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General Forum => Your Birds In Flight => Topic started by: LASTWOODSMAN on April 08, 2018, 03:46:29 PM



Title: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 08, 2018, 03:46:29 PM
This Rearwin Speedster Dumas 30" has been sitting on the shelf for 3 years now.  I could not wait any longer.   ;D    Just tied up a  3/16" motor, two strands each 13" long,  Crocket Hook on the prop hook, to the rear motor peg is   15 1/4"   .    Temp was 34 deg F (real feel 26 deg F), winds 12 mph from the West, gusting to 18 mph, and only 37% humidity,  12:30 PM and partly sunny.   I never checked the balance, and the bed tosses were OK.  So I grabbed my Flight Supervisor "Trapper"  and we went out to the Cricket Wicket, and got two perfect test glides with a very slight left turn, going crosswind and downwind - it was really hard to find a leeward windless side of the surrounding trees.   So ... I finger wound about 200 turns ( I was worried it would not have enough power in the first place, when inside the apartment, I could hardly feel any air wash to the rear, from test runs of the motor using that  9"  black prop, plus the rubber was now starting to get cold ).    Those 200 turns by finger gave it a perfect  10  second slow flight, staying low about six feet off of the ground the whole way, about 20 yards, with a very slight left turn !!  Then another perfect  12 second flight on 300 turns hand wound, low and very straight.   By now, the wind was getting stronger, but I made one more flight anyways, and I put a lot of turns into the motor.  The wind got a hold of her and she was swooping up and diving a couple of times, and eventually driven down into the grass of the Cricket Wicket,   :-\   which was not too short and not long.  No damage.   :o    So, I forced myself to pack up and wait for another day.   I am pretty excited about flying this "Jumbo'  30"  Rearwin Speedster now!  Oh yeah,  the model weighs  86.4 grams  and the wing area is  135.4sq"  -  which equals a wing loading of  0.64 grams per square inch of wing area.  Now I might as well see if it balances to the CG on the plan.   I think I must put a third strand of  3/16"  rubber on, or make a braided motor, both of which I have never done before.   Oh yeah - I just balanced it now - it needed a further  3 grams  of clay that fit right into the engine air intake hole in the front of the noseblock.   Suggestions are welcome.    :)

PIC #1     30" REARWIN SPEEDSTER  rubber is loaded
PIC #2      Flying straight out to the left of the "Pitch" of the Cricket Wicket
PIC  #3     Climbing and swooping down and climbing again in gusty high winds
PIC #4       "Trapper", Rearwin Speedster, and backpack in Cricket Wicket of Jackson Park, Windsor , Ontario, Canada  April 8 2018     34 deg F

LASTWOODSMAN


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on April 08, 2018, 08:00:22 PM
Nice looking model - good covering effort and the glazing looks neat. That's keen - you must have been cold.

John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 09, 2018, 01:03:57 AM
Thanks John - I think I finished the covering with one light coat of Krylon clear gloss rattle can.  
     I just finished my first braided motor -  two strands of 3/16" each strand 26"  long, then braided down into a 13" motor of 4 strands each 13" long, crocket hook to rear peg is  15 1/4" - that should keep the nose plug on.    180 winds by finger gives 12 seconds of power run, and I do feel more air wash blowing backwards.   I am ready for tomorrow now - supposed to be 39 deg F winds 6 mph gusting to 9 mph in the afternoon, and I will be going flying - hopefully get some good pics, and we will see if that extra 3 grams of clay, in the nose block to balance it, will have any effect on the flight.  The normal temperatures this time of year are highs in the mid 50s Fahrenheit.
      Oh yeah, almost forgot - I am bringing the winding stooge this time ...   :o   :o

LASTWOODSMAN


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 10, 2018, 12:28:12 AM
REARWIN SPEEDSTER Dumas  30" Flight Report MON APR 9 2018

3 pics of what the pristine model looks like first.
PIC #1    4360
PIC #2    4333
PIC #3    4338

PIC #4    8510      SIXTH FLIGHT
     Another great day flying - this hobby is starting to pay off.
Weather at  5:00  PM was 37 deg F (feels like 32 deg F), winds 7 mph gusting to 11 mph from North East, humidity 60 %, -  there was a lot of  disheartening light flurries most of the day when it was 32 deg F.  But we went flying when the snow stopped.  The ground was not hard, the grass was not too short, and not long either, in the circular,  encircled and surrounded by large trees, "Cricket Wicket" of Jackson Park, Windsor, Ontario, Canada.

PIC # 5  8509      FIFTH FLIGHT
     This 30" Dumas Rearwin Speedster really flew right out of the box and  right off of the building board table.  All I had to do was balance it to the Center of Gravity CG on the plan, using 3 grams of modelling clay, that totally filled up the air intake hole, flush to the front of the removable nose bock.  This plane flew with the kit supplied  9"  black plastic high torque prop.

PIC #6   8507    BRAIDED MOTOR PULLED OUT   NO WINDS ON IT YET
     This braided prop was my first - a 52" long piece of  3/16"  rubber, folded over for a loop of 26" (each strand  13"), then braided with a winder, then the loop snipped and the ends tied off, resulting in a 4 strand braided motor that was 13" long.  I did not even lube this braided motor or break in the rubber by stretching it previously.  The motor did start to weaken and lose its rubbery springiness due to the cold,  but boy, would I ever like to see how that braided motor does in warm weather.

LASTWOODSMAN


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 10, 2018, 12:40:20 AM
REARWIN SPEEDSTER Dumas  30" Flight Report MON APR 9 2018 cont.

     Well, I got 7 flight pics in total, but they did not turn out bright, because the sky was dark and gloomy and ominous and cloudy, and even giving a few very thin light flurries of snow.  The weather looked bad all day with flurries and rain being forecast to start all the time.

     We left the apartment at 4:45 pm and got to the park, and set up the stooge and I was winding by  5:00 pm,  with rain forecast for  6:30 PM.
I made 8 flights, and on the last two, the wind was picking up and the flurries were starting and the sky was looking pretty ominous - good thing I had my umbrella.  We got home by 6:30 pm, and the tissue was already starting to sag from the humidity.

PIC #1     8500      IN THE STOOGE
PIC #2     8504      BRAIDED PROP PULLED OUT
PIC #3     8499      FIRST FLIGHT
     I knew this was going to be a good day right from the first flight.  I put in 14 cranks of my  15:1  winder =  210 winds and I let her go.  A perfect 15 second flight slightly turning to the left.  
 
PIC #4     8502    RH WHEEL PANT AND WHEEL BROKEN OFF  
PIC #5     8503    SCOTCH TAPE REPAIR
PIC #6     8501    SECOND FLIGHT    
     On the second flight I put in 300 winds and got another perfect flight of 18 seconds.  Actually, they were ALL PERFECT FLIGHTS.   On landing on this second flight, I picked up the plane without checking it all out, and walked back to the stooge, where, to my surprise, it was missing the right hand wheel and wheel pant.

LASTWOODSMAN


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 10, 2018, 12:47:49 AM
REARWIN SPEEDSTER Dumas  30" Flight Report MON APR 9 2018 cont.

PIC #1      8506       1/32"  LANDING GEAR WIRE BENT BACK
     I went back and found them, and Scotch taped the  1/32"  Landing gear wire back into the groove of the wheel pant (with the wheel in the middle of course).  I also had to bend the "ankle" back to shape, of the LG wire.

PIC #2       8505     THIRD FLIGHT  
     Third flight I tried launching it directly into the wind on 360 winds and only got 12 seconds of flight, and bent the LG wire again on landing, and had to bend it back  :P  - story of the day - if you ever build this model,    USE  1/16"  WIRE (NOT  1/32" WIRE) FOR THE LANDING GEAR.  Actually, I was always afraid to fly it because of this very reason.

PIC #3       8508      FOURTH FLIGHT
PIC #4       8511      SEVENTH FLIGHT
PIC # 5      8513      ON THE WAY HOME      REPLICA SPITFIRE IN BACKGROUND
     Well, the flights went on, and they all flew very well, and the rubber kept getting weaker and weaker, and my longest flight was 22 seconds on 420 turns.    ;D  Then it was becoming too cold and windy, and rain or snow was coming, so we packed it up.  At least I got in my second great day of the season flying this summer.  I did not make any adjustments for the stab or rudder, and the downthrust was already built as per plan into the nose.
      Tomorrow it is supposed to be a mix of sun and clouds, 43 deg F,  wind  7 mph  gusting to  12 mph, and 56 % humidity.   After that a week of high wind and rain, so I better get out again tomorrow and try to get some good sunny in-flight pics.  Little bit of repairs to do first.  Happy flying!   8) :)

Get out and FLY   ::)   :o

LASTWOODSMAN


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on April 10, 2018, 10:20:29 AM
Glad it all worked Richard. Good luck next time.

John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 11, 2018, 01:04:59 AM
REARWIN SPEEDSTER Dumas 30"   Flight Report TUES APR 10 2018
DAY # 3

     Well, today, April 10 2018, was yesterday's tomorrow.  And I did make it out flying again - 3 days in a row - we NEVER get 3 days in a row good flying weather ...
      After all of that damage was done yesterday, I worked feverishly this AM after running the dog first thing, trying to strengthen up the weak, and always bending upon landing,  1/32" wire landing gear.

PIC #'s     8514, 8515, 8516
     The damage from yesterday's flying is as follows - the bottom tips of the large balsa "V"-shaped "trousers" (is that the word?) landing gear strut legs, that extend down from the fuse to the wheel pants, had its tips mangled and broken off from the wire bending on the impact of every landing,  and the Landing Gear wire was bent horribly out of shape.  So, I decided to try to strengthen the wire from the "ankle", down the groove on the inside of the balsa wheel pant, by gluing on two small hardwood Mahogany planks, right over the wire going down that groove, on the inside of the wheel pant.  First I had to sand down to bare balsa, the inside face of the wheel pants, and get out that ingenious tool, the small Jewelers File, and retrench that groove in the wheel pants so that the wire sat fully into the groove.  This involved having to securely block up the whole plane with big balsa blocks.  I straightened up the wire ends of the LG first, and the used 5 min Epoxy to glue the broken balsa tips back into place, on the LG wire, and onto the bottom of the  balsa "V"-shaped "trousers".  I also sanded those two little Mahogany planks down past the stain that I had put on them, so I was hoping that this would take the Epoxy glue better.  I also cut two balsa support planks for use in clamping the outside of the wheel pants.
 
PIC #'s   8518, 8519, 8520
     Here it is all clamped up and glued with 5 min epoxy, and the weight of the heavy clamps was offset with strips of masking tape to hold everything relatively in place, while drying.

LASTWOODSMAN


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 11, 2018, 01:12:21 AM
REARWIN SPEEDSTER Dumas 30"   Flight Report TUES APR 10 2018
DAY # 3  cont.

PIC # 8521, 8522
     And here is the result of all of that reinforcing work.  Now it was time to fly with out further adieu.
     Also,  before leaving the apt, I scotch-taped a small file folder cardboard tab, to the rear of the rudder just above the stab, and bent it  for a little more left turn, which in fact actually really worked out well,  and is very "adjustable".
     We left the apt around 3:30 PM and the temp was 43 deg F (feels like 41 deg F),  winds 4 mph from the West, gusting to 6 mph, and only 42%  humidity, but the flag at the entrance to the Park was at  3/4  attention - clearly it was more windy than 4 mph !!!

PIC # 8523
     Here it is loaded in the bungie-corded Winding Stooge for Flight #1, in the Cricket Wicket of Jackson Park, Windsor, Ontario, Canada.  I only got six flights today.

PIC # 8524
      First Flight  on 375 winds using the same braided motor as yesterday, and I got one complete tight left hand circling flight that lasted 10 seconds, and a slow soft landing running out the  rubber.  :o   For some reason, I was getting much longer 15 second flights yesterday on the same number of winds. ??   :-\   :-\

PIC #  8525
       Second Flight same # of winds, and another 10 second perfect tight circle that landed right at my feet!

PIC #  8526
       Third flight 435 winds and a 12 second flight, and the landings are now taking their toll   >:(   on that flimsy  1/32"  wire landing gear at the "ankle".   I was having to really try to bend it back into shape after each landing.   :(

LASTWOODSMAN


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 11, 2018, 01:25:16 AM
REARWIN SPEEDSTER Dumas 30"   Flight Report TUES APR 10 2018
DAY # 3  cont.

PIC # 8527
       Fourth Flight  390 winds and a 13 second flight.  And bending the wire gear on landing again.   >:(

PIC # 8528
        Fifth Flight   420 winds  - only 8 seconds as a big gust of wind drove it hard into the groun - no flight pic, but here is the pic of the damage back at the stooge - the left side wheel pant had its Mahogany reinforcement plank broken right off.   :o   :o

PIC # 8529
        Sixth Flight - I am a sucker for punishment   ::)   - 450 winds and the longest flight of the day - 15 seconds - and another hard landing that broke the wheel and wheel pant right off    :o   (because there was no reinforcement plank as it had been ripped off the previous flight).

PIC # 8530  showing the ripped off wheel and pant.
 AND ... now it was getting toooo windy, so we packed up and went back home.  At home the wind was now 11 mph gusting to 16 mph - way too windy.

PIC #  8532
        Here is what the damage looks like back at home.   Now we have a week of high wind and rain and bad flying weather forecasted.   :(   Lots of time to think about how to make a proper fix.  I am open to any suggestions on how to fix this as I am really stumped.   I am really disappointed that the kit used  1/32"  wire instead of  1/16" wire.    :-\    I will know better for next time.    8)    Maybe it is just time to "put her out to pasture" on the shelf with four other planes also now put out to pasture ... on the shelf.
     And that was my three day adventure with the Dumas 30" Rearwin Speedster, after it languished lonely on the shelf for three years.  Thanks for watching! Keep 'em FLYING !!

LASTWOODSMAN & "Trapper"
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on April 11, 2018, 04:52:07 AM
How about running another 1/32" wire towards the back edge of the trousers(inset into the balsa) and bend it to join(solder or thread/CA wrapped) onto the vertical section of the existing UC(the part inset into the wheel pants). The axle section would still be the single 1/32" wire. The recess in the pants would need to be wider.

This extra piece of wire does not join onto the fuse being anchored into the balsa trouser legs with say silastic to allow a bit of flex. without bending permanently.

John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: flyerinokc on April 26, 2018, 03:02:37 PM
Great job another beautiful airplane. The wind seems to be a burden for this little airplane but she perseveres.

Mike


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: flydean1 on April 26, 2018, 03:41:36 PM
Nice model.  You really should lube the motor.  I tie the ends and lube before braiding.  Stops edge knicking and premature failure of the motor.

You are not really stressing that motor much, but without lube you are courting disaster.  Also if you're not using a winding tube.  It takes only one failure and a destroyed fuselage to make the extra "bother" well worth the time.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: ZK-AUD on April 26, 2018, 05:32:17 PM
Just on the undercarriage issue.  A model of this type ought not to be hitting the ground so hard when it lands.  Maybe have a look at the glide trim and make sure the prop is free-wheeling reliably.  As for the wheel spat John's solution is one option.  Another is to pin the joint with a piece of cocktail stick or similar and use epoxy to glue it.  Do one side at a time and prop the model on its side until it hardens.  Carefully put a nice neat fillet of epoxy around the joint using the rest of your cocktail stick (or even shout yourself a new one!) and as the epoxy settles you'll get a nice strong joint and also a scale-like fairing effect at the joint.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 27, 2018, 04:32:31 PM
     Hi John - thanks for the tip and the great diagram below.   :)   The Landing gear is pretty bashed up now, so I think I have to make new triangular balsa Landing Gear Trousers.  Still thinking of just pressing the LG wire into the balsa of the Trousers, instead of cutting a trough   :-\   into the trouser for the wire gear to sit in.
     Hi flydean1 - I used to lube my motors - but if I am just trying to get it trimmed, I am just lazy, and put in raw rubber motors.   I have had plenty of damage from exploding rubber motors from too many greedy winds, inside the fuse, but only tissue damage so far.  ::)    Plus, I am now able to see when the rubber is getting close to the breaking point, so I just stop well short of the winds to break it - I am just a small park flyer - not good enough for contests ...
     Hi   ZK AUD   "Mike" - thanks for the tip    :)   - I don't quite follow it all, so I will send you a PM with a couple of questions.   You can see in the third pic #8735, that I have lost the tip piece of the triangular balsa Landing Gear Trouser - they were getting pretty broken up anyway ...

PIC #1    8733
PIC #2    8734
PIC #3    8735
PIC #4    8736
PIC #5    8737
PIC #6    DIAGRAM OF THE FIX

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 27, 2018, 05:46:36 PM
REARWIN SPEEDSTER FLIGHT REPORT THURSDAY APR 26 2018

     Well, I did give it the 'ol College effort, and I went back flying this afternoon, after flying the  18"  AIR CAMPER  in the morning,  this time with the  'Jumbo'   30"   REARWIN SPEEDSTER.   At  3:45  PM, it was 55 deg F, winds were 12 mph from the SW gusting to 19 mph, and only  58% humidity, and NO Cricket players on the Wicket !!   I used a thick wide elastic to temporarily Jerry-rigg the left side wheel and wheel pant onto the  1/32" landing gear wire.
     This Speedster has a tight, braided, heavy duty  3/16" rubber motor of just under   15 1/2"   in length - prop hook to rear peg is  15 1/2".   I put in 450 winds into the rubber, and it really went fast, zooming and speeding, right by me.  Launching downwind in the leeward side of the trees, I needed that real  burst of power to get it going faster than the 12 mph wind, when it finally gets out of the lower speed sheltered wind, and out into the real wind, in order to get lift.   It did great tight circles back into the windless leeward side of the trees, so I had some great flights - about a dozen - longest flight 24 seconds.

PIC #1    8722
PIC #2    8723
PIC #3    8724
PIC #4    8725
PIC #5    8726
PIC #6    8727

LASTWOODSMAN


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 27, 2018, 05:50:25 PM
REARWIN SPEEDSTER FLIGHT REPORT THURSDAY APR 26 2018 (cont)
 
     I had a couple of "two tight circle" flights, and a few flights just floated into the wind for a soft landing.   After almost every landing, I had to bend back the  1/32" LG wire where it bends from impact, right at the bottom of the trousers.  And it rips up the bottom balsa of the trousers  pretty good.  I lost a piece of balsa at the bottom of the left trouser ...
     But she still flew while wounded, and was running out the winds of the rubber motor.  I thought that that big rubber band on the left wheel pants would slow it down on that side, so before I went out, I added two cardboard tabs on the stab, left tab bent down, and right tab bent up.  Surprisingly, it flew just fine in circles left ( I also had put a small cardboard tab on the rudder the last time I was flying it, and it was bent for a slight left turn, which also worked).

PIC #1    8728
PIC #2    8729
PIC #3    8730
PIC #4    8731
PIC #5    8732

Well, it was a lot of fun ...   ::)  8)  :)

LASTWOODSMAN


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on April 27, 2018, 08:26:59 PM
It's a great pity you don't have lighter winds for a while, Richard. Full marks for trying and thanks for all the photos.

John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 08, 2018, 01:52:17 PM
REARWIN SPEEDSTER FLIGHT REPORT MAY 8 2018

     Well chaps, I am back after totaling my Easybuilt 25" WACO "N" bipe yesterday.  Today, I got right back in the saddle, and we headed out to the Cricket Wicket in Jackson Park with the  Dumas  30"  REARWIN SPEEDSTER, high wing Jumbo.    At  11:00  AM,  it was  63 deg F,  with winds  7 mph  from the south, gusting to  11 mph,  and ONLY  45% humidity! - but with still lots of dew on the long grass.    When we got home at Noon,  the wind was  9 mph  from the SW, gusting to 14 mph,  and  45%  humidity.
      She has the braided  3/16"  motor of four strands, when twisted up and resting, is just under  15"  inches long, with prop hook to rear peg of 15 inches.   She is flying with broken ankles, where the  1/32" wire bends at the bottom of the triangular balsa landing gear trousers.  A big chunk of wood is missing on the bottom of the left trouser, and I just attached the balsa wheel pant to the wire with a thick elastic.   It works real good, and I just bend the wire back into shape on both gear, after landing.  Landings today were pretty soft coming back into the 7 mph wind and running out the rubber.   Plus the grass was still  6" long and thick,  as they mowed the rest of the park yesterday, but had not mowed the cricket Wicket yet today.

LASTWOODSMAN
Richard                                                               cont.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 08, 2018, 01:58:26 PM
REARWIN SPEEDSTER FLIGHT REPORT MAY 8 2018  (cont.)

     I wound  330  to 450  winds into the rubber and had about 14  great flights, all circling left from one complete circle to one and one-quarter circles, all staying within the Cricket Wicket.  I used a little bit of down tab on the left elevator and a little bit of clay weight on the right wingtip to widen the circles out a little bit   -  thanks for the tip "Free" ( 'spliffsecond '), of the weight on the opposite wing.   All of the flights were  15 - 20   seconds on a perfect sunny day.  Two boys from the High School were watching from the Cricket stands as I sent her out on the first flight, which to my relief, was long and very slightly turning left, after which I adjusted the rudder tab for more left turn.  I got one of the boys to take a pic of my launch ( my only pic of launching the Speedster ).   The last flight of the day, when the winds were getting higher and gustier, the Speedster was driven down into the grass by a gust of wind ( see pic ), so I called it a day, and there was NO DAMAGE to the plane.
     Nothing like launching a "Jumbo" - you really get to "throw" it ...
     So, my flying soul is now rejuvenated,  and seeing as the weather is going to be way too windy for the next several days, I can now happily get back to building the  18" Albatross D5.

Keep 'em flying!

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: flyerinokc on May 08, 2018, 03:41:55 PM
Congratulations well done!


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on May 09, 2018, 05:38:44 AM
That's a good finish to the saga Richard - fitting reward for perseverance.

John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 09, 2018, 10:21:03 AM
     Thank you gentlemen, for your kind encouraging words.   :)   They really do help to foster impetus in this quite perilous,    ???   and precarious,    :o    business of flying Free Flight rubber powered, balsa and tissue, miniature aircraft.     :D

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 16, 2018, 04:17:14 PM
REARWIN SPEEDSTER FLIGHT REPORT MAY 16 2018   pg 1 of 3

     We just had another fun day flying the Dumas  30"  REARWIN SPEEDSTER.   It was a great forecast of  5 mph wind.  When we got out to the Cricket Grounds at  11:00 AM,  it was 61 deg F, winds 8 mph from the North, gusting to 12 mph, and 72% humidity, which did not affect the tissue.   And she flies just fine, even with that broken left foot.   8)
      Last night I took off the old braided motor.  I noticed the last couple of flights from a couple of days ago, that it seemed to have lost a little bit of power.  Sure enough, there were three breaks in the rubber of that braided motor - good thing I took it off.   :o   That motor was braided from a single loop of 30" (two strands of 15"), of  3/16" rubber, and knot tied.  I had stretched it out and put a whole bunch of winds into it, folded it over - ie  now four strands, each strand 15",  and allowed it to twist and braid up, tied it all off with a few strings into a little loop that I could insert the rear aluminum motor peg into, and at rest and braided, it was a  12"  braided motor.  It now went into the garbage.
       Then I made a longer (by 2 inches) braided motor.    :D   I started out with one loop of 36" this time knotted (two strands of 18"), of  3/16"   rubber.   I stretched it out,  put a whole bunch of winds into it, folded it over ( now four strands of 18"), allowed it to twist and braid up, tied it all off with a few strings,  and at rest and braided, it was a  14"  braided motor ( prop hook to rear peg is  15" ).   I put that new motor into the Speedster and that is what it flew on today.    (cont.)

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 16, 2018, 04:21:53 PM
REARWIN SPEEDSTER FLIGHT REPORT MAY 16 2018   pg 2 of 3 (cont)

        I still could not get very far past 450 winds, as it was almost impossible to turn the crank on the winder because of all the rubber pressure.   :-\   I had put a little extra clay weight into the nose, because of the added rubber weight in the rear of the plane.  I had also put a little extra bit of clay onto the right wing tip also, to counter any additional torque that would push the plane left.
      I kept notes on my flights today.  I had 14 flights from basically  15  seconds, to a new  25 second record (by one second), using anywhere from  375  winds  to  480  winds, and I really saw no improvement by using the  14' braided motor,  over using the 12"  braided motor.
      But it was still a lot of fun.  On the sixth flight, I tried a launch almost directly into the crosswind - BIG MISTAKE - a gust of wind caught the plane and drove it into a cartwheell crash at full song, five seconds into the flight !  ( Heart went up into throat ).    :'(    Luckily, there was NO DAMAGE !   This plane is STURDY !!!     ;D
       The best launches were downwind from the leeward side of the trees.  It was doing a perfect circle up to two complete circles, and staying well within the Cricket Wicket and away from the trees.  I noticed it was flying pretty low and steady, so I took some nose weight clay off, and then on the  11th  flight, I got my new record of 25 seconds, going very high and beautiful with two full circles !!   (cont.)

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 16, 2018, 04:24:35 PM
REARWIN SPEEDSTER FLIGHT REPORT MAY 16 2018   pg 3 of 3 (cont)

        I still had little bends on the  1/32"  landing gear wire, at the ankle, but I just bent them back to shape for the next flight.    :P    The more I think about this, the more I think that the designer intended it to be that way.   I was getting good at examining the plane after each flight, wiggling the struts and wings, and checking for damage, but in my excitement after the 25 second flight, I walked back to the stooge without checking the plane, only to find that the left wheel spat and elastic was missing !!    ???    It took me well over half an hour to find it in that long thick grass that is really growing now with all of the rain we have been having, leaving a lot of standing water all over the park, and putting the grass mower schedule behind.
       Next on the agenda - since four strands of  3/16"  equals six strands of  1/8"  rubber, I will now try to make a new braided motor out of six strands of  1/8"  rubber.   Should that make a difference in flight duration ?
     Note the Spitfire and Hurricane replica warbirds amongst the trees in the background in Jackson Park, in the last pic.

The End

Keep 'em flying !!

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: bsadonkill on May 17, 2018, 03:00:22 PM
Great flying Rearwin Speedster Richard ! I always use the Don Ross method for rubber prep and break in . Clean the rubber first, I use a square not with a drop of super glue. Pull it out 3 times the length,  rub lube into it for a minute or two then let it rest for ten minutes. Then pull it out for four minutes at five times the length.     


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 22, 2018, 11:28:13 PM
Thanks Don.    ;)    I will try lubing up the motors that way real soon.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 22, 2018, 11:33:32 PM
REARWIN SPEEDSTER MAY 22 2018 FLIGHT REPORT

     I walked the dog at  1:00  PM today, Tuesday May 22 2018, and there was hardly any wind.   We got back and I feverishly tied up a new motor for the  30"  Rearwin Speedster.   The old motor was 4 strands, each strand  18"  long of  3/16" rubber, which when twisted and braided,  lay  14"  long at rest.  Prop hook to rear peg is  15".    I wanted to try a motor like Pete Fardell uses on his  31"  Jumbo  Guillow "FAIRCHILD", so I got out the  1/8"  rubber.   I made six strands  ( or three loops ),  each strand 23" - about  one and one half times the prop hook to rear peg distance.  (I don't think I have enough room in the fuse for 8 strands - there are crossmembers between the formers all the way down the fuse, that I think already interfere with the motor that sits just above these crossmembers).   I tied off the three knotted loop ends into one small loop with string twine,  so I could get the  1/8"  aluminum tube rear motor peg through that loop opening, and used a medium Crocket hook from George Bredehoft at Volare, and I also tied it up with string at the motor's front end where the rubber loops onto the Crocket hook.   I took out the old motor (braided),  and put in this new motor (not braided), which has an equal amount of rubber for the first 18" of the 23" motor ( ie - packing an extra 5 inches of six strands of  1/8"  rubber ).  Then we packed up and went to the Cricket Wicket to see if there was any difference from the braided  14" motor of  3/16" rubber, compared to the new unbraided six strand  1/8"  rubber,  23" long motor.
     Here is a pic of both motors.   Pic #1   9054
     Here are two pics of the internal fuse cross members Pic #2   9060,   and Pic #3    9062.

LASTWOODSMAN
Richard                                        (continued on next reply)


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 22, 2018, 11:38:24 PM
REARWIN SPEEDSTER MAY 22 2018 FLIGHT REPORT

(continued from previous reply)
      We made it to the Cricket Wicket at  3:00  PM  today, Tuesday May 22 2018,  temp of  73 deg F (feels like 84),  winds from the West at  6 mph,  gusting to  9 mph,  and  73 %  humidity.   I only got four flights in before pouring rain.  

Flight #1  -  480 winds,  17 seconds,  one and one half circles
Flight #2  -  630 winds,   22 seconds,   one circle - things were looking up !
Flight #3  -  675 winds,   15 seconds

     Then the raindrops started coming down and started to spot all of the tissue with water drops.   I sent it off anyway.

Flight #4  -  630 winds,  8 seconds  -  it was climbing and stalling, and porpoising wildly, and dipsy-doodling, and hit the long grass with a lot of winds left.  I surmise that, of course, it was tail heavy because of all the raindrops on the whole plane, as it was raining much harder now and we had to skidaddle-it out of there!
    
      BUT -   I did get an all time best action pic though - Pic #3  9053 - that is the reward for the price you pay for getting soaking wet - no umbrella - good thing I had that light green towel with me, to cover the plane for the walk home ----  
     The Speedster was "playing chicken" with me, coming in fast, right straight for my head, but I held my ground, and I panned and swung that camera wildly over my head, almost throwing my back out, trying to twist at the last second, and keep the plane in the camera's viewfinder - kinda like when those lightning Teal ducks and Snipe that come flying low out of nowhere, and right over your head, and you have to awkwardly swing your shotgun really fast right over your head backwards trying to hit them.   But I GOT THE SHOT, and did not have to enlarge the pic at all.   You can see how fast I was swinging, by the blur of trees in the background.

PIC #1     9051
PIC #2     9052
PIC #3     9053

     Well, I went back out with the dog at  7:00 PM.   The weather channel said  6 mph  winds.   They were clearly wrong as it was much  stronger than that which was posted on the weather network.  Alas, and maybe for the best, and just as well, the Cricket Wicket was occupied.   And ...  of course, they had cut the grass late this afternoon!!  
     Tomorrow is forecast for winds from the NorthWest at  5 mph  gusting to  7  mph at  10:00  AM,  to winds from the SouthWest at   6 mph  gusting to  9  mph at   3:00  PM, and SOLID SUN !!!

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: danmellor on May 23, 2018, 04:37:07 AM
Hi Richard!

I have this kit in the stockpile. I was considering a conversion to GM300 CO2 power, so your posts have been very helpful. I always thought the U/C looked a bit dubious...!

Great job on yours!

Dan.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 23, 2018, 03:22:06 PM
    Hi Dan Mellor.  Thanks for your compliment!   You said " I always thought the U/C looked a bit dubious...!" - I always thought so too - but more and more I am wondering if there was "method in the madness" of the guy who designed the 30" Dumas Rearwin SPEEDSTER with  1/32"  Landing Gear wire.
     You can see from the first two pics,  how that wire bends a little backwards on landing  (thereby absorbing a lot of the force upon landing ).   They bend backwards at a point a little further up and out of, the trough in the bottom of the triangular balsa wheel trouser.    You can see in the third pic, how I just bend them back into position pretty close to shape and ready to fly again - one hand holding the tip of the triangular balsa trouser, and the other hand bending the wheel pant - very easy and quick. 
      I was told to expect some kind of damage, on landing  84 grams  ( 3 ounces ) of plane, onto landing gear with wheel pants like that.   Very easy to bend back into shape since it is  1/32" wire.   My mistake was using side cutters to snip off the landing gear wire, flush to the outside of the wheel pant - I should have left it sticking out a lot longer, as that would have left me with more options.
      I don't really know how easy it would be to bend  1/16"  Landing Gear wire back to shape, after it got bent on landing. 
     Those "Trousers" are only glued to the landing gear wire that sit in a "trough" in the Trouser.  The great part is, nothing on the Trouser is glued to the fuse.  The top flat of the Trouser sits flush along the fuse right along and on top of a longeron, and the rear of that triangular Trouser sits right on the joint of the wing strut where the strut connects to the fuse strut mounting plank - very sturdy to absorb the backwards force on the wheels upon landing.   See pics #4 and #5.

PIC #1     9075
PIC #2     9076
PIC #3     9077
PIC #4     9078
PIC #5     9079

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: danmellor on May 24, 2018, 05:07:56 AM
Thanks for the info! I'm just finishing the Gipsy Moth from the same range. That also has a u/c that's largely 1/32" wire, but there is a lot of it and it's all solidly soldered together! It will have a lot lower loading too, so I'm not anticipating any violent impacts...

Cheers,

Dan.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on June 01, 2018, 08:11:08 AM
SPEEDSTER MAY 27 2018 FLIGHT REPORT AND REPAIR

    REARWIN SPEEDSTER   30 "  -  six flights on May 27 2018  -  Well, I stayed up late til  1:30 AM  tying motors.  Got up early, eager to go flying,   Wink   ran the dog, came back, and tried to get out to the Cricket grounds in Jackson Park, early, before they stated playing, and before the Auxiliary Police   :o :o  started at Noon.    Left home at  9:30  AM  - the weather 72 deg F (feels like 86),  Winds 4 mph from the SW,  gusting to 6 mph,  and 88% humidity - beautiful sunny day.   Had a new  14"  four strand motor of  3/16" each strand, in the Speedster (prop hook to rear peg is 15").   First flight  245 winds gave a slightly porpoising flight of 9 seconds.  So I put more nose weight in,  and on the second flight on 450 winds,  I got 16 sec on a perfect, one and one half circles.  Third flight 480 winds gave 22 seconds on another perfect, one and one half circles.   ;D     Fourth flight 495 winds 20 sec, fifth flight 450 winds and 18 sec. (continued on next reply)

four PICS       9129  9130  9131  9132

LASTWOODSMAN
Richard 


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on June 01, 2018, 08:12:57 AM
SPEEDSTER MAY 27 2018 FLIGHT REPORT AND REPAIR  (cont)

       REARWIN SPEEDSTER   30 "  -  six flights on May 27 2018  (continued from the last reply)   Then I changed the motor to a four strand  16"  of  3/16" -  sixth flight 570 winds got 20 sec, which could have used a wee bit more nose weight - but alas, the bottom of the front former broke in, along with a couple of stringers     :-[  - very fixable though!   It was getting boiling hot anyway and we left - got home at  10:40 AM -  the temp was now 75 deg F (feels like 91 deg F),  winds 7 mph from the South gusting to 11 mph and 83% humidity,  and the blazing temp is going up to 91 deg F (feels like 104 deg F) later today.
      But we got our flights in!!   Cheesy    This Dumas  30"  Rearwin Speedster seems to give standard 20 second flights on 450 winds of four strands of  3/16"  rubber each strand 14" long, prop hook to rear peg is  15".   I will infill plank the nose, and I will never ever build a model without infill planking the nose ever again ... (continued on next reply)

three PICS       9133  9134  9135

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on June 01, 2018, 08:15:11 AM
SPEEDSTER MAY 27 2018 FLIGHT REPORT AND REPAIR  (cont)

9139    Bottom of front former is broken off, and is sitting just to the right of the fuse front on the cutting mat,  the tissue and broken stringers are removed , and the decal is peeled back.

9141     I glued back on that small piece of the bottom front former, and cut out two more broken sections on the fuse bottom.

9143     Two large planks are now cut.

9144      The two large planks are now fitted.  (continued on next reply)

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on June 01, 2018, 08:17:22 AM
SPEEDSTER MAY 27 2018 FLIGHT REPORT AND REPAIR  (cont)

9145      I glued in two stringers between former #1 and former #2,  and cut out four more smaller planks.     Total weight of the six soft balsa infill planks is  1.33 grams.

9146      Now all six planks are fitted.

9160     The plane is now braced and blocked up well, for the infill planks gluing.

9161     All planks are now double white glued, and four thin small balsa wedges are glued into crack openings.

9274      The planks are now all dry,  and the thin wedges are cut off and everything is all sanded smooth.

9277     The bare broken balsa and all of the planks are now stained "Golden Oak" color.    (continued on next reply)

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on June 01, 2018, 08:36:09 AM
SPEEDSTER MAY 27 2018 FLIGHT REPORT AND REPAIR  (cont)

9279    9282     I had no screws, so I used some  0.040" diameter twisted copper eyelet stems, made from  twisted 0 .020"  diameter copper wire, to  use as screws inserted through the small hardwood mahogany  plate that holds the wire landing gear into the groove on the balsa wheel pants.  I drilled small holes with a  #58 drill bit  (0.0415" diam) and a pin vise, inserted the copper stems into these holes in the plate and wheel pant, and ran thin gap filling CA  glue, down these stems, and between the small mahogany plate and wheel pant.  I inserted several of these on each wheel pant.   Hopefully it holds it all together now     :P    on hard landings in short grass. 

9285   9286    The red kit supplied peel 'n stick decal is now glued back in place.     (continued on next reply)

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on June 01, 2018, 08:37:43 AM
SPEEDSTER MAY 27 2018 FLIGHT REPORT AND REPAIR  (cont)
     
9287    9288   and    9295     It all looks a lot better now,  than having that elastic "cast" holding the left wheel pant on at the broken ankle,   and hopefully a lot stronger too.    Only the thin  1/32"  landing gear wire should bend on impact now, which is easily bent back to shape by hand.   She is still flying as a partial amputee veteran, after loosing the left tip of her triangular balsa trouser, but that has never stopped her before ...

She is ready to fly once again, and I have made up four new motors to use to try to break that 25 second record  -   3/16"  rubber motors, all with four strands, and each four strand motors are  14", 18",   20 1/2"  ,  and  22" in length  motors, prop hook to rear peg is  15".    I might be able to get some flying in, in the morning before the rain starts at 11 AM.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on June 02, 2018, 02:41:41 PM
REARWIN SPEEDSTER      JUNE  1  2018      FLIGHT REPORT

     REARWIN SPEEDSTER  30"  Dumas.   Well, I DID get out flying the morning of Friday June 1 2018, at 10:30 AM.  I had the BEST flying session yet, with the Speedster ever,  breaking my old record of 25 seconds,  and smashing it by 20%,  with a 30 second flight on 600 turns of the  18"  motor,  four strands of  3/16" rubber each strand  18" long, prop hook to rear peg is  15".   To say I am  ELATED is an understatement !!
     Weather at 10:05 AM was  72 deg F (feels like 84),  winds out of the North at  8 mph,  gusting to  12 mph,  and 83%  humidity, and sort of overcast.   I had 9 flights of two or more circles, which mostly all ran out the rubber and landed softly - very little bending of the  1/32"  wire landing gear, if any, and the grass in the Cricket Wicket was 4" thick and plush.
     I started out with the  14"  motor, and on the first flight on 450 winds, I got 14 seconds and  1 1/4 circle,  and running out the rubber on descent to a soft landing, and the plane was slightly climbing and stalling - slightly porpoising.  I added more clay to the nose, and adjusted the elevator tabs for a little less left turn.
     The second flight was 495 winds, 16 seconds, and two full tight circles, and again running out the rubber to a perfect soft landing.
     The third flight was 525 winds, 22 seconds, and  2 1/4  circles to another perfect soft landing.  I thought, no more need to stay with the  14" motor, and since I was armed with three more motors,  the  18",  20 1/2" and 22" motors, I proceeded to change the motor.  I am getting pretty good at changing motors quickly now.  With my new motor pushing stick,  the rubber motor loop and the stick sit right on top of the fuse center crossmembers, right in position, and the aluminum tube rear peg now goes right in first time every time.   I put in the 18" motor.
      The fourth flight, now with the  18"  motor, was 600 winds, and it was my RECORD SETTING FLIGHT of 30 seconds, flying two and one half circles to another perfect landing !!!   I was very excited.  
      The fifth flight was 705 winds, for 18 seconds, but only one circle (?) - I don't know why.
      The sixth flight was 675 winds, for 29 seconds and two and one half circles - another super great flight almost tying the 30 second fourth flight !!
      You can see that I now bring a little pencil and piece of paper with me, and make a note on each flight - my flight log runneth over ...
      The seventh flight was 645 winds, for 23 seconds, and two circles.
(cont next reply)

LASTWOODSMAN
Richard
PICS   9297   9309   9300   9296   9299   9310(1)


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on June 02, 2018, 02:49:51 PM
REARWIN SPEEDSTER       JUNE  1  2018       FLIGHT REPORT
(cont from prev reply)

      On the eighth flight, I put in 675 winds, and my friend showed up with her dog "Yulie", Trapper's buddy, a "Barbet" dog, a medium sized French water dog (looks like a Portuguese water dog or Irish Water Spaniel),  so we had to let our dogs say hello, while I held my "prop - wound" Speedster.  I told her that my plane was wound up ready to go and said "Watch this!"    I was trying to show off to her and her dog, and in my hurry to do so, I had launched it too close to the trees, and not far enough out in the middle of the Cricket Wicket.   I launched it, and it flew out perfectly, one full circle, and coming back around on the second circle, but in behind me high, and the changing wind brought it closer to the trees on the second circle and dangerously hugging the tree lined perimeter circle of the Cricket Wicket,  on the leeward side of the wind - ie the trees were blocking the wind, and the plane was not being blown further out into the middle of the Cricket Wicket.  So, it is zipping along, going left, fairly high and I see it is heading straight for the two large Spruces.    :o :o ??? ???    You know that feeling of TERROR !!   I found myself desperately pleading to the Speedster "turn turn turn", but it would not,   :-\  and in the calmer air, it was making a  "bee-line" for the gap between the two big Spruce, now at right angles to the prevailing wind from its right, but still in the calmer leeward air.  It looked like it was going to make it through the gap, as it tried shooting between the trees, on the leeward side, but as soon as it got in the middle of the two trees, it got into the prevailing wind, which then blew it right into the back side of the spruce on the left,  this after about  20 seconds  of flight, and it tumbled down through the evergreen boughs   :(   and stopping low enough for me to pick it up out of the branches.  Luckily, no damage.   ;D   There sure was a lot of little tiny baby spiders on that plane when I put it back into the stooge.   But my friend was impressed anyway.  (cont next reply)

LASTWOODSMAN
Richard
PICS    9307   9306   9298   9305   9301   9324


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on June 02, 2018, 02:54:32 PM
REARWIN SPEEDSTER          JUNE  1  2018          FLIGHT REPORT
(cont from prev reply)

     I loaded it up again for the ninth flight, even though the wind was getting stronger and changing direction.   645 winds,  and only a straight weak flight, fighting the changing wind and gusts that were now coming up.  Wind change ?   Broken rubber strand ?  
      So I decided to quit while I was ahead, packed up and went home.  I got home at  11:30 AM and checked the weather - now it was  75 deg F (feels like 90),  winds out of the North East now and a lot stronger at  12 mph  gusting to  18  mph, and humidity 78%.  So good thing I went home.  
      At home, I took out that motor, and upon further examination,  stretching small sections of each strand, and looking for nics and cuts,  I found none.  So I don't really know for sure what happened that last flight.
     But it was a lot of fun - a 30 sec flight    :D   and a 29 sec flight   :D   for a  30"  wingspan Jumbo, balsa Free Flight model Rearwin Speedster - that does not happen every day for me ....  And no damage to the plane, and the reinforced wheel pants hold quite well now to the  1/32" landing gear wire, and the planking reinforcements on the fuse,  and the wing strut mounting plank on the fuse are also holding just fine.  Of course, it helps to have beautiful thick plush green grass for landing on, in the Cricket wicket.   ;)
     Now to experiment with longer motors, maybe a right thrust shim behind the nose block to counter the extra torque that will push the plane left more,  probably more nose weight to counter the extra motor weight  -  I already have almost full up on the left elevator tab to try to widen the circles a bit ....  also have a lot of clay weight on the right wing tip ....  It is too windy today ...
The End
PICS      9310(3)    9310(6)   9302   9303   9304   9309
 
Keep 'em FLYING !!!    ( less modelling time  =  more flying time ? )

LASTWOODSMAN
Richard

Can this beauty, Anna Fedorova, ever play the piano !!  (I play this one on my accordion)
Sergei Rachmaninov Piano concerto no 2 in C minor, Opus 18, 3rd Movement here
https://www.bing.com/videos/search?q=+Rachmaninoff+Piano+Concerto+No+2+++3rd+mvt%2c+second+theme&&view=detail&mid=16EAB5758E6972393C1316EAB5758E6972393C13&&FORM=VDRVRV


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on June 10, 2018, 03:45:55 PM
REARWIN SPEEDSTER  30"         JUNE  3  2018          FLIGHT REPORT

     Well, we got up early at 7:00 AM to go flying and try to beat the rain that was coming at  9:40 AM. and to get to the cricket Wicket (grass was still not cut), before the players got there - they took it over yesterday at 10:00 AM all day, til the sun went down at 9:00 PM.  Trapper would only get a short walk first thing this morning ....  he got his big walk right after we were done flying.
     We got in 8 flights (broke no duration records), starting at 8:30 AM when it was still sunny.  Temp was 57 deg F (feels like 57 deg F),  Winds were 2 mph from the East, gusting to 4 mph, and the humidity was  94%.   We got in 6 flights with the  18" motor ( four strands of  3/16" rubber, each strand is 18", prop hook to rear peg is 15"), the third flight of which, was a 21 second, one and one half circle, with a perfect level solid flight, on 675 winds, and for only the second time (the last time was with the 22" Sig Cabinaire), we got a perfect and best landing right on the astroturf strip of the "Wicket" of the Cricket field.  This was a perfectly "greased" textbook landing, where the Speedster was coming in low and level and straight down the runway,  nice and slow and almost hovering there, and touched down both front wheels, and rode on them for about 10 feet, just the front wheels down, as the prop was winding down, til finally the tail wheel came down, and it then traveled even further for about 7 feet, (all straight into the wind), on all three wheels, to a nice smooth decelerating stop, and sat there with the prop still spinning for about 5 seconds til the last of the rubber ran out.

Flight #1     Started with the  18" motor ,   675 winds  14 sec   1 1/2 circles  really porpoising,  moved elevator tabs down for next flight
Flight #2     675 wilnds  9 sec  flies low one full circle and lands softly at my feet!!  - moved elev tabs to neutral
Flight #3     675 winds   21 sec    1 1/2 circle   PERFECT LANDING ON THE RUNWAY   -    took a little weight off the nose to get more height
Flight #4     675 winds  14 sec  , launched further north,  too much porpoising, put weight back in nose for next flight
Flight #5     675 winds   20 sec   one full circle, perfectly level flight, lands softly right in front of me.
Flight #6     675 winds  8 sec  3/4 circle,  forced down coming into the wind,   too high of a launch angle
Flight #7     I changed the motor to the  20 1/2" motor.   675 winds  22 sec   1 1/2 circle     Big porpoising slow flight   BIG STRAIGHT DOWN PORPOISE CRASH UNDER POWER,     (I found out later that I had bent the prop wire shaft right beside the back of the hub.)
Fllight #8     I tried adding noseweight and down elevator tabs, to counter the porpoising, but this Flight went nowhere really - The prop shaft was bent right behind the prop hub !!

PICS     9325   9326   9327   9329

Continued next reply.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on June 10, 2018, 03:53:35 PM
REARWIN SPEEDSTER 30"          JUNE 3 2018          FLIGHT REPORT        
(cont. from the above Reply)

     I put in a new bigger motor ( 20 1/2" ), for the seventh flight - it got 22 seconds on a wild roller coaster big porpoising flight of one and one half circles, on 675 winds.   The rubber seemed to lose its strength out in the humidity, right after that.
     The skies were becoming overcast and we could see the rain clouds coming,  so we packed up and walked back to the apartment building, just as the rain was starting ... rained pretty good but stopped 40 min later and Trapper got his big walk in.  Temp now at 9:35 AM was  64 deg F (feels like 72),  Winds 4 mph from the East, gusting to 7 mph, and 83% humidity.  Going to rain off and on all day.  Got my flyin' in - now its time to do some actual modelling work on jig construction for the wings installation on my Abatross D5  18" plane.    I got some good tips on how to go about it.   I'm itching to get at it.    :)
Get out and Fly !!     :D

Pics     9328   9331   9332   9333   9330

PS  The eighth flight went nowhere ... ?   I found out what the problem was (duh) when I got home - the prop shaft was bent, and the plane was "rattling" in flight (thrust button was never glued in also.)

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on August 23, 2018, 10:21:20 PM
REARWIN SPEEDSTER 30"  FLIGHT REPORT Thur Aug 23 2018

     I Just had one of the best days ever with the Speedster (another wild and whacky day at the tight Cricket Wicket flying field),  especially since I brought spare prop shafts and all the tools in order to keep going ...
     Weather  -  leave apt 8:10 AM 57 deg F (feels like 55),  Winds from the West at 7 mph gusting to 11 mph, 82% humidity.
     We did a lot of flights and a lot of repairs between flights.  Broke one motor and two bent prop shafts - good thing I brought three spare prop shafts and lots of motors, and a spare  9 1/2"  grey, oval-bladed, "made in Japan" prop, in case I broke the kit supplied, black, high torque, (squared blade ends),  9" prop.
     I went from a max of 180 hand winds and a max flight of 8 sec, on a 13 1/2" motor, on the previous trimming flights two days ago, to now, where I  went right in with 300 stretch winds on the stooge, and with a lubed and pre-stretched four strand, each strand 19 1/2" ,  3/16" rubber motor ... after breaking that first shorter motor after one flight.  The rear motor peg has been moved forward one bay, and the prop hook to rear peg distance is now  13 1/2".
     I had 13 flights (and 12 pics) - longest flight 22 seconds - and managed to keep the circles well within, the mature tree trunk-studded, outer white line circle perimeter, of the Cricket field in Jackson Park, Windsor, Ontario, Canada.  We got there early while the grass was still long and wet with dew (good thing I brought a big towel), as the parks people will be mowing it today.

Flights # 1 to #6 of 13           Pics #1 to #6 of 12

FLIGHT #1     300 winds  10 sec    pic 0331
Broke 13 1/2" motor on winding for next flight  - replaced with  a lubed and pre-stretched four strand, each strand 19 1/2" ,  3/16" rubber motor.
FLIGHT #2      375 winds  14 sec    One full circle, ran out of rubber sitting up high about 15 feet up, and spit out the prop block, and proceeded to swoop down, and just climbed up enough to avoid a hard crash.      pic 0332
FLIGHT #3     375 winds  18 sec,  1 1/4 circle,  ran out rubber 8 feet up, spits out the prop block     pic   0334
FLIGHT #4     375 winds   9 sec   stalls low,  half circle, soft landing.
FLIGHT #5     375 winds   14 sec    one full circle, block pops out 8 feet above ground, soft landing,  bent LG
FLIGHT #6     375 winds   10 sec     3/4 circle, climbing and stalling into the wind, hit hard on landing, both LG wire bent.  

Pic #1     0331     Going left at the tree line, past the north end of the pitch
Pic #2     0332     Completing 3/4 of the circle, replica Spitfire is in the background ( the replica Hurricane is hidden by a tree ).
Pic #3     0333     Morning rising sun.  Model is in lower right.
Pic #4     0334     The sun is glinting off of the Speedster, way out past the pitch, and to the right of center, and half way up the trees - and its glinting off of Trapper's fur too.
Pic #5     0335     I had to cut a hole in the tissue between the rear motor pegs, to get that broken motor ball out with heavy duty needle nose pliers - no damage ...
Pic #6      0336     Flight #6     3/4 circle, stall high into the wind, crashes into the ground hitting hard ( I bent back the bent landing gear wire ).

Continued on next reply.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on August 23, 2018, 10:34:37 PM
REARWIN SPEEDSTER 30"  FLIGHT REPORT Thur Aug 23 2018

continued from previous reply,

Flight #7 to  #13 of 13        Pics  #7 to #12 of 12

FLIGHT #7     375 winds   7 sec     fluttering prop block was loose - discovered that I had a BENT PROP from previous hard landing, and one of the rubber loops had come off the Crocket hook.    
FLIGHT #8   375 winds   20 sec  one full circle, turns right at the end, prop block ejects at 16 sec, gllides down for fnal 4 seconds.
FLIGHT #9     375 winds   16 sec  full cicle and perfect landing at my feet, but I had bent the prop shaft slightly but did not notice til next flight.  pic 0337
FLIGHT #10   420 winds   7 sec  went nowhere rattling out like a "drilling woodpecker", because I had bent the prop shaft.  This landing under such power bent both landing gear wire (easily straightened).
2ND NEW PROP WIRE INSTALLED
FLIGHT #11     420 winds   22 sec   prop block ejects at 20 second mark, 10 feet up in the air, and then goes straight into the grass hard and nose first  =   NO DAMAGE !!  
FLIGHT #12      420 winds   18 sec                     pic 0341
FLIGHT #13       450  winds   16 sec     full one and one half circles     pic 0342            

Pic #7      0337     Cruising along left above the tree line.
Pic #8      0338     Coming straight at me.  Spit in the background.
Pic #9      0339     Me Trapper plane stooge pack towell etc.
Pic #10     0340     Flight # 11   Flying through the morning sun disc.
Pic #11     0341     Flight # 12    Dive bombing straight down -  just left of the center trunk - after running out the prop and sitting high and spitting it out and off the plane
Pic #12     0342     Flight # 13     Nice climbing attitude into the Westerly wind.

Starting to get tooo windy ...

Got home at  10:00 AM   72 deg F (feels like 79),  Winds from the West at 11 mph gusting to 16 mph,  60% humidity.
     Now I have to figure out how to stop it from spitting the nose block and prop, completely right out of the plane and off the rubber   ??? ???    , when it runs out the rubber ... ?
     At least I came home with no damage on the Speedster.   :)

Get out and fly ...   8)

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on August 24, 2018, 06:06:10 PM
REARWIN SPEEDSTER 30"       FLIGHT REPORT        Fri Aug 24 2018

     This morning Aug 24 2018 was the best overall flying session with the 30" Rearwin Speedster.  All of these flights this morning ran out the rubber and kept the noseblock on and landed softly on the downwind leg.   I used two thin strips of green masking tape to hold the nose block onto the infill planked fuse nose.   The Crocket Hook never came off of the prop shaft hook - the prop shaft hook opening was a tight snap fit, into the hole in the Crocket Hook.
     Weather  -   left apartment 7:50 AM   54 deg F (feels like 54),  Winds out of the South 4 mph gusting to 6 mph, 94% humidity     -   back home at 9:20 AM   68 deg F (feels like 79),  Winds out of the South 6 mph gusting to 9 mph,  83% humidity.   The tissue covering was wet and wrinkled all morning from the heavy humidity and evaporating heavy dew fall, again.

Flights #1 to #4 of nine               Pics #1 to #5   of eleven

Flight #1    375 winds  14 sec, perfect flight on wide  3/4  circle and soft landing while staying 5 feet above the ground the whole way.
I ADDED MORE LEFT RUDDER TAB FOR TIGHTER CIRCLE.
Flight #2    450 winds   16 sec, tighter turning  1 1/2 circle, soft landing, bent LG wire just a little. 
Flight #3    525 winds    20 sec,   2 1/8  circles of the same tighter turns, perfect soft landing, no bent LG wire.
Flight #4    525 winds    25 sec,   2 1/2 tight circles and soft landing down wind no bent LG  --   I launched way too high, splendid recovery from a high stall then swoop to the ground and rising back up into the rest of the normal flight

Pic #1     0343     Wide 3/4 circle staying 5 feet above ground.
Pic #2     0344     1 1/2 circle flight.  Stooge at bottom of pic.
Pic #3     0345     The money shot.
Pic #4     0346     Flying right banking left, Spit and Hurri in background.
Pic #5     0347     Coming right at us on left bank.

continued on next reply

Get out and fly ...   :)

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on August 24, 2018, 06:15:22 PM
REARWIN SPEEDSTER 30"   FLIGHT REPORT      Fri Aug 24 2018

cont. from above reply

The rear motor peg was moved ahead one bay.  I was only able to get 450 winds on the shorter motor (13 1/2"), but now, with the  19 1/2"  lubed and pre-stretched 4 strand  3/16" motor,  I got up to 600 winds.

Flights #5 to #9    of 9               Pics #6 to #11    of 11

Flight #5     525 winds    22 sec,    2 1/2 circles, perfect soft landing down wind, no bent LG.  
Flight #6     570 winds    26 sec,   2 3/4  circle, soft landing.
Flight #7     570 winds    28 sec,   2 1/2 circle,   glided straight out at end of rubber power, soft landing.
Flight #8     600 winds    33 sec,   3 1/2 tight circles, runs out the rubber, soft landing, no bends.   The Speedster seems to climb faster against the wind going up in high tight circles.    
Flight #9     600 winds    33 sec,     4  little circles, runs out the rubber, keeps the prop, soft landing, no bends on LG wire.

Pic #6     0348     Turning perfect left circles all morning.
Pic #7     0349     Climbing left.
Pic #8     0350     My setup on the "Pitch".
Pic #9     0351     Steep turn coming into the headwind.
Pic #10     0352     Winding Stooge is bungie corded to tent pegs in the grass,  above and left of Trapper.
Pic #11     0353     Solid flyer.

Pretty darned good flights for me, considering I only had one 34 sec, one 30 sec, and one 29 sec, before today.   Today's top flights were 33, 33, 28, 26, 25 seconds.

     This Speedster was once christened "a flying piece of furniture" ...

Get out and fly ...   :)

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on August 24, 2018, 08:29:40 PM
Your perseverance is paying off Richard. I think the Rearwin has a lot more performance up it's sleeve.

The moved peg seems to be helping and has also probably improved the glide and landings.

john


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: glideher on August 25, 2018, 12:09:09 PM
beautiful model in deed and perfect size, love your dog too :)


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on October 03, 2018, 04:44:47 PM
REARWIN SPEEDSTER 30"  WED OCT 3 2018 FLIGHT REPORT
Morning Flights

     After getting three perfect little flights with the Speedster last night in the dark - all three very low tight circles by the way -  I was looking forward to the low wind this AM, because the forecast for the next week is too windy.  I walked the dog first and it was true - low wind.
     I left the apartment at about 9:30 AM, and headed out to the Cricket Wicket in Jackson Park,  with Speedster in hand, and a film container of clay weight,  one little towel,  a camera,  and a pencil and cardboard for log notes, and my index finger winder  -  it was overcast and cloudy with the sun trying to melt through -   57 deg F (feels like 55),  88% humidity, and winds blowing  6mph  from the South, gusting to 9 mph.  
     I made ten flights starting at 200 finger winds up to 250 finger winds - shortest flight was 9 seconds - longest flight was 23 seconds.  No damage and no gurney - it is nice to have long grass.  All the flights were nice circling left and soft landings, running out the rubber, so soft, the nose block did not even have to pop out.   No bent prop wire either.  I saw a grass mower mowing grass on the way in, and they were all working on paving the trails, some big shots rolling in, but I got away with it, and never got caught.   After the fifth flight today, I took off the left on the rudder tab, and bent it back to zero.  It widened the circles out perfectly.
    Winds were out of the south, so I launched on the south side of the Wicket towards the north, down wind.

Flight #1     200 winds   10 sec    15/16 circle   flew perfect and slow and floating coming back into the wind
Flight #2     220 winds   9 sec    one full circle  right to me landing 2 yards short
This plane really wants to land from where it was launched!
Flight #3     220 winds   14 sec   1 1/4 circle,   nice and lazy flight downwind and straightening out at the end for the last  quarter circle.

These flights were all very scary and low.   I have to wipe the dew water drops off of the prop and plane, and the tissue is saggy from the himidity.

Flight #4     230 winds    9 sec   1 1/8 circle     It turned left very quickly into the circle and came screaming back over me rightover ny head.

I now moved to a new launch postion on the East side of the Cricket Wicket.

Flight #5     230 winds     9 sec     1 1/2 circle     It went screaming low left on launch almost hitting the ground and back right over my head low -  this was too tight of a circle.

LASTWOODSMAN
Richard

continued on next reply


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on October 03, 2018, 04:49:10 PM
REARWIN SPEEDSTER 30"  WED OCT 3 2018 FLIGHT REPORT
morning flights

continued from previous reply

I put less left on the rudder tab, and put it back to neutral.

Flight #6        230 winds   17 sec  11/16  circle   It now flew with a little wider circle and at a good height.     -  a most perfect, slow, soft landing into the wind.

The sun is out now.

Fllight #7      240 winds    19 sec    3/4 circle    it went out nice and high and slow, runs out the motor, and straightens ou to the right, straight South West.
Flight #8       250 winds     11 sec     9/16 circle   For some reason it went straight out too far at the start.
Flight #9        250 winds   23 sec      1 1/4  circle   BEST FLIGHT OF THE DAY
Flight #10     250 winds      12 sec   just over one circle ,  as it flew right over my head!

I decided to call it quits and not get too greedy, as all of the people were getting in the park now, and I could hear the murmuring laughter of the thirsting Gods of Free Flight, and I returned home at 11:00 AM.   The temp was now 61 deg F (feels like 61),   88% humidity,  and winds blowing from the SouthEast now at 7 mph, gusting to 11 mph.   Truly great weather for the beginning of fall for a small park flyer like me.  ;D :D :)

 Get out and fly

LASTWOODMAN
Richard

The End of the Morning Flights


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on October 03, 2018, 04:53:21 PM
REARWIN SPEEDSTER 30"  WED OCT 3 2018 FLIGHT REPORT
Afternoon Flights

     There were not a lot of great pics from the earlier morning flights, so I grabbed the plane and Trapper and off we went again to the Cricket Wicket at 1:00 PM.   The winds were now blowing  12 mph from the South,  gusting to 17 mph (too windy, but since the grass was thick and tall ...)  72 deg F (feels like 72)  and 73% humidity.   Did three flights on the Cricket grounds - got a shot of the prop running out stuck up in the air, on final approach to the "Pitch", after which is glided down to what I thought was only the 4th perfect landing ever.   ??? ???
      Plus we went for a few more flights up by the American baseball Diamonds, as all of the grass was very high and very thick, and three grass mowers now cutting it.  That is another six flights on top of this mornings 10 flights, so we had our fill, and I got a few more pics.  We meandered back home stopping in the shade and chatting it up with some parks going citzens.   Beautiful day after the sun melted away the clouds.  Trapper was happy just laying in the cool grass and shade and wind, on this early fall day, with the trees just beginning to turn colors.  No gurney needed, and no damage.   ;D ;D

Pic #1 prop runs out high in the air
Pic #2 glided down to a stop on the Pitch
Pic #3  closeup

Get out and fly.   :D

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on October 04, 2018, 09:09:42 AM
A good reward for your persistence Richard. Trapper does look very relaxed.

John



Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: flydean1 on October 04, 2018, 03:42:47 PM
Richard,

Your efforts with this airplane are a great example of persistence, asking questions, adapting, changing things, but mostly, experiencing the joys of Free Flight (Always Capitalize) in a very limited area. 

This does not have the drama of a D Gasser streaking for altitude at 25000 revs plus.  Who cares!!!  Richard and Trapper at the Cricket Wicket having a good time.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on October 08, 2018, 10:42:18 PM
REARWIN SPEEDSTER 30"  Early Fall Flights  Oct 8 2018

      Thanks John and Dean -  you guys know I always have to go flying if the rare opportunity is there.   I have already beaten the heck out of this plane, why not more ...
     This could be one of the last of the calm (relatively) days when all factors come together (not that often) - no cricket players and not too many people out in Jackson Park in this heat wave (first of three days heatwave) - at least no one standing in the blazing sun (except some nut flying model planes in the direct heat), and no construction either (Canadian Thanksgiving Holiday), and they actually did not mow the grass in the Cricket Wicket - very long thick grass (I remember the short hard as a rock grass in the drought part of summer).   At  3:00 PM  the temp was  82 deg F (feels like 100 deg F),  70% humidity,  and winds from the South at  8 mph, gusting to 12 mph.  
      After three flights, I knew I was losing power - one of the rubber strands was broken.  Quick walk home, changed the motor and went back out.   Very hot summer day - 220 to 230 hand finger winds in the shade of the big full grown trees,  and 10 to 14 second flights  -   about 14 little flights.

Pic #1     612     Steep glide descent
Pic #2     613     Sun lit flight above the trees
Pic #3     614     The crash that broke the tip of the right rear wheel pant off
Pic #4      615     Far away flight
Pic #5      616     Straight in for a soft landing
Pic #6      617     Climbing left

The fall colors should be the best for outside flying pics.

LASTWOODSMAN
Richard
cont next reply


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on October 08, 2018, 10:50:04 PM
REARWIN SPEEDSTER 30" Early Fall Flights  Oct 8 2018
cont from last reply

    One was headed straight for "THE" TREE trunk - just missed it gliding by on final, and lands on the hard  packed gravel parks road.  That wind really does some weird things up there.   ??? ???  I was throwing up lots of grass and that wind was always changing ...
     I busted the back tip off of the right wheel pant, which caused it to smash the longeron too.  More repairs  :(   but a few more last pics of me trying to smash her up in her final flights of 2018.
     Now I am thinking of which planes to build this winter, including a 30" glider and a bush plane (skis - the one that caught the "Mad Trapper of Rat River"), and which ones to have ready to go for first thing in the spring ...

Pic #7      618     Soft nose plant on landing.
Pic #8      619     Perfect blue sky flying left.
Pic #9      620     Just missed this tree.
Pic #10     621     Other view.
Pic #11     623     Coming around towards me nicely.
Pic #12     625     Going left away.

Hope the site Server change goes well  ::)  ... the time is looming ever closer.    :-\

Still time to fly ...   :D

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on October 25, 2018, 11:43:41 AM
REARWIN SPEEDSTER 30" Dumas kit Repair

I started working on the Speedster to get it flight ready.  More work infill planking and tissue repair,  and major work on the right landing rear leg.

Pic #1     0651
Pic #2     0652
Pic #3     0653
Pic #4     0654
Pic #5     0660

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on October 25, 2018, 11:51:28 AM
REARWIN SPEEDSTER 30" Dumas kit Repair

I also made a new rubber motor.   I actually flew 15 flights Oct 22 2018, and 8 flights Oct 24 2018.   I will post the fall flight pictures later.   Time to go flying right now ... wind is blowing 4 mph gust to 6 mph   45 deg F (feels like 43 deg f)  70% humidity

HAPPY HALLOWEEN   :o   ;D

Pic #1     0661
Pic #2     0663
Pic #3     0665
Pic #4     0684
Pic #5     0685

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on October 27, 2018, 01:49:42 PM
REARWIN SPEEDSTER 30" MON OCT 22 2018 FLIGHT REPORT
 
     This was another magical day today,  when all the required element variables were bestowed upon me from the Gods of Free Flight, including nice fall colors, today Monday Oct 22 2018, with the 30" Speedster, after repairs.
     At 1:00 PM the temp was 52 deg F (48)   7 mph gusting to 11 mph, and long, thick, uncut grass.  I got in five perfect flights, but I forgot the camera.   ???   Oh no!!    :o   Then then we went back home and ate and got the camera, and headed right back out at 2:00 PM and did ten more flights with the camera.  At  2:45 PM  the winds were 9 mph from the SW, gusting to 14 mph,  and  54% humidity.
     All flights were finger wound, and the max flight was 14 seconds on 270 finger winds.  The weather was cool and the rubber motor was noticeably weaker.
     I was trying to get in some nice fall pics, and not set any endurance records.   I got to show off to a retired female schoolteacher park friend (has a dog too), and she took a good pic of a launch for me.  She was quite impressed with the flights.

Pic #1     0689     Going left past the pitch.
Pic #2     0690     Speedster peeling off on launch
Pic #3     0692     Me, Speedster, Trapper
Pic #4     0693     Right over the  pitch going right.
Pic #5     0694     Going left above the Spit and Hurri in the distance.

LASTWOODSMAN
Richard                                                cont on next Reply


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on October 27, 2018, 01:59:53 PM
REARWIN SPEEDSTER 30" MON OCT 22 2018 FLIGHT REPORT

cont from the last Reply

     Today was a total of 15 flights, all finger wound.  The weather was cool and the rubber motor was noticeably weaker.  Flights were about 10 to 12 seconds, all flying 3/4 of a circle to 1 1/4 circle - the longest was 14 seconds on 270 finger winds, and a rubber motor of 3/16" rubber, four strands each 13" long, prop hook to rear peg is 13" also. Yes this is my favorite plane to fly ...  My record from stretch winding in a stooge with much longer motors, is 34 sec followed by two 33 second flights and further down the scale.
     The prop and prop block weigh 17.17 grams, the bare plane weighs 84.50 grams, and the rubber motor and 'S' hook weigh 6.47 grams. Total weight is 108.14 grams. The total wing area is 135.4 square inches. And the "wing loading" is 0.84 grams per square inch. This is well above the target of 0.5 grams per square inch, but this high winger STILL FLIES !!

Pic #1     0695     Going left, coming down.
Pic #2     0696     Just right of the orange leaves, going left.
Pic #3     0697     Plane on pitch facing right.
Pic #4     0698     Plane on pitch facing left.
Pic #5     0700     Right over top.

Get out and fly if you can - winter is coming soon ...

LASTWOODSMAN
Richard                                                          The end.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on October 28, 2018, 02:33:34 PM
REARWIN SPEEDSTER 30" WED OCT 24 2018 FLIGHT REPORT
FALL FLIGHTS

     This is the second of three flight reports in four days - MON WED THUR - good thing I flew these when the grass was long, because they cut the grass low on FRIDAY !!
     This turned out to be just like two days ago on Monday -  about the same temp and wind - and all conditions pretty perfect.   Winds were 6 mph gusting to 9 mph  and 50 degrees F,  and still the grass was not cut and was very long.
All of the flights were going well.

Pic #1     0705     Going left over the Pitch end.  The pic is dark because we were in the cloud shade.
Pic #2     0706     Flying left just above Trapper to the right.
Pic #3     0707     Flying left in the shade.
pic #4     0708     Good sky, flying right overhead.
pic #5     0709     CLIMBING UP !!  best pic

LASTWOODSMAN
Richard                                                  continued on next Reply


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on October 28, 2018, 02:40:01 PM
REARWIN SPEEDSTER 30" WED OCT 24 2018 FLIGHT REPORT
FALL FLIGHTS

Continued from previous Reply

      I got in 7 flights and then broke the rubber    ???  (fully wound at close to 270 turns),  while winding for the 8th flight.    I should have changed the rubber motor after 20 flights ... or less   :P
       The first two flights were circling left and DESCENDING DOWN under full song power   :o  , into the, thank goodness, long thick grass.  Luckily no damage.   That was close !!!   I thought it was just a gust of wind that caused that to happen, and when I looked closer, I discovered why.   While doing the tissue repair and handling of the plane, I had bent both elevator tabs full down,  by accident !!!    I fixed that up right away and now it was flying fine.    You really have to check everything quite thoroughly before flying (and after each landing), wiggling struts, etc.      
     In the last pic you can see the broken rubber motor coiled up in a big knot at the rear of the fuse.  You can also see broken tissue and tissue bulging out from the rubber knot.   Luckily, no wood was broken.

Pic #1     0710     GOOD FALL COLORS  -  going left   best pic
Pic #2     0711     Undershot through the translucent covering
Pic #3     0712     The grass is STILL DEEP - they never cut it yet ...
Pic #4     0713     Broken motor coiled up in a big knot.

Seven minute video
The Four Seasons - AUTUMN - by Antonio Vivaldi
here
https://www.bing.com/videos/search?q=fall+by+vivaldi&&view=detail&mid=4359858572CF283A894B4359858572CF283A894B&&FORM=VRDGAR

LASTWOODSMAN
Richard                                                                                The End


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: flydean1 on October 28, 2018, 10:56:49 PM
Good reason for ALWAYS winding with a stooge and tube--even on low wound gentle flights.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on October 29, 2018, 07:20:47 AM
REARWIN SPEEDSTER 30" THUR OCT 25 2018 FLIGHT REPORT
FALL FLIGHTS

This is the third of three flight Reports MON WED THUR in four days!
     I repaired the tissue overnight, and Lo and Behold, the next day today Thursday Oct 25 2018, the weather again was "flyable" and a perfect day again.   At 1:05 PM  it was  45 deg F (fees like 43 deg F) winds blowing 4 mph from SW, gusting to 6 mph, and  70%  humidity.    That makes 3 out of the last 4 days, of almost unheard of weather and other factors coming together for some real flying.
     I made several flights. 

Pic #1     0719     flying left of the Orange leaves
Pic #2     0720     left side of the "V"
Pic #3     0721     banking left above the Spit and Hurri
Pic #4     0722     high banking left
Pic #5     0723     right over the top of the end of the pitch
Pic #6     0724     missed the launch pic

LASTWOODSMAN
Richard                                 cont on next Reply


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on October 29, 2018, 07:24:15 AM
REARWIN SPEEDSTER 30" THUR OCT 25 2018 FLIGHT REPORT
FALL FLIGHTS

cont from last reply

     Well, that may be it for good flying conditions as it is getting much colder here now - frosts overnight.   The leaves seem sort of late for changing color, but maybe we will get that "Indian Summer" of warm temperatures and fuller, more vibrant, fall colors, still to come.    We are forecast, by the Indians, for having a mild winter this winter, because the conifer trees are not heavily laden with cones ...  They were right about the hard, cold, snowy winter last winter.
     Well, if we don't see you again this season, "So Long" from the Cricket Wicket grounds, of Jackson Park, Windsor, Ontario, Canada.

Pic #1     0725     steep glide down for landing
Pic #2     0726     thick plush long grass
Pic #3     0727     another shot out the end of the Cricket Wicket
Pic #4     SKELETON GLIDER
Pic #5     SKELETON SPEEDSTER  2   I thought I saw something  ghostly and shadowy, for a split second, sailing along right under the Speedster as it flew right over my head.   Amazingly, the still pic from the digital camera caught the image ...   :o   ???

Fly all you can ...

And Happy Halloween!

LASTWOODSMAN & Trapper
Richard   &  Bird Dog                                  The End


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: Crabby on October 29, 2018, 08:32:28 AM
  I got to show off to a retired female schoolteacher park friend (has a dog too), and she took a good pic of a launch for me.  She was quite impressed with the flights

You are one charasmatic fellow, Richard. I always wind up looking like a nutty professor at play.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on October 29, 2018, 08:56:37 AM
You have certainly flown the tissue off your poor old Rearwin Speedster Richard. It probably needs a rest - unless of course you add skis to it?

John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on October 29, 2018, 11:35:24 PM
     Well, boys - the Speedster can rest for the winter now - no more big surgery ...
     As far as skiis go, there is only one skiplane that I have in mind.  It was flown by the famous pioneering Canadian Bush Pilot - "Wop" May.   That skiplane was used, when the best, dog sled team-equipped, Indians and Trappers and Police, could not catch "The Mad Trapper of Rat River", way up in the Northwest Fontier SubArctic near the border of the Northwest Territories and the Yukon, in the middle of winter.    That airplane is the Bellanca CH-300 Pacemaker.   A good topic for a cookup cold be skiplanes or bushplanes ...
     The logo for GoldenAgeReproduction kits is a Bellanca.  I am not sure which model Bellanca it is.   I could be enticed into such a cookup if there exists a laser cut kit ... No?    OK, OK,   ...  a good plan somewhere.

Pic #1      BELLANCA CH 300 PACEMAKER
Pic #2      BELLANCA CH-300 PACEMAKER
Pic #3      BELLANCA PACEMAKER 4 A
Pic #4      BELLANCA PACEMAKER 5
Pic #5      BELLANCA
Pic #6      WOP MAY INFO

Here is a good link to one of many stories about "The Mad Trapper of Rat River"  (Rat meaning the "Muskrat" that was, and still is, trapped for  its luxurious fur)    http://nwtandy.rcsigs.ca/stories/rat_river.htm

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on November 09, 2018, 01:10:46 PM
REARWIN SPEEDSTER  30" FLIGHT REPORT  NOV 4 2018

     Seeing as we woke up to a wet snowstorm and a half inch of wet snow slush on the cars,  it probably really is the end of the flying season.    :(     But I did actually go flying twice since last report of Oct 25.   It has been raining  so much lately, and cold and windy,   ???  and the leaves have really fallen now.
      My Speedster is trimmed out,  and the nose is completely infill planked now -  which is great for holding the plane steady, with a strong forceful grip around the solid nose, in order to put in 270 finger winds quite quickly, if you are just playing around in your local park, and not trying to set any endurance records, or personal bests.  
     It is really easy for me to do, when taking Trapper for a walk, it is easy to just grab the Speedster (and also and a film container of modelling clay),  and walk out to the park for some flying fun from just finger winds on that  four strand  3/16" thirteen inch rubber motor  - especially when the wind is low.
      Since my last report on Thurs Oct 25, it was 10  days for some good weather to arrive,  which came on Sunday Nov 4 2018.    
At 9:15 AM the weather was  41 deg F (feels like 37),   winds blowing from the East at  4mph  gusting to  7 mph,  81% humidity.
     I got in five flights, (the first four were good), the last of which,  crashed after a sideways gust of wind CATAPULTED the Rearwin left into a tight descending spiral dive, hitting the long grass under full power, and emitting that fateful "snapping crack".
     The flights all went nice starting at about 10 sec and up to a nice 16 second fourth flight floating ever so softly into the wind for a nice landing - my buddy and his dog saw it, and he took the pic of the fifth flight launch where you can see how hard that cross wind blew the plane over, into its downward crash.
      
Pic #1     0751     Yellow leaves.   Yellow Lab.
Pic #2     0752     Speedster diving down, but it recovered.
Pic #3     0753     Flying halfway through a nice circle.  
Pic #4     0754     Shot of fall colors.
Pic #5     0755     Tree top level flight.
Pic #6     0756     BAD Crosswind/Downwind LAUNCH and CRASH

     Upon running up to the crashed Speedster, I saw something quite peculiar.  She was sitting on her legs anchored in the long grass,  with the prop spinning quite fast, and making a lot of noise,  and the plane was shuddering and shaking quite violently and rythmically.  :-\    And then the prop wound down to a stop, and I saw the reason why.    One blade of the black 9" High Torque, squared blade tip, plastic prop, that Dumas supplies, that one blade of the prop was broken right off near the base,  3/8" from the shaft, and the prop was spinning with only one blade.   I thought the sound of the snapping crack was not the sound of balsa wood breaking.    I think the cold, (and old plasitc fatigue), contributed to the propeller's  plastic brittleness.   I think that is now three broken black 9"  props, (and bent prop shafts),  that I have been stealling from other kits (a Cardinal sin if ever there was one).   I need to buy a buNch of these nice props - they are not listed on the Dumas site - anyone know where to get them?

     Arriving home at  9:55  AM from the Cricket Wicket,  the temp was now 45 deg F (feels like 41),  Wind blowing from the East at  7 mph, and gustng to  11 mph , 81% humidity.

     I also got in one more flying session, albeit short, four days later on Thur Nov 8 2018 - pic and that flight report is next.

Winter is here,   rubber is weaker ...

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on November 10, 2018, 05:20:15 PM
REARWIN SPEEDSTER  30"  FLIGHT REPORT NOV 8 2018 Thursday

     Today this morning Sat Nov 10 2018, we woke up at  7:25 AM  to a very cold  23 deg F (feels like 9 deg F) - the cold is more penetrating here with the high humidity.

     Well, the last flights posted above on Sunday Nov 4 above resulted in a broken 9" kit supplied "high torque" black plastic prop, with squared blade ends.   
     Now, on Thurs Nov 8 2018,  I have substituted a gray 9" helical (is that the right term?) plastic prop, and a new 4 strand 13" long  3/16" rubber motor, and tested it out.
     The forecast was calling for the wind to die down -  at 8:45  AM it was  11 mph gust to 16 .   At  11:45  AM  it was  39  deg F (feels like 33),  the wind was  8 mph from the NW,  gusting to 12 mph, and 60% humidity, so of course, we headed out!!  Bundled up of course.
     I had a total of four good flights - the fifth flight was very low and eventually hit the long grass - no lift from the wings - it must be getting too cold or not enough torque - too soon to tell if the prop change made any difference.
     So ... we packed it up, as I did not want any more landings with a lot of turns left on the prop, and the wind seemed to be picking up.
     We were done at   12:35 PM  -  the winds now  11 mph from NW gusting to 16 mph, temp 41 deg F (feels like 37),  52% humidity.  It WAS too windy anyway - anything over 8 mph is too much wind.

Pic #1     pic of plane and new prop and broken props.  I like the looks of the black prop with the color scheme, better than the gray one.
Pic #2     0763     Speedster with the new  9 1/2" prop, newly paved asphalt park trail
Pic #3     0764     flying under menacing skies
Pic #4     0765     happily flying through the soup of air
Pic #5     0766     coming down for a landing in the thick grass
Pic #6     my flight line supervisor, Trapper, sunset lit pic

And a winter song ...

ANTONIO VIVALDI - L 'Inverno (Winter - full version )  9:54 minutes here
https://www.bing.com/videos/search?q=winter+vivaldi&&view=detail&mid=509E7A2F238D8AE6789A509E7A2F238D8AE6789A&&FORM=VRDGAR

     So long again   :D    from the Cricket Wicket in Jackson Park in Windsor, Ontario, Canada.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: Balsa Ace on November 11, 2018, 06:56:34 AM
I enjoy the photos in this thread,Richard.

Scott


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: Dan Snow on November 11, 2018, 11:03:37 AM
Love the pictures and the reports Richard.  This past week has been high winds and the last two days heavy smoke from the fires to our north.

Regarding the props, I would give Dumas a call. When I called them about missing parts in the Beaver kit, they were very helpful and I had the missing balsa in hand in 3 days. I'm thinking of calling tem myself as I'll need a prop for the Doodlebug at some point.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: rgroener on November 13, 2018, 01:00:31 AM
Richard, great pics! Referred to the second picture, you have the best protected Rearwin Speedster ;D

About the first picture... On the screen its Flightgear and you are flying in the area of Sion (LSGS /LSMS)?

Roman


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on November 13, 2018, 02:23:08 AM
You're establishing a flight record with your Rearwin Richard and your photos are consistently good. Trapper must have earned his wings by now as a guardian.
I guess it will be snowing there soon.
John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on November 15, 2018, 03:54:06 PM
REARWIN SPEEDSTER  30"  FLIGHT REPORT  NOV 4 2018

     Hi John - seeing as it is REALLY snowing now today,  I might as well submit the final flight report (attempt), of early yesterday afternoon, Wed Nov 14 2018.  
     At 12:35 PM, the temp was  30 deg F (feels like 25), winds were only 4 mph from NW, gusting to 7 mph, and 55% humidity.
     Got in five (sort of) flights, the last one was a  "Doozy".  The first three were steadily losing height from a flat launch, and zinging into the long grass, at speed, with many turns left on the motor.  By the time my Digital camera acquired the shot (a couple of secs holding down the shutter button), the plane was on the grass.   Fourth flight I finally got one to make a half circle.   And the last fifth flight -   I cast up up high, turning left but swooping down on a long arc, looking like it was going to smash straight into the Pitch of the Cricket Wicket - and it starts to recover and to try to transition to climb on the down swoop -  but it was too low, and hits the runway HARD like a slow, skidding,  touch and go.  I could hear the initial hit of the outward-splaying, and compressing, of the wire reinforced, springy landing gear, as it settled pretty solidly on a one or two foot long skid, loading up the spring force of the wire, and as the bottom of the fuse bounces ever so slightly, off of the artificial turf,  and then with the LG wire springing back down,  thereby pushing and launching the plane airborne again, all the while flying forward, and it bounced up and popped up about a foot and a half from the artificial runway,   ;D   and the plane flew at that height out towards the end of the Pitch on the grass to the left, crashes down, and finally rips off the left wheel pant, that was loosened up from the hard touch and go.   Time for a hibernation rest now.   This could have been way more disastrous.  ???
     So here are the last pics of the season (not the greatest ...)   My rubber motor seems to freeze up quickly on the walk out there.  I wonder how the kids flew in the winter in the olden days ...

Pic #1    0817     Down on the grass too quick for the pic
Pic #2    0818     Just right of the Spit, glidepath downwards
Pic #3    0819     Fourth flight - soft landing in the leaves
Pic #4    0820     Fifth Flight -  right after the BOUNCE back into the air from a hard touch n go, right on the artificial "Pitch"
Pic #5    0821 ROT & SNIP     Final resting spot - broken off left wheel pant strut beside left wheel on grass
Pic #6    0829     She looks very "non-scale",  with just a bare  1/32" left side LG wire ...

The End

Aufwiedersehen, Frohliche Weinachsten, und eine Gleichliches Neues Jahre
LASTWOODSMAN & Trapper   :)
Richard_


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on November 15, 2018, 04:56:06 PM
Back to the fire and the workshop for you and Trapper, Richard.
John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 08, 2019, 10:32:38 PM
REARWIN SPEEDSTER  30"  Dumas kit 326

REPAIRS AFTER NOV 14 2018 FLIGHTS

     Well, Nov 14 2018  was the last day flying the Speedster.   It needed some repairs that were left undone - until now that is - the unseasonably cold weather is breaking and spring could arrive now real quick.  I had better get the Speedster ready, as I will not be able to forgive myself, if one of those perfect days comes, and the plane is not ready.   So we took a break from the 20" Osprey Glider, and started on the Speedster repairs.

Pic #1      1582     Left landing gear trouser needs reinforcing and re-installation, like the right side that is already done.

Pic #2     1583     Underside view showing Landing gear wire.

Pic #3     1584     Mandrake and Bloodroot work patching up tissue areas.

Pic #4     1585     M and B clamp down two  1/16"  hard balsa planks together, that were just double white glued, and held between two larger pieces of balsa for the clamping.

     I am really starting to look forward to the early spring flights in our Cricket grounds, in Jackson Park, when the grass grows so high and fast, the City Parks grass mowers cannot keep up with cutting it  ...

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 09, 2019, 04:41:52 PM
REARWIN SPEEDSTER  30"  Dumas kit

REPAIRS AFTER NOV 14 2018 FLIGHTS

     The landing gear must be able to withstand a dead stop crash, by distributing the force between the  1/32"  landing gear wire, bending half way down, and between the balsa structure and reinforcements.

Pic #1     1587     The mounting plank in the foreground is traced, for gluing.   Mandrake and Bloodroot try to straighten out the upper half of the Landing Gear wire, with the might of their Cyborg forearms.

Pic #2     1588     They have to bend the wire in different directions, to get it straight.

pic #3     1591     Bloodroot sets up a little  fixture/jig ,  for tricky gluing of the upper trouser edge, to the outline on the reinforcement plank lamination.

Pic #4     1593     The wood stained triangular balsa Trouser, is now double white glued to the reinforcement plank lams, and is solidly blocked up to dry.

     Mandrake and Bloodroot now take out the rubber motor out of the Speedster fuselage, to examine it for nicks and splits.

Pic #5     1595     Mandrake "When I stretch the rubber motor out, you pull the dowel"
Bloodroot  "Don't wrap that rope around your hand like that Drake -  it is FAI Tan 2 rubber."
Mandrake  "Never mind Blood -   Pull!"

Pic #6     1596      Mandrake "HELP" ...  "get me  out."
Bloodroot   "That's what you get."
Mandrake  "C'mon - I'm stuck!"
Bloodroot  "What are you looking for in there?"
Mandrake  "I think I got a broken nose - I'm cut and bleeding ..."
Bloodroot   "Oh suck it up soldier!  Hey, look, I got the dowel !!! "

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on March 09, 2019, 06:58:13 PM
 :D :D
John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 11, 2019, 12:02:48 AM
REARWIN SPEEDSTER  30"  Dumas kit

REPAIRS AFTER NOV 14 2018 FLIGHTS

Progress ...

Pic #1     1597     Test Fitting of the LH Trouser (on left) that has the new bare balsa lamination buildup reinforcement planking.   Both left and right side need those two extra thin strips on top.

Pic #2     1598     Only the first half of the Landing Gear wire (from the fuse), will be epoxied into the trough.

Pic #3     1599     Different view.

Pic #4     1604     Mandrake and bloodroot examine the strands of the rubber motor.    Mandrake is still mad and sulking (Bloodroot called him a "snowflake").   >:(

Pic #5     1606     Here is the broken off Left Hand balsa Trouser to work on.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 11, 2019, 01:06:32 AM
REARWIN SPEEDSTER  30"  Dumas kit

REPAIRS AFTER NOV 14 2018 FLIGHTS

Pic #1     1613     Mandrake and Bloodroot finish up the staining of everything wood.

Pic #2     1611     The trouser is all stained up and needs to dry overnight.   You can see I sanded in a "fuse body curvature" into the plank lam reinforcement.

pic #3     1607     The "Golden Oak" wood stain really brought out the color - and it seemed to reactivate the Krylon Clear Gloss I had sprayed on originally.   Test fit and look with the new LH trouser.   Both left and right trousers have the built up plank lamination extensions.

Pic #4     1608     It looks almost like fresh Krylon rattle can spray.

Pic #5     1609     The struts and fuse infil planking were also stained.

Pic #6     1610     Top view -  epoxy glue tomorrow after it all the stain and clear gloss dries.


LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: flydean1 on March 11, 2019, 09:59:52 PM
Richard you are a great example of persistence and the ability to "improvise, adapt, and overcome".


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on March 12, 2019, 09:00:32 PM
Agreed. All ready for another flying session at the infamous cricket oval.

Happy flying.
John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 13, 2019, 12:13:24 AM
     Thanks for the uplifting words flydean1 and John  -  very motivating for me.   :)   The stain I painted onto the old dried Krylon clear coats, not only reactivated it,  but it has not dried now in two days.  It is still very tacky and very sticky.   I have had it in the bathroom with the door closed and nice and warm for those two days, so I will wait further.
     In the meantime,  I think I will make a simple "table stooge" just for the Rearwin Speedster,  that I can just clamp down to my building board table ( plywood , screws ),  and try some test runs on these nice long, different sized rubber motors, that I already made up, and make notes of the prop run times.  
     Spring is just about to really break.  Red winged Blackbirds have been back for about 4 days.  The ground is still cold and hard and frozen in the mornings, and the dormant grass is still matted down flat, but we have some very warm weather coming up ...

Pic     1634     of the "sticky" Speedster in the "dry" room.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on March 13, 2019, 08:16:21 PM
Wind is the main hassle here. however I can duck across to the local park just before Sunset when it dies off usually and have a quick flight with a small (16"WS) Christen Eagle biplane. Not enough space for FF unfortunately.

John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 14, 2019, 12:04:17 PM
REARWIN SPEEDSTER  30"  Dumas kit

     Hi John.  High wind is always a problem here too.   :-\   And the high humidity, which can really cause your model to lose altitude and not be able to hold level flight when the tissue sags and wrinkles.
     It was up to 50 deg F yesterday Wednesday March 13 2019,  with fine mist rain all morning, then sun to evaporate that water, and the grass was getting fluffy again.  I got home at sundown with the dog  48 deg F (feels like 45) and the wind only 7 mph from the SE  and 87% humidity.   I did what you do John.   I grabbed the  18" Air Camper and the dog and headed back out into the twilight gloaming of the Cricket Wicket Oval for a couple of late evening flights    Five flights of 150 to 160 hand winds each -  got one good first flight of 7 seconds, perfect 7/8  circle left, then the tissue got saggier and more winkled, and the flights were going down into the grass from no lift, and it got too dark.   But I had to try it.   Here is a couple of lousy night pics.    At least it was in the air.   :)
     I then went home and made a simpleton   :-X  :P  table/bench stooge for the  30"  Rearwin Speedster.   Boy did it ever take a lot of drilling over and over to get the 1/16"  holes lined up on the vertical "ears", that hold the horizontal  1/16"  music wire, that holds the aluminum tube dowel of the fuselage, securely in the stooge for winding.

Pic #1     1640     In the middle just under the tree top line, going left.
Pic #2     1641     Descending too sharply.
Pic #3     1643     Flight Supervisor Trapper looking back
Pic #4     1648     Table Stooge -  gotta ink on those crosshair circles on the ears, to help find the hole.
Pic #5     1647     Another view
Pic #6     1646     Speedster in the Table Stooge

The Cricket Wicket Oval is approximately 130 yards by 110 yards.  How big is your little park flying field John?

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on March 15, 2019, 05:10:57 AM
I probably have around a 50m radius to fly in but need to watch out for the trees. The Christensen is really a Indoor Model and doesn't like more than the most gentle of breezes. It has a 5" dia prop driven by a geared coreless motor(about 8mm dia I think). Plenty of power but also stacks of torque. turns like a demon to the left and sedately to the right. I have it tamed somewhat with a bit of right rudder trim which helps. It's also very sensitive on elevator and excessive elevator slows it down. Unfortunately I can't easily lengthen the elevator horn and the simple 5 channel RC transmitter doesn't have servo adjustment - just reverse. it's almost like flying a small Camel. when on step it does fly nicely and my aim is to take off on the foot path through the park and land on it as well. I manage every now and then.

BTW I can't fly when it  is as dark as it is in your pics. :)

have fun
John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 16, 2019, 12:10:54 AM
REARWIN SPEEDSTER  30"  Dumas kit

ENGINE RUN SHOP TESTS

     Mandrake and Bloodroot are ordered to do Powertrain Testing and Evaluations, for Certification prior to the new flying season.   They pull out the old unused (for the most part) larger more powerful rubber motors from last year, to test in the Speedster anchored in the new Shop Bench Stooge they built.   The motors were wound almost to the limit of the winder handle not being able to physically crank in any more turns.   The different motor runs are charted in Pic # 4  .

Pic #1     1653     The motors and tools are readied for the testing.
pic #2     1650     The prop is timed while spinning.
Pic #3     1651     Nose block pops out at the end of the power run.
Pic #4     1657     Close up of the Chart of results.
Pic #5     1663     Mandrake and Bloodroot pack things up at the end of the work day.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 17, 2019, 01:46:01 AM
REARWIN SPEEDSTER  30" Dumas kit

LEFT TROUSER GLUED TO THE LANDING GEAR WIRE


     The trouser glued on pretty easily -   pushed onto the landing gear wire into the trough full of 5 min Epoxy.

Pic #1     1664     The left Trouser is ready for 5 min Epoxy gluing.

Pic #2     1665     Clear Epoxy down two thirds of the trough.

Pic #3     1667     The last third of the Landing Gear wire is free to bend on landing -  very easy to bend back.

pic #4     1669     The reinforcement planking sits flush to the fuse and the wing strut attachment at the fuse.

Pic #5     1670     Side view.

Pic #6     1671     Other side.  The reinforcement planks on the Trouser sits right on top of the fuselage infill planking, to distribute the force of landing hard.

     There has been a lot of work  :-\  and extra reinforcing on the landing gear and struts, to see if it can take a hard   :P  landing ...  now it is ready to try ...  we just need the motor and prop and check the balance, then to the park with the winding stooge ...

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 18, 2019, 10:59:03 AM
REARWIN SPEEDSTER 30" Dumas kit

REPAIRS ARE FINISHED AFTER NOV 14 2018 FLIGHTS


Pic #1     1677     Mandrake  and Bloodroot  haul out the Coffee Jar pillars used to check the balance.   There is one white round head pin, taped onto each lid, to rest the wingtips on.

Pic #2     1680     M and B check the balance point CG (center of gravity)as marked on the plan.    There is a small black dot on the upper rear spar of the wing, right beside the number 4 of the call sign.   Bloodroot waves the OK.  It balances right on the mark with the 12 inch motor in it.   

Beauty (?) pics of a war hardened, weary, repaired (more than once),  30" Rearwin Speedster, ready to fly once again.   

Pic #3     1672
Pic #4     1673
Pic #5     1674
Pic #6     1675

Now to the test glides ...

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 18, 2019, 09:25:16 PM
b]REARWIN SPEEDSTER[/b]  30" Dumas kit

FIRST FLIGHT REPORT OF 2019  MONDAY MARCH 18 2019

     After the above repairs and balance check yesterday, I knew the wind was forecast for about 6 or 8 mph max the next two days.   So at about 3:15 PM today, Monday March 18 2019,  I grabbed the Speedster and a film canister of modeling clay weight (in case I needed it), and I walked out to the Cricket Wicket.  The wind was blowing right through the trees which have no leaves yet.  The grass was starting to get fluffy, but was still dormant for the most part, and the ground dirt under the grass was moist and soft.
     The temp was 39 deg F (feels like34), the winds were 9 mph from the South West, gusting to 14 mph,  and most of all, the humidity was only  52%.   I made only two flights.   The first alongside the tree line near the stands, on the leeward side (didn't do any good because the wind just blew through the trees), that first flight into the wind, with 80 handwinds, with a level launch.  I wanted to see if it could hold level flight.  I got a perfect 6 second flight, to a perfect soft landing, and no bending of the landing gear.  There was a side aspect of the wind, and I could see the Speedster, with its big swooping wings, holding firm to the slight crosswind, and keeping a straight line until landing.   I was very happy, as I had not changed any weight or anything from last year, and it flew fine so far.
      Then I decided to try the second flight launching downwind along the trees on 80 hand winds.  Another perfect six second flight, and curving slightly left (like it always has), but a little harder landing, and only one wheelpant wire was bent a little at the ankle.  I have the very ends of the Trousers chopped off a little bit, where they meet the Wheel Pants.  This leaves enough room to easily bend back the Landing Gear Wire, at this "ankle point".   So we went home, as I forgot to put my Scandisc into the camera before I left, and I knew tomorrow Tuesday March 19 would be the only low wind forcast day for about a week.
     On the walk home I mishandled the plane and broke the top wing tissue, left side near the fuse - I just glued a new patch right over all the tears, and it came out fine, no shrinking even.
     Sorry, no in-flight pics, but I should get some tomorrow, and I should practise these flights in my real Winding Stooge.
     So, for what it is worth, here are a few pics of what my flying field Cricket Wicket Oval,  110 yard by 130 yards appx.,  looks like right now.
     The two Cooper's Hawks are back flying around, and the big early flocks of Robins are stoppping in on the huge area of "unsprayed" turf grass, which is Jackson Park, and the multitude of worms that provide their food.  The first Robins came about a week ago.

Pic #1     1691     Pic from NE corner of the Wicket.  
Pic #2     1692     Pic from SE corner of the Wicket.
Pic #3     1693     Closeup of Trapper and the grass depth.
Pic #4     1694     Pic from SW corner.
Pic #5     1695     Another pic from the SW corner - same tree
Pic #6     1696     Speedster with new wing patch.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: vtdiy on March 18, 2019, 09:40:40 PM
Wow, flying over grass! Looks good, and sounds good, Last Woodsman. Still a foot on the ground here and 4 foot high icy banks where I've plowed. No robins, though I hear a few bluejays. The Speedster is cool!


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on March 19, 2019, 06:10:13 AM
That will help end the cabin fever Richard. Good work. Glad to see that it is still flying well.

John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 19, 2019, 04:47:54 PM
REARWIN SPEEDSTER  30"  Dumas kit

SECOND FLIGHT REPORT OF 2019  TUESDAY MARCH 19 2019


     Well, I ran the dog at  8:30 AM when it was still  30 deg F.   Got home and kept waiting and wishing for the temp to warm up.  We could not wait any longer, and at 10:25 AM, I grabbed the Speedster and the dog and some clay and out we went to the Cricket Oval -  weather sunny, 36 deg F (feels like 36),  winds blowing only  4 mph  from the West, gusting to  7 mph,  and only  60% humidity !!   When we got home at noon, it was  39 deg f (36),  Wind 4 mph from the West gustilng to 7 mph, and 60% humidity.
     We got four good flying pics in six flights all on 300 hand winds, and all flights lasting from 13 to 15 seconds, all launched downwind and turning left for  3/4 circles up to one full circle, and landing into the wind nice and fairly softly, with only minor bends on the landing gear wire at the "ankle", that were easily bent back into position.  When winding for flight #7, I stretched out the rubber to see if the winds were coming along nice, and I had a big surprise at the motor that we already checked for nicks etc.

Pic #1     1704     30" SPEEDSTER MOTOR WRITTEN SHEET

Pic #2     1697     Launched downwind and turning left.   The first flight at full 300 winds was the best, because there were three older parks workers working on the diamonds in the park that were talking to me, and wanted to see it fly.   I told them I had to get in postion for a downwind launch, and we headed back to the Cricket Wicket.  One guy was whipping off the names of the planes surfaces.  It was a perfect 15 sec flight to the softest landing, teeters nose down for a few seconds, then up onto its legs, looking proud.

Pic #3     1698     Same as above.

Pic #4     1699     End of a nice soft landing.

Pic #5     1700     Close up -  notice the GRASS HEIGHT.

LASTWOODSMAN
Richard

cont on next reply


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 19, 2019, 04:53:34 PM
REARWIN SPEEDSTER  30"  Dumas kit

SECOND FLIGHT REPORT OF 2019  TUESDAY MARCH 19 2019
cont from previous reply

     The fourth flight was pretty scary -  from a bad launch pointing upwards at too high of an angle,   it flew way out up high, and tried going into its left turn,  and the wind drove it left and down into a long descending arc on its turn, that would have hit the ground, except those  135.4 sq inches of lifting wing surface kicked in and cleared the ground coming back into the wind, risilng for about 7 (seven) feet, and then to a slow descending landing into the wind.

Pic #6     1701     Flying right over the Spitfire and Hurricane Replicas in the background.

Pic #7     1702     The Speedster flies again in only its second season.  BEST PIC

Pic #8     1703     Started winding for the  7th flight and pulled out the rubber for a look at the knots -   time to go home.

Pic #9     1705     Believe it or not, this is what the motor looked like back at home -  one clean break, and three notches in the strands !!    ???   ? Must have been the cold??

Pic #10     Hello from my buddy up North.   :)

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: flydean1 on March 19, 2019, 09:34:09 PM
This is why you should always use a winding tube, even on low winds.  Are you reading this Monz?


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 22, 2019, 05:46:04 PM
REARWIN SPEEDSTER 30"  Dumas kit

NEW MOTOR INSTALLATION
        FRIDAY MARCH 22 2019

     The weather looks really promising  ;)   for the next two days maybe -  sunny and max wind of 7 or 8 mph and 46 deg F and 50 deg F.   Flying days like this don't come often   ???   , and the grass is soft and fluffy, half the stems are green and the other half yellow brown, and it is relatively long, as they did not mow the last cut of grass at the end of the year, last year.  Time now to install the  13" motor.   Mandrake and Bloodroot get to work at the Speedster Maintanance Hangar..  First they have to remove the current nicked and broken motor.

Pic #1     1725     Mandrake and Bloodroot, Cyborg Super Soldiers from the future, gather the tools needed.   The broken motor has an "S" hook.   Tools laid out are  a 1/8"  wooden dowel,  "Handy Twine" cotton string, a long "Extractor" tool made from a  1/8" dowel, some masking tape and a bit of twisted wire for a hook, for grabbing deep inside the fuselage - a most necessary  tool in the field,  and ... the new 13" motor (which has a Crocket Hook).

Pic #2     1716     Here Mandrake hooks the "Extractor" onto the "S" hook small hole, and pulls the rubber motor out far enough for Bloodroot to slide in the  2 1/2"  wooden 1/8" dowel, through the large hole of the "S" hook.

Pic #3     1716      Closeup of the above.  (not a great pic ...)

Pic #4     1720     With the dowel in place holding the end of the motor and S hook sticking out the fuse nose, Blood ties on a long piece of string, to the small hole of the S hook.

Pic #5     1723     With the prop block removed, the plan is to have Mandrake pull out the motor with the extractor far enough for Blood to pull out the dowel from the S hook.  Mandrake says  "When I pull out the motor, you pull out the dowel when I say OK, OK?'

Pic #6     1724    Mandrake   "Blood, you simpleton Cyborg - NOT YET !!  Get me out of here!"
Blood  "You said OK ...     Look, I got the dowel!"   ;D

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 23, 2019, 10:16:42 AM
REARWIN SPEEDSTER  30"  Dumas kit

NEW MOTOR INSTALLATION
         SATURDAY MARCH 23 2019

     Mandrake and Bloodroot worked late into the night, on the new motor installation. 

Pic #1     1726     Bloodroot sets the rear of the rubber motor into the slots on the rubber motor "Pushing Stick".

Pic #2     1730     Mandrake ties a length of string twine to the small hole of the Crocket Hook, and pulls the rubber motor taught in the Pushing Stick.

Pic #3     1734     The string is now green masking taped by Mandrake to the Pushing Stick,  and the motor is secure enough to stick down the  fuselage without falling off,  to line up the rear motor peg dowel of the fuse.

Pic #4     1736     Here Bloodroot has the motor lined up.   Mandrake  stands at the ready to insert the rear aluminum motor peg through the fuse, and through the rubber motor loops, and through the Pushing Stick end "fingers",  and through the motor peg hole on the other side of the fuse.

Pic #5     1738   M and B inked on a black line on the Pushing Stick, to line up with the fuse front and rear motor peg.  Bloodroot pushed the motor in as far as the line,  everything lines up at the rear of the fuse, and Mandrake inserts the rear aluminum motor peg.

Pic #6     1742     Now M and B pull out the Pushing Stick, leaving the Rubber Motor neatly wrapped around the rear motor peg and in position.  All they have to do now, is pull the string out to pull the end of the motor with the Crocket Hook, out of the fuse nose a bit, install the nosebock and prop hook to the Crocket Hook, cut off the string, and ease the noseblock into position in the fuse nose, and we are ready to fly!!

LASTWOODSMAN
Richard

PS    It was 25 deg F (feels like 16 deg F), and frost on the grass, at 9:00 AM, winds 8 mph from NW gusting to 12 mph, 74% humidity ... waiting for it to warm up ...


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: vtdiy on March 23, 2019, 03:19:25 PM
LW did those guys wash and lube the motor, and do the break-in stretches before they started in with their forked battering ram?  :)


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 23, 2019, 11:10:00 PM
REARWIN SPEEDSTER  30" Dumas kit

NEW MOTOR INSTALLATION DONE        SATURDAY MARCH 23 2019

     Hi vtdiy.  Nope, I did not wash(?) the rubber motor, and I did not lube it.   I was just hoping to go with 300 hand winds (10 to 15 second flights?), a tight motor under tension holding in the prop block, and the plan was to never exceed 80% of the max "stretch winds", that I already experimented upon with all of my motors.   As far as break in stretching, apart from the stretch winding I did just now, for practise, yes I did pre-stretch them last season when I made them up.   I did lube a few,  but I find that it is not that much of a difference -  the lubed motors really make a mess of your tissue and especially the awful mess on the window glazing clear plastic.   Since I am just a small park flyer for fun and no record chasing (that is what we all 'like' to say), I don't think I will bother too much with lubing the rubber motors any more, just a pre-stretch.   But I will change the motors more often,  that is for sure.
        Well, here are the shots of the final assembly for any newbies out there.   Everything seemed to be going well ... so far...  Report (?) coming up ...

Pic #1     1744     Pull out the string, grab the rubber behind the Crocket Hook.
Pic #2     1745     Slip on the prop shaft hook through the small Crocket Hook hole (the string is through this hole also).
Pic #3     1746     Another view.
pic #4     1747     Cut off the string.
Pic #5     1748     Nestle in  the nose block, under rubber tension, into the front of the fuse.   Ready to fly, just by hand winds alone.  It does not actually take that long to put in 300 hand winds, if you have a solid enough nose to grip strongly with your other hand.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 24, 2019, 11:41:00 AM
REARWIN SPEEDSTER  30"  Dumas kit

MOTOR BREAKS AT 275 HAND WINDS

     The Speedster did not even make it out of my hands   :-\  , on this futile attempt at a third flight report.  I must build a big model in the future, by figuring in a winding tube first of all ...
     On the first wind at the Cricket Wicket, on that perfect day yesterday -  2:00 PM sunny, 37 deg F (feeLs like 34), winds blowing from SW at 4 mph gusting to 7 mph, 38% humidity - Sat March 23 2019,  with the new (old from last year), 13" motor,  I worked my way up in winds stopping a few times, pulling out the rubber, checking the knots, stopped at 270 hand winds, then proceeded to put the last 30 winds in and SNAP   -  it was more shock and disbelief than anything ... as I really checked the rubber motor well beforehand ...   ???

Pic #1     1749     On the walk to try out the new  13"  motor.  Note the flag - only 4 mph from SW gusting to only 7 mph.  We were getting really excited ...
Pic #2     1753     Right in the middle of the pic - the gray oval of the breast of the Cooper's Hawk returning from last year.  Beautiful Spring day.
Pic #3     1755      Went home and got the 18" Air Camper - the wind really picked up - nose plant pose for a few seconds, before the wind finally blew it over.
Pic #4     1758     Wind driving it down.  The wind seemed to be staying near the upper limit of the gusts.
Pic #5     1752    Looking straight down the fuse at the broken cross members and the knotted ball of broken rubber motor.
Pic #6     1761     Another shot down the fuse at the broken crossmembers and knotted ball of loaded rubber ... The weather now at 3:40 PM  was 45 deg F (41), winds from West at 8 mph gusting to 17 mph, 33% humidity.

     The Speedster is now out of action.  Mandrake and Bloodroot will be very angry.   :o    Surgery is necessary, as the broken crossmember, stabbing stub spikes from the broken crossmembers, will shred any rubber motor, that is  thrashing around in the fuse, as the rubber motor unwinds ...

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 25, 2019, 07:28:56 PM
REARWIN SPEEDSTER  30" Dumas kit

MOTOR BREAKS AT 275 HAND WINDS

Location:   Speedster Maintenance Hangar
Pics  #1 to #5   of  10

Pic #1     1764     Mandrake and Bloodroot pin up the old Ross Craftboard Fuse jig templates and pin them under the locating formers.  They are really upset at how much work there is to do now.    >:(

Pic #2     1765     They start by cutting away tissue to get at that knot of wound rubber, using long, heavy duty, needle nose pliers, and trying to make sure on that first squeeze, because you know, if you only just nudge that sleeping snake by accident, it will strike out in all directions, trying to finish the job.

pic #3      1766     Banding down the fuse into the jig, with those elastics, was surely necessary, as the motor was fully wound.    I only pulled out the knot just a little with the pliers, and got my fingers on it right away, to pull it out, and start slowly undoing the winds.

Pic #4      1770     Tied down with elastics to ground pegs.   The crossmembers at Formers #7, #8, and #9,  need replacing or "doubling" up.

Pic #5     FOX SNAKE -  caught one of these when I was 10.   Six feet long and six inches in diameter -  let it go of course.  :)

LASTWOODSMAN
Richard
cont. on next post


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 25, 2019, 07:36:10 PM
REARWIN SPEEDSTER  30" Dumas kit

MOTOR BREAKS AT 275 HAND WINDS
cont. from previous post

Location:   Speedster Maintenance Hangar
Pics  #6 to  #10   of 10

Pic #6     1769     The best way to get at the broken crossmembers was from above.  Once a couple of more tissue panels came off, there was enough room to see the actual damage, and see that it actually WAS possible to fix without having to take off the side decals and go in from the side.

Pic #7     1771     Examination from the top view.

Pic #8     1772     Top view.

Pic #9     1773     Mandrake and Bloodroot, cut and sand to shape, test fit, and sand again, three  3/32" square middle of fuse cross members.   Mandrake  is installing Fomer #7's crossmember.  Very tricky work.  Two are side glued as doublers, and one is glued on top  -  all upper surfaces are even.

Pic #10     1774     Here all three cross members are now double white glued into place.

     Now we just have to glue on tissue patches, and make up some brand new motors.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on March 25, 2019, 08:34:26 PM
The old Rearwin is a real battle horse. It never gives up :). I know you have a narrow entrance at the front but I would be considering a flexible blast tube. It may be possible to roll a suitable one up out of thin plastic. Tape the seam together. The flexibility may allow it to deform enough to fit the opening.

Make it long enough to stick out the front of the fuse. You will need to use a length of wire between the rubber and the winder slightly longer than the tube for withdrawal.

I'm glad your workers didn't walk out when they saw the damage :D

John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 25, 2019, 09:22:08 PM
     Hi John and flydean1.  I have been shying away from the blast tubes.   I have read that they must be a larger diameter than the wound up, and knotted up, rubber motor, in order that the rubber motor can wind up freely, without the rubber motor rubbing up against the wall(s) of the winding tube.

      This fuselage is split horizontally, into top and bottom halves, by a "trough" or "shelf" of   1/32" square crossmembers, from the nose to the tail.   One thing I noticed about this model is how low the location of the rear motor peg hole is to this shelf - they could be positioned a little higher, as I have done with the new rear peg location support  plates, that are now forward one bay of, and higher than, the original rear peg location holes.    When I load up my motor pushing stick, with four strands of  3/16" rubber motor, and then slide the pushing stick into the fuse, right close to the shelf, it barely fits with the rubber around the "fingers" of the pushing stick,  barely fits into the height of that newer, and higher,  rear peg hole.  Now if I put a blasting tube in there too, where is the room for the blasting tube also?   Won't the rubber rub on the blast tube then?  being too crowded to the crossmember shelf?     ???   If so, would I then have to raise the dowel holes higher?   Also, don't I need a little "press and turn" notch built into the end of the blast tube, to fit over the rear motor peg (dowel) ?

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: ironmike on March 25, 2019, 09:38:18 PM
Ya gotta move on to another model man
and cut your losses


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 25, 2019, 10:21:11 PM
I like this one.   ;D ;D ;D  It is especially good for practicing on.  Besides I see you guys flying a single model for years, and proud of it.   What have you got new for us IronMikey?   ;)


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: flydean1 on March 25, 2019, 11:03:20 PM
Sometimes all is needed is some long notches which allow you to slide the tube 1/2 inch or so behind the peg.  When I do that, I make a balsa wedge to push into the front opening to hold the tube while winding.

As you point out, if the winding rubber rubs on the inside of the tube, it isn't good.  As you unfortunately discovered, rubber is sometimes very unpredictable.

I had to repair my Lacey M10 about 3 times before I went to winding tubes.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 27, 2019, 10:16:09 AM
REARWIN SPEEDSTER  30"  Dumas kit

MOTOR BREAKS AT 275 HAND WINDS    COMPLETION OF REPAIRS

Hi flydean1.    How badly did you blow up the inside of the fuselage of your Lacey M10 three times?   Its good to know of other guys repairing blown up fuses also.   I am still wondering why the rubber motor broke in the first place   ???  - all clean breaks on all four strands, four inches back from the Crocket Hook, and before that, all four strands broke right beside the Crocket Hook.   :-\

Stayed up late last night finishing off the seven tissue panels I added (I am leaving the two right fuse side panels, at the rear peg, open for now to see the motor attachment (and to see  if it really flies any differently), and tying up a new four strand eleven inch motor, and stretching and lubing it.   The test run on 300 finger winds was 17 seconds.

I have put a lot of work in repairs, and reinforcing, of the wheels, landing gear, fuselage and wing, and wing struts.  With the current reinforcement planking of the upper Trousers and fuse, this is the best I can get it, in order to withstand those inevitable hard landings to a dead stop.   I have had 8 flights so far this spring, and the wire bends at the ankle (easily bent back), but I have had no hard landings yet to really test it.

And this morning is the time - 25 deg F at 9:30 AM with frost on the grass, and should warm up to 41 deg F by 11:00 AM  winds blowing at 7 mph.

Pic #1     1779     Mandrake and Bloodroot will not go quietly into the night, if they lose their jobs at the Maintenance Hangar.  They are stalwart tough Union Brothers.
Pic #2     1780     Seven new panels of tissue.
Pic #3     1783     All I have left is 14 feet of  3/16"  bubber after last year's first full season of flying the Speedster.     
Pic #4     1785     Assembling the motor.     
Pic #5     1786     Stretching and lubing the motor.
Pic #6     1791     Early morning sun - ready to fly ...   :)

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 27, 2019, 01:17:24 PM
REARWIN SPEEDSTER  30" Dumas kit

3rd FLIGHT REPORT     WEDNESDAY MARCH 27 2019

     As I was watching the weather this AM like a hawk, I saw the wind was now 11 mph   :o  at 11:00 AM, and forecast to get windier, so off we went anyways to the Cricket Wicket.  It seemed way too windy, trying to hold the model for the walk out there.
     Weather  11:05  AM  37 deg F (30),  wind blowing from South at 11 mph gusting to 16 mph,  52% humidity.   We got in three perfect flights, launching downwind, and all circling to the left for 3/4 of a circle and soft landings slowed down into the wind.     250, 270, and 260 finger winds respectively and 14, 15, and 13 seconds of flight respectively.   Only little bends to the landing gear wire at the "ankle".   Easy to bend back.

Pic #1     1795     On the Cricket Wicket, would up with 250 hand winds.
Pic #2     1796     First flight going left.
Pic #3     1797     Second flight.
Pic #4     1798     Second Flight landing.
Pic #5     1799     Third flight low under the replicas, going left.
Pic #6     1800     Third flight landing.

     I thought the wind was getting stronger, so we left, and it looks like several days for better wind weather.   No damage to the Speedster ....   :)

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on March 27, 2019, 07:04:25 PM
10 out of 10 for perseverance Richard :) I can see how being out there on your cricket patch is relaxing. A fair bit of space there and I'm amazed at how you keep avoiding all those trees. That's a good consistent trim you have on you Rearwin.

I'm all for repairing favourite models - I have quite a few in the sickbay waiting to get out :)

Happy Flying.

John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: vtdiy on March 27, 2019, 10:23:57 PM
Anybody can build a model from new. Takes thought, skill, patience and imagination to repair and maintain a model, to fly, and fly again over the long haul. Good on you, Richard! I like the mature battle scarred look of your model. It's real, not a pampered poodle.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: stovebolt on March 28, 2019, 12:06:00 AM
I like this one.   ;D ;D ;D  It is especially good for practicing on.
Stick with it young man, you only get 1 first. I'm still working on my first, but unlike you, I built one that won't fly. And have been told to scrap it and start all over. It's a low wing war bird, so when I built others, all I think about is ....the first. it's in it's third rebuild and I'm thinking it will fly, in a fashion.;)


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: Crabby on March 28, 2019, 10:28:08 AM
Richard, I have a 32 year old Comet Aeronca K. She's a battered old broad, tough as nails, and picky as hell but you give her what she wants and she'll do 2:00 easy. Get stupid with her and its all over. The Duco Guru told me years ago she was ready for the Mexican hat dance. The funny thing is.... she's the one doing the fancy dancing now! ;D ;D ;D. Ha Ha Ha the Guru and Iron Mike always have these fancy young things to cut the carpet with. I got a few old broads who will flamenco in hell if I treat 'em right!  ;D ;D ;D  She was cannonized by the great one himself Earl Stahl!


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 29, 2019, 04:12:08 PM
     Hi John.    Thanks for the bolster!  :)  The Cricket Wicket (more round than oval  110 yards by 130 yards)  is a great place to fly, and just a ten minute walk to get out there from my apartment.  Just four days ago, the Cricket players have taken over the Cricket Field now,  :(   from 5:00 PM  until dark, every day, so I must only go in there during the day.   Yes, it is hard to keep out of the trees.  You have to launch from more in the center of the field, with a buffer zone all around to the outer edge, and try to keep the model low (lower than the tree tops) and turning, and staying within that buffer zone.  Many times I have had wide perfect circles, flirting wide with danger, and when the rubber runs out, and the circle flight straightens out on the glide, and the plane goes sailing straight or curving slightly to the right, sailing right by the tree trunks   ???  on the field perimeter, and of course also hitting the trees or the seating stands too  -   all this comes into play, when you play with fire like that.   Then you have all of the swirling wind sweeping through the large tree gaps in the perimeter  ...
     However  ...   If any of you are bored with flying in the still air of indoor facilities, there is lots of excitement flying outdoors in the real, unpredictable, wind.
     Hi vtdiy and stovebolt!  Thanks for the kind comments.   vt - the Speedster WAS a  "pampered poodle" when it was wasting away on the shelf as a static display model for three years, before I pulled it down out of its lonely misery, and brought it to life.  A lot of soul has been invested into this bird,  and I really learned a lot, first hand, from a very hard season of flying all last year.
     Hi Crabby!   Thanks for that pic Crabby - just how did Earl Stahl "cannonize" your 32 year  old Aeronca K ?   You have to tell me the wingspan, prop to rear peg length, what size motor and prop, and how many turns you put in to get 2 minutes  :o :o  of powered flight.   "Mexican Hat Dance??"   I play that one too ...
https://www.bing.com/videos/search?q=Mexican+Hat+Dance+Attire&&view=detail&mid=53D25FF00C97A22EF30753D25FF00C97A22EF307&&FORM=VRDGAR

        By the way, I have 5, broken and smashed up,  "scale" bipes, and one EIII, all wasting away on the shelf right now.  They all took a few months each to build.  A real, discouraging disappointment, when you build them and they dont't fly.  Maybe someone can recommend a good flyable  30"  scale bipe laser kit - maybe one that has a "build in" compartment for the nose weight?   ??? ???   I am looking at other large high wing "flyable" golden age type scale models that are laser cut like the Speedster.   I like the looks of those planes, and they fly very well, and I need a big one with strong rubber,  for all of that wind.  And this wind today seems like it is always there now  -  no dead calm days ...
      So ... ,   I find great relief and great pleasure in just flying my 30" Speedster.  It actually has the penetration to fly in wind that is impossibe, and a waste of time, for smaller models.   And I like flying rather than building.   Plenty of time for static displays later on.   I defer to the old adage -  "Build what you want, fly all you can, and enjoy this great hobby."   So that is what I will do - fly this plane all I can.

Pic #1   Mexican Hat Dance Sheet Music and Speedster
Pic #2   Mexican Hat Dance pic

Thanks for watching

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: Crabby on March 29, 2019, 10:02:16 PM
Earl Stahl was hanging around our bench at ETSU one year shooting the BS with Thee Olde Man, Dave Rees was stooging for me, and Doc Martin was timing. I don't know the ceiling at ETSU but it's up there. I was winding and Rees kept saying "keep winding". I did a ROG and the "K", only two (?) years old at the time motored all the way up to the ceiling and hit something up there knocking out of its pattern. It spun, recovered, then cruised for a few laps then came down for a beautiful landing not far from where we were standing. Earl crossed himself and I grabbed a felt tip pen and had him sign it. That's the story. I never ever have witnesses for my successes, but that day, a youngish old man had a few big shots watching.

That's the Comet Aeronca K floatplane kit, its like 25" wingspan....its here in the plan gallery. I use a single loop of 1/8" rubber 28" long probably about 1200 winds with a 7" testors prop. it weighs like 38 grams all rubbered up. The key is getting it up there on the prop run then getting a nice floaty glide back. I say 2 mins but that's outdoors and its probably a bit more. I don't use a winding tube, usually make two motors one gets wound to destruction so I am doing my best ::) not to get a rubber explosion. Flydean would lose his mind watching my risky rubber antics!

I think that Speedster of yours has a surprise in store for you if you ever really wind the thing! I say let the old girl have her fun!!


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 29, 2019, 10:43:01 PM
REARWIN SPEEDSTER  30" Dumas kit

4rth FLIGHT REPORT    FRIDAY MARCH 29 2019

     Great story Crabby   8)  - please keep throwing them (and pics) up.
     Right after my above post, I was web surfing frolicking around a bit, and just happened to look at the computer weather -  it was  5:05 PM   48 deg F (46),  winds blowing only 6 mph from the East, gusting to 9 mph,  57% humidity  - WHAT !!??!!   -  we hurriedly grabbed the Speedster and some clay, and off we went to the Cricket Wicket, into the sudden calm before the storm coming later.   This was not in the forecast.  ???  :-\  Gotta make the best of these chances.
     We ( me and my flight supervisor Trapper), had 8 quite well behaved flights and I am now quite confident to go to bigger motors and stretch winding.   But this was quite the perfect flying session, as I beat out the Cricket players to the Cricket field (maybe they were not coming tonight),  got in my 8 flights,  thought the wind was picking up (it really was getting less according to the weather), and felt a rain drop,  and decided to go home and not be too greedy.   No damage, and the landing gear is working fine so far,  absorbing those soft, into the wind, landings - with very little re-bending needed, if at all ...
      All flights, except the 8th  and the first, were 3/4 circle  to  1 1/4 circle. Longest flight was 19 seconds on 300 finger winds, Flight #5.

Flight #1   250  finger winds 12 seconds, launched from the SE into a crosswind East wind, which resulted in the wind holding the plane in a relatively straight line, very little left turn, and heading straight for trees, but the rubber ran out (good thing I started on low winds).  Launching directly down wind solved this.
Flight #2     260 winds  12 sec  launched more from the East, and got a perfect  left hand circle to a soft landing into the wind.
Flight #3     270 winds  14 sec same as above
Flight #4     280  winds  16 sec full perfect circle
Fliche #5     300 winds  19 sec  7/8 circle just floating into the wind about 7 feet high on final, rubber runs out, and it glides down to a soft landing again!   BEST FLIGHT of the day.
Flight #6     250 winds ( ??  lost count)  18 sec perfect also.
Flight #7     310 winds  17 sec   1 1/4  circle perfect landing.
Flight #8     330 winds ( getting greedy) - only 9 seconds, as the wind blew it down flying low and left, just above the ground, for half a circle, when it hit the high fluffy grass - no damage.

Pic #1     1809     Soft landing in thick grass, and posing in a three point nose stand - no damage.    
Pic #2     1811     Perfect soft landing - you can see the slight bend of the Landing Gear wire, right at the ankle on the left leg - this is where I bend it back straight by hand.
Pic #3     1812     Full circle flight and on its glide path down to a soft landing after the prop runs out -  see, the prop is still.
Pic #4     1814     One and one quarter circle flight passing through 360 degrees.  Whipping by and picking up speed with the wind.  BEST PIC the speed illusion.
Pic #5     1815     Fuselage window showing the "wound" rubber window, and Trapper.
Pic #6     1816     Storm clouds are moving in -  time to go.

Well, that's 4 flight reports, one big repair, and 19 flights so far, and the grass is not even green yet ...  great fun with the "Rearwin", as you guys call it.   ;)

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: John Webster on March 30, 2019, 01:07:56 AM
Some years ago there was a group build on the Small Flying Arts website from a plan for the Staggerwing Beech. Several people built the model and reported successful flights.

Recently it has been offered as a laser cut kit:
https://easybuiltmodels.com/pd15.htm


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: flydean1 on March 30, 2019, 10:29:11 AM
I've heard great things about this kit.  Does anyone know of a kit or plans for a larger one, say 24 inch or slightly larger?


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: Crabby on March 30, 2019, 10:35:34 AM
you mean this thing? Rich Weber plan, and really is a great flier, but thrust adjustments are key! It is semi scale but still says it all.... I bet it would hold up to an enlargement. I don't get the laser cut thing on this model though, it really is a toothpick tree with the exception of a few ribs and some round formers up front! Great suggestion for Richard, another is the SE5a.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on March 30, 2019, 11:43:20 AM
Thanks for the suggestions.   I have already built a blue  17 1/2" Dumas Staggerwing laser kit #214,  Jan 3 2015.    43 grams total, and the nose cone itself weighs 3 grams.  No luck with this one -  just smashing in the balsa nose wall further into the plastic cowl, and no glide path - just straight down into the ground from 6  feet high.  6 second flights ...
     Dumas has a 30" laser cut Staggerwing for $67  US that they added to their lline on  Oct 17 2012.   Do you think a large 30" will fly better than a  17 1/2" model?

Pic #1     6132
Pic #2     6134
Pic #3     6137
Pic #4     6139
Pic #5     Dumas 30" Staggerwing

Here is the link to the STAGERWING 30" rubber power Dumas kit # 332

http://www.dumasproducts.com/product_info.php?products_id=1074

PS I like to fly with landing gear down ...

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 05, 2019, 09:57:37 AM
Look at this forecast!   :o :o   Just biding my time, packing up the pack and windin stooge slowly, checking the list twice.   The Speedster has a new  16 1/2"  motor all lubed up and stretched ...   ;D   The kids are in school and no Cricket players ...   :D

Pic #1     Weather Fri Apr 5 2019
Pic #2     1841
Pic #3     1842

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: Indoorflyer on April 05, 2019, 10:48:27 AM
That larger sized Dumas Staggerwing probably won't fly much better. It looks like a brick "outhouse" structurally, and is still not a very true to scale model. The Rich Weber dimescale design whether you scratch build or buy the kit is designed to fly, and is a proven performer. It has a very elegant, efficient structure. Molded plastic cowlings have no place on a flying model.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: Crabby on April 05, 2019, 10:59:21 AM
Indoorflyer no speak with forked tongue! Him wise!


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: kennybflyin on April 05, 2019, 04:42:41 PM

LastWoodsman

     Here is a snap of a Hi-Flier 16 inch Staggerwing. Whatcha think? Too little, too late maybe. Scale her up to 24 inch WS?  Really old plan I think. Outerzone doesn't have it listed anyway.

Kennybflyin


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: John Webster on April 06, 2019, 01:18:48 AM
Interesting stabilizer decalage adjustment gadget on that Staggerwing plan.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 06, 2019, 03:42:14 AM
Hello Kenny - thanks so much for those Hi-flier Rearwin Speedster and Hi-flier Staggerwing plans   ;D  - how do you find these plans?    8)  And thanks for putting the scale ruler at the bottom side.   :o   Is that just a pic or a scan?    Those pics expand really clearly in order to read everything.  

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on April 06, 2019, 09:09:26 AM
The Hi-Flyer Staggerwing plan actually shows you where to put the pins to build it.

John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 06, 2019, 05:19:39 PM
REARWIN SPEEDSTER 30"  Dumas kit

5th FLIGHT REPORT     FRIDAY APRIL 5 2019

     Here was the big day, since there have been no flying days now since Friday March 29 2019 -  six days.
     Today was actually two flight reports in the same day - one in the morning 6 flights, and one in the afternoon 7 flights.

MORNING FLIGHTS  5th Flight Report

Weather 10:25 AM  41 deg F (36),  winds  7 mph from East gusting to 11 mph, 81% humidity.   We left the apt at 10:45 AM.

Pic #1     1843     Walk on the way out, cloudy skies - it had rained earlier.
pic #2     1844     Sunken gardens of Jackson Park in the background.
Pic #3     1845     The Cricket field (lighter green) is just coming into view behind the three towering Dawn Redwoods that have shed their needles.
Pic #4     1846     Backpack is emptied.
Pic #5     1847     Closeup of backpack contents.

LASTWOODSMAN
Richard
cont.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 06, 2019, 05:24:28 PM
Moderator, I cannot upload pics.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: Crabby on April 07, 2019, 12:30:19 AM
test


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 07, 2019, 02:10:58 AM
Test -  OK now - great!

Moderator, please remove Replies #129 through to this Reply inclusive.  Thankyou.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 07, 2019, 02:24:15 AM
REARWIN SPEEDSTER 30"  Dumas kit

5th FLIGHT REPORT     FRIDAY APRIL 5 2019

     Here was the big day, since there have been no flying days now since Friday March 29 2019 -  six days.
     Today was actually two flight reports in the same day - one in the morning 6 flights, and one in the afternoon 7 flights.

MORNING FLIGHTS  5th Flight Report

Weather 10:25 AM  41 deg F (36),  winds  7 mph from East gusting to 11 mph, 81% humidity.   We left the apt at 10:45 AM.

Pic #1     1843     Walk on the way out, cloudy skies - it had rained earlier.
pic #2     1844     Sunken gardens of Jackson Park in the background.
Pic #3     1845     The Cricket field (lighter green) is just coming into view behind the three towering Dawn Redwoods that have shed their needles.
Pic #4     1846     Backpack is emptied.
Pic #5     1847     Closeup of backpack contents.

LASTWOODSMAN
Richard
cont.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 07, 2019, 03:06:44 AM
REARWIN SPEEDSTER  30" Dumas kit

5th FLIGHT REPORT     FRIDAY APRIL 5 2019

MORNING FLIGHTS 5th Flight Report cont.

Stretch winding the rubber motor with a winding stooge.  Winder Handle is  15:1
Starting with a 4 strand  16 1/2"  long   3/16"  rubber motor, prop hook to rear peg is 13".
Pic #1     1848     Rubber motor is wound.
Pic #2     1849     Good landing glidepath, and spits out the prop.
Pic #3     1851     On the ground in the dead middle of the tree trunks.
Pic #4     1852     Sitting past 2 lines of tree trunks.
Pic #5     1853     View the other direction - missed a lot of trees!!
Pic #6     1854     Closeup shows it had spit out the prop.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 07, 2019, 03:12:23 AM
REARWIN SPEEDSTER 30"  Dumas kit

5th FLIGHT REPORT     FRIDAY APRIL 5 2019

MORNING FLIGHTS 5th Flight Report cont.

Pic #1     1855     The plane is in the crux of the V trunk split, with white roof background -  goiong way too far out.
Pic #2     1856     Stops just short of the tree line.
Pic #3     1857     Bent left landing gear.
Pic #4     1859     High above Trapper.
Pic #5     1861     Spat out prop on landing, bent the left gear.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 07, 2019, 03:17:49 AM
REARWIN SPEEDSTER 30" Dumas kit

5th FLIGHT REPORT    FRIDAY APRIL 5 2019

MORNING FLIGHTS 5th Flight Report cont.

Pic #1     1862     My whole setup.
Pic #2     1863     Broken strand again while stretching.
Pic #3     1864     On the walk home for lunch and to change the motor.  The wind is blowing 8 mph - see the flag at attention ...

FLIGHT SUMMARY -  7 Flights
                    
Flight #1     25 handle turns =  375 rubber winds    16 sec   Perfect slow circle, spitting off the prop as it lands.

Flight #2     30 turns =  450 winds    22 sec     full circle, runs out of motor, straightens out the glide and lands pst the tree trunk!

     I added more weight to the left wing tip to make the flight a tighter left turn.

Flight #3     25 = 375 winds    19 sec    Launched from the NE side of the field.  Big  half circle and it lands just short of the tree line.

     I added more weight.

Flight #4     25 = 375 winds   4 sec    CRASH  Bad launch   :-[  on too high of an angle.  Climbs, stalls, and comes straight down into the ground,  and bent the wheel pants badly.  Big "Crack", but I did not see too much damage.  I THOUGHT it was a good test ...   ??? :-\ :P

Flight #5     25 = 375 winds     18 sec     Big 3/4 circle right over Trapper Pic #1859

Flight #6     25 = 375 winds    22 sec    Nice high slow flight 3/4 circle and soft landing into the wind.  BEST FLIGHT  The extra weight worked.

     While winding for the 7th flight, I stretched out the knots of the motor to look how they knotted up, and snap, one of the rubber strands breaks right in front of me.   So we decided to got home, as the sun would eventually come out, and we needed to eat lunch.

Got back to the apt. at 12:15 PM. 
Weather  12:05  PM   43 deg F (37), winds  8 mph from North, gusting to 12 mph, 81% humidity.

We changed the motor, ate a big lunch, and headed back out to the Cricket Field.
cont. on "afternoon flights"

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: ffadict on April 07, 2019, 09:47:36 AM
I think more time is setting up (err, deploying) Bloodroot and Mandrake than building :)


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 07, 2019, 12:00:35 PM
REARWIN SPEEDSTER 30"  Dumas kit

6th FLIGHT REPORT
    FRIDAY APRIL 5 2019
continued from the morning flights above

AFTERNOON FLIGHTS   6th FLIGHT REPORT

Left the apt at 2:10 PM, after a big lunch.
Weather  1:55 PM   46 deg F (43), winds from North at 6 mph, gusting to 9 mph, 81% humidity.

Started with a new 4 strand  18" long   3/16" rubber motor.  Prop hook to rear peg is  13".

Pic #1     1866     Flying way out there going left, above the end of the "Pitch".    
Pic #2     1867     Flying close in behind me.
Pic #3     1868     Just above the tree line.
Pic #4     1869     Damage to left front Trouser attachment.
Pic #5     1870     BEST PIC  Flying in behind me.
Pic #6     1871     It hit the soft part of that big soft spruce branch right above, and fell to the ground.  No damage ...

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 07, 2019, 12:11:22 PM
REARWIN SPEEDSTER  30" Dumas kit

6th FLIGHT REPORT     FRIDAY APRIL 5 2019
continued from  above

AFTERNOON FLIGHTS     6th FLIGHT REPORT

Pic #1     1872     Flying into the stand of mature Spruce trees ... two thirds up the spruce at right, going left.
Pic #2     1874     Stuck high in the middle.
Pic #3     1873     Closeup of the lightly stuck Speedster
Pic #4     1875     Flying left.  BEST PIC
Pic #5     1876     Great day for flying.
Pic #6     1877     In low for a landing.

Flight #1     28  =      420 winds     18 sec     15/16  of a circle,  soft landing, spits out the prop.    Pics  1866  1867

Flight #2     33  =     495 winds     14 sec     3/4  of a circle,  really slow into the wind at the end of the flight, left gear slightly bent.  Pic  1868

Flight #3     CRASH   35 =     525 winds    4 sec    The wind was more from the East and drove it down, =  bad cross wind launch, going left low and hit hard under full power.  Broke out the forward Trouser attachment to the fuse Pic #1869.

I continued flying the plane anyways - the sandwiched Landing Gear wire was still solid and springy ...

Flight #4     35  =     525 winds      17 sec    Flew one circle right in behind me and into a big thick spruce bough six feet above the ground.  Pic 1870 and Pic 1871

Flight #5     35   =     525 winds    17 sec    LANDS HIGH UP IN A BIG SPRUCE  I launched from the NE (I am doiong soft launches now), it flew  1 1/4 circle in behind me really high, and slowly glides into the clump of five big spruce trees.   Two big  4" diameter limbs were barely within reach if I jumped up as high as I could.   I tried ...  failed miserably, but on the long walk back to the Stooge, Lo and Behold, there is a really long 10 foot stick just laying there ...  which actually reached the plane to get it out.   Pic 1872, 1873, 1874

Flight #6     35  =     525 winds    22 sec     full circle soft into the wind Pic  1876

Flight #7     35  =     525 winds   17 sec     end of a big  3/4  circle

     At  3:07,  we decided to go home instead of smashing it up further, even though she still flew fine ...  More work for mechanics Mandrake and Bloodroot in the Speedster Maintenance Hangar ...

Back home at  3:25 PM
Weather  55 deg F (55)   winds from North East at 4 mph, gusting to 6 mph,  62%  humidity.

We sure ended up  using the whole Cricket field.  ??? :-\   The End.   Thanks for watching.   Keep 'em flying !   :D

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: ffadict on April 08, 2019, 12:34:49 PM
I'm glad you got the Speedster out of the tree! My brother test flew the only airplane he ever built into a tree, and it firmly stuck itself into an unclimbable position, and refused to come down until it was ruined by a T-storm...that ended his building career :(


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on April 08, 2019, 08:32:29 PM
What a day of flying Richard. Success and a bit of drama.

Ffadict - I have lost a couple in trees - annoying but still you can't let it stop you.

John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 09, 2019, 06:23:38 AM
     Thanks ffadict!   That long stick I used just happened to be laying in the middle of the Cricket field.   One's interest in this hobby is quite easily lost when you smash up a model, especially when it does not fly in the first place.  I won't ever fly without landing gear ever again.  Hopefully, you could entice your brother into the Hobby again.
     Thanks John.   That was a really tiring day, as I did not set the stooge up close enough to the launch area, and as I had to do a lot of trudging all over that Cricket field, over dressed, and with the big rubber Wellington boots on.   We did have some really nice flights, but we will have to have the mechanics take a look at the damage back at the Hangar.   We will be back.

     Pic of my smashed up 25" Waco N that took me four months to build.  Thanks to everyone who tried to warn me.   I'm still not over this one ... Extreme disappointments like this, among other things, can really drive you from the Hobby, that is for sure ...

Pic 9012

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 10, 2019, 09:58:08 PM
REARWIN SPEEDSTER  30" Dumas kit

REPAIRS FROM FRI APR 5 2019 CRASHES

     There was not really a lot of damage   :-\ - a cracked balsa sandwich of the landing gear at one spot, a couple of broken stringers, nothing that can't be fixed up with some infill plank blocks.   :D

Pic #1     1914     Mandrake and Bloodroot have a lot on their minds as they drag the Rearwin into the Hangar.

Pic #2     1916     M and B suspect sabotage and subterfuge, and are not sure if they still have a job ...
     On the screen -  a "Merlin" falcon - 23" wingspan nicknamed Pigeon Hawk.

Pic #3     1917     M and B just got the happy news ;D  :o  ::) that their contract is extended -  high fisting  ...    Time to get the Speedster airworthy and back in the air ...   8)

Pic #4     1919     M and B perform exploratory surgery.

pic #5     1918     A block of balsa is cut out, shaped, and test fitted, and cut lines are marked with pencil, to thin out the block  even with the fuselage contour.

Pic #6     1921     Another block is cut out and test fitted.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 11, 2019, 04:15:55 PM
REARWIN SPEEDSTER 30" Dumas kit

REPAIRS FROM FRI APR 5 2019 CRASHES

Pic #1     1922     This little block infill plank was just not quite wide enough, so a scrap piece of 16" plate balsa was glued to it after pencil tracing the location, and pinned down with a springy long piece of balsa plank.

Pic #2     1923     Double white glued and dried overnight.  All ready to cut off the excess.

Pic #3     1924     After fitting in and gluing the above plan, it needed another shim for a gap.   

Pic #4     1925     And another shim for good measure.

Pic #5     1927     All is dry now and Mandrake cuts off the excess balsa, even with the fuse.

Pic #6     1931     Mandrake sees it even needed just one more balsa shim.  Now everything is all tight, and good and solid, and double white glued, ready for final sanding,  staining, and tissue repair.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 19, 2019, 12:44:26 PM
REARWIN SPEEDSTER 30"  Dumas kit

REPAIRS From Fri April 5 2019 CRASHES

     Mandrake and Bloodroot continue working on the Speedster.

Pic #1     1932      Planking is dry and sanded, ready for "Golden Oak" stain, then some tissue panels ...

Pic #2     1933     The balsa trouser just spins around the Landing Gear wire,  up into place, against the fuse,  for flying.

Pic #3     1942     The work day for Mandrake and Bloodroot starts at the crack of dawn.

Pic #4     1943     The planks are now stained up, and finally dry.

Pic #5     1970     Mandrake and Bloodroot measure up, and cut out, four panels of tissue, for exact fit.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: stovebolt on April 19, 2019, 02:28:53 PM
   
Here is a good link to one of many stories about "The Mad Trapper of Rat River"  (Rat meaning the "Muskrat" that was, and still is, trapped for  its luxurious fur)    http://nwtandy.rcsigs.ca/stories/rat_river.htm

LASTWOODSMAN
Richard

Thanks for that link, great story.
Didn't Lee Marvin and Charles Bronson do a movie along these lines? Wonder if that was the inspiration?


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 19, 2019, 05:51:05 PM
     Hi stovebolt.   Yes, and yes, that movie is called "Death Hunt" and was loosely based on the Mad trapper of Rat River.  Death Hunt bears little semblance to the true story of the manhunt of Albert Johnson, the reputed "Mad Trapper of Rat River". https://en.wikipedia.org/wiki/Death_Hunt
     The real plane that finally found the "Mad Trapper" was a Bellanca CH 300 PACEMAKER, and was piloted by "Wop" May,  not the Bristol F.2 Fighter biplane as shown in the movie.   That CH 300 plane is right near the top, of my top five aircraft to model. 

Pic #1     Death Hunt  1
Pic #2     Death Hunt 2
Pic #3     Death Hunt 3
Pic #4     Death Hunt 4
Pic #5     Bellanca CH 300 PACEMAKER  enlarged
Pic #6     Mad Trapper 2  newspaper clipping.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 19, 2019, 07:56:38 PM
REARWIN SPEEDSTER 30"  Dumas kit

REPAIRS From Fri April 5 2019 CRASHES

     After gluing on the tissue panels,  M and B concentrate on the motors.

Pic #1     1983     Making  3/32"  and  1/8"  motors of multiple strands of smaller rubber, but the same cross section width as  3/16"  rubber.

Pic #2      1971     Bench testing the eight strand, 12 inch long,   3/32"  motor.

Pic #3     1972      Another view.  

Testing The  3/32" ,  eight strand (four loops),  twelve inch 12"  rubber motor,  to see if there is any difference from using a  four strand 12" motor of  3/16"  rubber.

STRETCH WINDS on Table Stooge
300  winds  =  11 seconds
300  winds  =  16 seconds
300 winds  =  17 seconds
      It looks like the rubber got "broken in"  by the first test, thereby giving longer flight time runs afterwards.

FINGER WINDS
150  =  9 seconds
200  = 11 seconds
240  =   14 seconds

     The actual testing in the Cricket Field outside, came on the morning of Tuesday April 16 2018,  using the 8 strand 12" long motor of  3/32",  all using finger winds in the 30" Rearwin Speedster,  which has a prop hook to rear peg of  13".    

Report to follow.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: kennybflyin on April 20, 2019, 11:12:15 AM
OK
Now for a dummy lesson on the names of your repairmen, please.
Mandrake and Bloodroot are plant names. How do you associate those plant names with the two repairmen?

Never give up on that ol’ Rearwin.

Kennybflyin


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 20, 2019, 12:37:48 PM
REARWIN SPEEDSTER  30" Dumas kit

FLIGHT REPORT #  7   EARLY AFTERNOON FLIGHTS Tuesday April 16  2019

     After Mandrake and Bloodroot glued on the tissue, they installed the lubed and pre-stretched,  12 inch motor of eight strands ( 4 loops ), of  3/32"  rubber.   We wanted to see if there was any difference between  a  3/32"  and a  3/16"  motor of the same combined rubber width.
      We left the apt  at 1:30  PM.    The weather was   50 deg F (26), wind blowing from the SW  at  10 mph gusting to 16,  71% humidity.   There is leaf flush today, and swollen buds, and the grass is green and growing.
     We got in 5 flights, surviving one single cartwheel crash on Flight #3.

Pic #1     1974     Walk out to the Cricket Field past the Flower Garden and the Astrolabe
Pic #2     1975     Flying left at the tree line.
Pic #3     1976     Flying
Pic #4     1977     On the ground.   You can see the slight bend in the left  Landing Gear wire on the left ankle.
pic #5     1978     The plane is just above the top of the right seats.
Pic #6     1979     The deep grass has not been cut yet this year.

Flight #1     200 finger winds  =  10 sec     
Flight #2     225                        = 12 sec   flight was long and not enough left turn.    I added a left rudder tab bend, to tighten the circle
Flight #3    240  CARTWHEEL CRASH  -   I had added too much left rudder turn !!     It flew out tight and low to the left, and hit the ground with the left wing, about 3 seconds into the flight.   One complete cartwheel, lands on its legs, and runs out the rest of the prop rubber, while still being held in place by the long grass.   No damage   ;D  -  Whew ...    :P :-\  I blame this completely on a sudden change of wind direction ...    ??? ???
Flight #4     240                        =  13 sec     half circle
Flight #5     260                        =  12 sec     3/4 circle

     Well,  I did not see any real difference   :-\  from using a 3/16" motor.   Enough experimenting ...  time for the stooge and winder and a big motor.
     We got home at  2:30 PM  50 deg F (46) ,  wind is now blowing from the south 9 mph,  gusting to 14 mph,  71% Humidity.    We had a big lunch, and then headed right back out with the Winding Stooge and Backpack. Little did we know ... ,  the wind was dying down to only  4 mph  ...  and we were about to set a new personal record ...

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 20, 2019, 09:36:17 PM
REARWIN SPEEDSTER  30"  Dumas kit

FLIGHT REPORT # 8   LATE AFTERNOON FLIGHTS  Tuesday April 16  2019
9 Flights.


     At home we put on the big   19 1/2",  four strand (two loops),  3/16" rubber motor.   Prop hook to rear peg is 13".
     We ate quickly and packed up, and picked up the pace on the walk back out to the Cricket field of Jackson Park,  with good reason -  the weather was now  becoming almost perfect ...  We left at 3:52 PM, and   the temp was 57 deg F (57),   winds were blowing ONLY  4 mph from the South,  gusting to 8 mph,  and only 59 % Humidity.   And no one was on the wide open Cricket Field.   And the grass was green and long and growing  ...

Pic #1     1999     Pic in front of the replica warplanes on pedestals.
Pic #2     1994     Trapper, pack, plane, stooge setup.
Pic #3     1985     BEST PIC  Flight #1    flying into the tree.
Pic #4     1986     Lightly stuck in the tree on Flight #1,  precariously perched on a small branch.
pic #5     1987      Flight #2    Long half circle straight out, not enough left turn.    I added a touch little more left turn on the rudder tab and elevator tabs.
Pic #6     1988    Flight #3     flying just above the end of the Pitch.

Flight #1     600 winds    16  seconds    STUCK IN A TREE  1985  1986  On the first flight,  I wound in 30 handle cranks on my 15:1 Winder,   then I foolishly made the mistake of cranking in another 10,  for 600 stretch winds total.    This flight went beautifully, out in a big circle, but comes around high, back to me and in behind me, and I am running after it to try and grab it before it hit the trees ...   :o :o    I could only take a pic of it flying into the tree.   :(   It was well out of reach when it landed, floating into the wind, and perched like a bird on a very thin branch, WELL out of reach.   I had to hike to the other end of the field and found my old stick I used before ... and got it down - a couple of really small tissue tears, solved with a little Scotch clear tape.  What a way to start out ...   ??? :-\
Flight #2     450 winds  18  sec   Long half circle straight out, not enough left turn.    I added a touch little more left turn on the rudder tab and elevator tabs.
Flight #3     450 winds  15  sec  Launched from the NE.

cont on next Reply

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 20, 2019, 10:20:50 PM
REARWIN SPEEDSTER 30"  Dumas kit

FLIGHT REPORT #  8  LATE AFTERNOON FLIGHTS  Tuesday April 16  2019
9 Flights
cont. from prev reply

Pic #1     1989     Flight #4   BEST PIC   Real close pic!   1 1/8 perfect circle real close.
Pic #2     1990     Flight #5     Almost down to a perfect landing.
Pic #3     1991     Flight #6    The flight was really floaty into the wind on the last leg.   Pointing down and coming right at me, it lands at my feet - 28 sec.
Pic #4     1992     Flight #7  BEST PIC    Grey prop wash against the gray skies.   31 sec   1 1/4 perfect circle.
Pic #5     1993     Another view of my setup,  along with that life saver stick!!
Pic #6     1995     Flight #8     31 sec   I had launched this at a higher angle and it went way up for another perfect flight.  Nice pic of the Rearwin coming in to land at my feet.   :)

Flight #4     525 winds 24  sec  Pic 1989     BEST PIC    1 1/8 perfect circle, real close pic coming in for a landing.
Flight #5     525 winds  23 sec  Pic 1990     
Flight #6     615 winds  28 sec   Pic 1991
Flight #7     675 winds  31 sec   Pic 1992    BEST PIC
Flight #8     750 winds  31 sec   Pic 1995     31 sec perfect flight -   lands at my feet ...   

cont on next Reply.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 20, 2019, 10:34:20 PM
REARWIN SPEEDSTER  30"  Dumas kit

FLIGHT REPORT #  8   LATE AFTERNOON FLIGHTS  Tuesday April 16  2019
9 Flights
cont. from prev Reply

     This is my record setting Flight  #9 of  43 seconds - the previous best from all of last summer was  34 seconds.   Motor was  19 1/2" long of 4 strands of  3/16" rubber, prop hook to rear peg is 13 inches.

Pic #1     1996    Flight #9  43 seconds,  way up high ...
Pic #2     1997    Flight #9   On final with the wind, going past the tree trunk perimeter line ...
Pic #3     1998     Flight #9     This is how it landed on this record flight - one flip after it landed, and having already spit off the prop, and no damage.
Pic #4     2000     The sun is breaking out along with the tree buds.
Pic #5    2001     Blue sky and white clouds and Spring trees of Jackson Park,  Windsor, Ontario, Canada.  A couple of small strips of Scotch tape, holds the prop block on for travel.
Pic #6        WEATHER FORECAST for tomorrow  Sunday April 21 2019

Flight #9     750 winds  43 seconds.   This flight took so long, I got two pics.  This came around the circle very high, after getting a good upward launch downwind, which must have caught part of the bottom of the wind coming over the tree tops, because it climbed even higher.  The down wind leg was nice and high turning into the crosswind, while moving further along and out, and then starting to circle into the wind, suddenly climbing and dropping,  wavering and slowing up and getting bounced around while coming back into the wind, way up high, at or above tree top level,  but still possessing the penetration as it kept spinning into the wind.   I don't think smaller models can do this.  That is why I need larger models for this small field and the ever present strong winds that we have today.   Came in 360 degrees around in behind me high, and went slow downwind very far and high, and eventually ran out the rubber.
     The landing finished out past the tree line,   ??? :-\  after it straightened out when the rubber ran out - good thing there were no tree trunks in the way   :o   .....    So, we decided to quit as it seemed to be getting more windy.

     We got home at 5:20 PM,  and the wind had really picked up.  It was now 50 deg F (46),  winds blowing from the North (the wind had shifted from South to North while we were out there flying ...), now blowing from the North at 9 mph, gusting to 14 mph,  and 82% Humidity.
     This is the best time of year right now to fly,  before they cut the grass for the first time.   And the weather forecast looks great for Sunday April 21 2019 and Monday April 22 2019, and for the rest of the week.   We will be there ...  time for the bigger  21"  and  22"  motors, and we'll see if I can keep it out of the trees ...

Happy flying

The End

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 27, 2019, 03:09:16 PM
     Hi kennybflyin!   I hope to never give up on the ol'  30" Rearwin Speedster -  thanks for the nice reply.    :)  My cyborg super soldiers (half human and half machine),  from the future,  Mandrake and Bloodroot, did get their names from plants.   They actually chose their own names ( Artificail Intelligence).   ;)   Mandrake is both beneficial and deadly, and Bloodroot was used for war/protection, and face paint, and decorations, by Native Americans.
     I did get some further flying in on Sunday April 21 2019,  and Monday April 22 2019 -  Sunday was an exercise in hand winds of a 10" four strand motor of 3/16"  for 8 great flights in a wet Cricket Field.   We were ready for Monday also, and went all out as we headed out with the stooge for an attempt at beating the 43 second record we just got  -  I came up barely short with a 42 second flight   ;D ;D  , but then ........  ??? :P :'(   two Flight Reports to follow.

Pic #1     Mandrake plant   in Rearwin Speedster Apr 5 2019
Pic #2     Bloodroot plant
Pic #3     Mandrake and bloodroot front view
Pic #4     Mandrake and bloodroot rear view

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 28, 2019, 10:15:17 AM
REARWIN SPEEDSTER  30"  Dumas kit

FLIGHT REPORT #9             SUNDAY APRIL 21 2019

8 FINGER WOUND MORNING FLIGHTS 

     First thing In the morning, on the walk out into the park with Trapper, we found out that the Cricket Field was sopping wet from three days of rain -  with standing "ponding" water on the East side -  but the West side of the Field was much drier.  So back at the apartment, after our walk,  I put in the new  10" long, six strands 1/8" rubber motor that I had just made up (prop hook to rear peg is 13"), and we went back out to the Cricket Field for some test flights with this rubber combination.   And we got some good pics of what Jackson Park looks like in the Spring at the crack of "leaf flush".   :)

Pic #1     2007     Morning walk - park is coming alive - rained yesterday.
Pic #2     2008     Blue and white sky with buds and flowers just coming out on the trees.
pic #3     2009     Ham shot #1
Pic #4     2010     Ham shot #2
Pic #5     2011     Ham Shot #3
Pic #6     2012     Trapper and the Reawin Speedster warm themselves up on the sunny astroturf of the Cricket "Pitch".

LASTWOODSMAN
Richard
cont.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 28, 2019, 10:26:02 AM
REARWIN SPEEDSTER 30"  Dumas kit
cont from prev Reply
FLIGHT REPORT #9            SUNDAY APRIL 21 2019

8 FINGER WOUND MORNING FLIGHTS  

     The weather at  10:25 AM  -  Temp was 50 deg F (48),  winds blowing from the West at 4mph, gusting to 7 mph, and 82% humidity.
     We had a total of eight great flights,  all from finger winds (I have perfected my technique, of somewhat quickly,  powering in the winds of the prop, surely and solidly).    I planned just flying it in one half to three quarter circles, and try to get it to land on the drier side of the Cricket field.  The flights were all about one half to a max of 3/4 of a circle, and with the way the wind was blowing, I could  just send it off downwind,  and at the end of each flight it would land in the higher and drier, but still wet, grass part, of the West side of the Cricket field.
     I think I am beginning to really like this simple finger winding for small park flying  - you can have a lot of fun   ;D :D  with 20 second flights, which really is not too bad of a time at all  8)  for a 30"  High Wing model.   And there is no pressure to set a record and bring the stooge and set up everything.

Pic #7     2013     Another view.
pic #8     2014     I like this pic -  she just did 43 seconds on the last Flight Report #8.   The yellow willows are in full flower.
Pic #9     2015     Flight with sprouting tree leaves.
Pic #10     2016     Spring flying.
Pic #11     2017     Perfect landing.
Pic #12     2018     Coming down on final glide.

LASTWOODSMAN
Richard
cont.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 28, 2019, 10:34:12 AM
REARWIN SPEEDSTER 30"  Dumas kit
cont from prev Reply
FLIGHT REPORT #9          SUNDAY APRIL 21 2019

8 FINGER WOUND MORNING FLIGHTS  

     I started out with  150  finger winds, which gave an 8 sec flight,  and I worked my way up through the next flights, all the way to 275 finger winds which gave me  a 20 second flight, the best of the day.
     So ... after all that rejuvenating therapy,  we went home, ( as the forecast, for the next day, Mon Apr 22 2019, was about to come true, and we would be ready to fly then ... as the Cricket Field should dry up more ...).  
    On the walk home through the park,  we had a visitor in the perimeter of the sunken flower garden - a wild Turkey.   I had seen him the evening before, near the entrance on the grass, and he flew almost straight up with powerful, thrashing and crashing wingbeats,  up to a big tree limb.   A few days before, I was walking up the butterfly meadow strip by the rail tracks and frog ditches, when at 20 minutes before sunset,  we saw four turkeys fly up separately into their roost tree, spaced out, and one at a time,  in the next 7 minutes.  Got a pic of them at sundown too -    
     At home, the weather at  11:45 AM now, was Temp 54 deg F (52), winds blowing from the SouthWest at  8 mph, gusting to 12 mph, and 77% humidity.
     We had a lot of fun with those easy flights - good practise of launching technique -   but with the next day having a great forecast,  we now, at home,  put in a brand new  22"  stretched and lubed 3/16" 4 strand motor,  bench tested the motor in the plane,  and packed up all the equipment, and waited with eager anticipation, intending to get out flying first thing in the morning the next day,  after running the dog.

Pic #13     2019     Soft landing flip.
Pic #14     2020     Nice pic flying left.
Pic #15     2021     Best Ham pic on the walk back home.
Pic #16     2023     Turkey in the Flower Garden.
Pic #17     1965     Turkeys roosting at sunset for the night.
Pic #18     1966      Exploded view of the Turkeys.

Happy Flying !!   :D

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: Crabby on April 28, 2019, 10:36:15 AM
Nice pics Last wood! I admit I would have a hard time not being distracted by those two voluptuous aircraft shapes. I could stand and gawk for hours. Too much for the eyes. Insufficient human senses for shabby human absorption! I would have to go look at a Ford Escort for 15 minutes just to counter balance the high, and walk straight again!


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: lincoln on April 28, 2019, 09:05:13 PM
Clearly, in order to be prepared, you need to dangle a Matchbox sized Escort from the brim of your cap so you can be prepared for emergencies. Otherwise, you may someday find yourself trapped in a fugue state. ;-)

P.S. It may be hard to find one. Maybe you'll have to settle for a Pinto, a Pacer or (gasp!) a Yugo.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 29, 2019, 05:49:02 PM
REARWIN SPEEDSTER  30"  Dumas kit

FLIGHT REPORT #10
            MONDAY APRIL 22 2019

SEVEN FLIGHTS STRETCH WOUND


      Weather at  9:35 AM  was  54 deg F (52) ,  winds blowing from the South West at 6 mph, gusting to 9 mph,  77% humidity.
     We had the new  22" four strand  3/16" rubber motor in the plane (prop hook to rear peg is 13").    We were out to beat that  43  sec personal record in Flight Report #8.    We gave the record a pretty good scare with a  42 sec flight in Flight #5, coming just short by one second.   Little did we know ...  but I knew in the back of my mind -  that that hard "KRUNK" at the end of the first flight would come back to haunt us.   

Flight #1     525 stretch winds     18 sec
Flight #2    600 winds     16 sec
Flight #3     675 winds     12 sec
Flight #4     750 winds    30 sec

Pic #1     2031     First Flight way out there, half way through the one circle flight going left, and finishing to a hard landing at my feet.
Pic #2     2032     Still first Flight,  ready to run out of rubber and then suddenly it dive bombs me extremely quickly, from about 9 feet above, like a Kamikaze curse hex, right straight at my feet, causing me to just barely, desperately leap out of the way in time,  at the last femto second,  and the downward pointing nose hits the short, Cricket player-trompled grass at my feet, with a solid LOUD 'KRUNK' !!    This would lead to a serious problem later ...  I did wiggle everything to try to find a break, but it all seemed solid ...
Pic #3     2033     2nd Flight coming in to land just beside the Pitch.
Pic #4     2034     How the second flight ended up.
Pic #5     2035     Ready to start winding.
Pic #6     2036     4th Flight  30 sec Flight  BEST PIC

LASTWOODSMAN
Richard
cont.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 29, 2019, 06:02:51 PM
REARWIN SPEEDSTER  30"  Dumas kit

FLIGHT REPORT #10           MONDAY APRIL 22 2019
cont from last Reply
SEVEN FLIGHTS STRETCH WOUND

Flight #5     825 winds     42 sec   LONGEST FLIGHT of the day  - one second short of my record!    It flew  1 1/4  circle, which changed direction way high up in the glide and flew the other way to land on the road -  good thing I had moved further to the left on the launch - or I would be in the trees.

Pic #1     2037     4th Flight.  Landed on the woodchips in the middle of a grove of five large Norway Spruce trees ( Picea abies ),  in the North East corner of the Field,  and just missing all the trunks flying in there.   ???
Pic #2     2038     4th Flight.  Closeup of how it came to rest.
Pic #3     2039     In the winding stooge.  Right top wing root shows a long tear of the black tissue.   This is where the break was started from the first flight.   :(
Pic #4     2040     5th Flight.  Nice pic coming around full circle. Longest flight of the day -  42 sec  -  one short of the record.
Pic #5     2041     Still 5th Flight.  With the rubber winding down and running out with the plane high in the air,  the plane changed direction  180 degrees   ???   and is now landing on the gravel packed road!  just before the puddle!   Landed hard but upright.
Pic #6     2043    Still 5th Flight   And here is how it landed, having spit out the prop block,  view of the road looking North.

LASTWOODSMAN
Richard
cont.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on April 29, 2019, 06:12:32 PM
REARWIN SPEEDSTER  30"  Dumas kit

FLIGHT REPORT #10           MONDAY APRIL 22 2019
cont. from last Reply
SEVEN FLIGHTS STRETCH WOUND

Flight #6     900 winds     27 sec      1 1/2  circles
Flight #7     825 winds     27 sec   CRASHES INTO A TREE AND BREAKS OFF THE LEFT WING !!!   It was already 1 1/2 circles into the flight, and was curving to try and miss the trees, and was nice and high on the leeward side of the trees, and could have been a long flight, .....  but alas,  it flew too close to the trees,    ???   :'(    and the wing broke off so easily, just like a 'breakaway' wing,  which means the damage was done earlier.

Pic #1     2044     This view looks North West  - you can see that grove of five big Norway Spruce trees right beside the road.
Pic #2     2045     6th Flight   This is why Ray Rearwin called it a "Seedster" - it is so fast,  it is a blur ...
Pic #3     2046     Still 6th Flight.  Nice long 27 sec flight, glides to a landing from right to left, and just misses the tree trunk on the far side,   :o :o  landing very close beside the trunk.
Pic #4     2047     The finish of Flight #6, right beside and missing the tree trunk.
Pic #5     2048      7th Flight.  About to fly right into that branch and break off the left wing.  :o :o
Pic #6     2049     Lying on the ground, with the wing broken off, and the prop still spinning   8)   :o   ;)  ...

     Needless to say, we went packed up and left  ...  but at least we gave the record a good scare with the 42 second flight -  only one second off ...   Mandrake and Bloodroot will have to see how bad the damage is ...
     We got home at  11:15 AM    59 deg F (57),  winds blowing from the South at  11 mph, gusting to  16 mph,  59% humidity.
     Another exciting day, with the full gamut of emotions, from the thrill of victory, to the agony of defeat ...  from your local amateur small park rubber powered Free Flight balsa model basher (flyer) ... saying ....  "So Long",  from the Crickett Field in Jackson Park, Windsor, Ontario, Canada.
     Keep 'em flying !

LASTWOODSMAN & Trapper
Richard
The end of Flight Report #10


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on April 29, 2019, 08:32:51 PM
Back to the repair shop Richard? It looks like a clean break. Beautiful sunny day - a pity about the tree getting in the way on your last flight.

John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 02, 2019, 08:20:20 AM
REARWIN SPEEDSTER   30"   Dumas Kit

REPAIRS AFTER APRIL 22 2019  CRASH


     Well John,  there was more damage than meets the eye.   I would recommend that the wing root ribs, at the dihedral break at the sides of the wing center section,  I recommend doubling up these root ribs in the first place,  for more strength.   I would not worry about the extra weight -  this model seems to still fly well with all of the extra weight I have already put in ...

Pic #1     2050     Mandrake and Bloodroot start waving their arms in the air ...   You can see that there is only one piece of the wing root rib left on the fuse.  The front nose of the rib and the rear two thirds of the root rib, are on the broken off wing.

Pic #2     2051     This angle shows a different view - time for M and B to do exploratory surgery by cutting away the tissue.

Pic #3     2053     There was more broken -  the right ring also - every thing was loose.   Only the forward part of the right wing root rib and Leading Edge were still glued on.

Pic #4     2093     M and B assemble the four wing holding jig plates of white "Ross Craft Board"  ( the handiest things I ever made ),  and then do the "Volga Boatmen", and pull the Speedster into the Hangar.

Pic #5     2096     M and B lower the fuse into the jig and use elastics to hold the fuse in place.

Pic #6     2098     The broken pieces.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 02, 2019, 11:37:22 AM
REARWIN SPEEDSTER   30"  Dumas Kit

REPAIRS AFTER APRIL 22 2019  CRASH    

     More progress ...

Pic #1     2099     Another view.   Even the cross member is not glued any more.

Pic #2     2101     The loose break is all around where the wing is glued to the fuse. The bottom of the wing root ribs, lift right off of the window roof ledge they were glued to.     Only the nose of the right wing root rib, is still slightly glued down ...   I can lift it off a little bit with my fingers, in the pic.

Pic #3     2102     First of all, we are white gluing all of the loose breaks, after trying to sand off the old 5 min epoxy   ??? ??? ,   I used,  to glue the wing to the fuse.    Both trailing edges were also broken.   A jar of coins  holds down the mating balsa surfaces, together, while drying overnight.

Pic #4     2103     Here I added an extra half-rib doubler to the right wing root rib -  for strength.   I cannot add the front of the rib, because the clear sun roof is in the way.

Pic #5     2109     M and B slide in the wing jig that was made from the other wing, and checked it for fit.   Very close - only one mm difference in height of the wing tips from the table.

Pic #6     2111     More additions to the wing jig  -  two crossmembers (with two balsa stick extensions later).

     This is taking a lot of thinking,  and days of abject pondering,  and staring blankly...   in the general direction of ...    the jig ...   a sort of lack of motivation, what with all the flooding and rain and cold  - even here too -  The Cricket field and Jackson Park are flooded out too.    You need good waterproof "Wellingtons" ( rubber boots ),  to walk the dog ...

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on May 03, 2019, 09:20:28 PM
That is a bit of a surprise Richard - I didn't expect that much damage. it's interesting to look at how damage is spread through a structure. Possibly the lightest way to design for crash survival or at least easier repair is to have shear connections between the fuselage and wing. To attach the wings to the fuse would mean just having a butt joint between a wing root rib and another rib on the fuse. The joint between the ribs basically designed to shear in a crash. No spars joining the wing to the fuselage. At best the break could be clean enough to just lightly glue the mating faces back together.
This method was used quite often on British FF glider polyhedral joints some years back without any dihedral braces, enabling the tips to break off with minimum damage. If the mating ribs were say 3mm each - then a thin 6mm wide band of tape around the ribs would be enough to hold the wings on and may release on impact.
The struts would need to be quick release - sliding joints at the fuse?
Just a few ideas.

John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 04, 2019, 12:25:15 AM
     Hi John.   I have heard about break away wings, but only for a biplane, for which I think,  the Bipe wings supposedly break off at the struts (sliding/loose glue fit of the  strut tips into the pockets on the wing?) [Sig "Customaire"  20 inch Bipe - Paul McIlrath design - I have the laser cut kit].
      So your method for a monoplane is to lightly glue the wing root rib to the root rib on the fuse, face to face, and this being the weak spot, in a crash it should break off right between the flat of the two root ribs faces?   It might work,  so long as it does not break off too easily,  or with too much difficulty.   A thin piece of tape to hold the root ribs together,  with just enough tack, or low sticking properties, that enable it to just rip off at the slightest impact, would also work theoretically.
     And Struts flying around in a crash, from breakaway wings, seems to be just as bad as spitting out the prop before landing, and that prop can also damage the plane, just like struts.   Lots to think about.
     This repair is going together well, now that I have figured out the jig setup, and got in two solid days of modelling.   The broken wing spars are all braced up with little balsa "Troughs" like I did on the other wing from another earlier crash.   It is all pretty solid now  - more pics to come.
      The rain stopped and the grass is really long and growing,  and soppy wet,  and they have not mowed it yet, and Saturday  and Sunday have good flying weather forecasts, so I should be able to get the Rearwin back into the park on Sunday for some finger wind flights, and to see if the wing is glued back on straight, and to see if the plane still holds its good trim for flight.  Should be no problem ...

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on May 04, 2019, 06:16:08 AM
Using tape or even a thin wrap of tissue perhaps to hold the wing to the fuse mounted rib would work with small locating pegs and a joiner  to take the flight loads.

Yes the struts would be a problem - but the scale outdoor guys would probably have a reasonable solution - sliding joints or even just magnets perhaps. This would at least restrict the damage a bit.

Good luck with repairs and hope you get out onto the KK grass on Sunday.

John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 04, 2019, 02:42:34 PM
REARWIN SPEEDSTER   30" Dumas Kit

REPAIRS AFTER APRIL 22 2019  CRASH    BROKE OFF LEFT WING

     Having a good solid jig setup was key to gluing this wing back on.   When I pressed the wing into the fuse for a test fit, the front half of the root rib fit the surfaces nice and flush,  but the rear of the wing root was short at the Trailing Edge break.   This was the AHA moment.  I decided to push the fuse from the other side, near the trailing edge,  about 1 or 2 mm over towards the broken wing (already secured with wingtip brace), and the broken trailing edge would then squeeze together and line up perfectly,  while the front of the root rib was still held flush to the fuse, by the wing tip holder.  In order to do this,  I mounted a huge balsa block on the other side of the fuse, and on top of this I put a small "pusher" block, to push the fuse over beside the Trailing Edge, and then pin down this pusher block, when the trailing edge break closed up on the glue.   Everything was now solid.

Pic #1     2112     The checkfit works, but there are balsa "troughs" to make to join the broken spars, and sandwich rib planks to make for the cross-grain breaks of the root rib.   The hard part was getting the rib breaks to butt up against each other when test fitting the wing.

Pic #2     2115   M and B just installed two balsa stick "extensions" onto the sides of the wing jig, in order to slide the wing on and to pin down a wing tip holder plate.

Pic #3     2114     The wing tip locating plate holder is test fitted ( it works even with clay still on the wingtip ).    The wing strut break, at the fuse, was clean at the balsa, and left the bare tips of the two  0.015" pieces, of reinforcing music wire, protruding past the balsa, so it located quite well.

Pic #4     2121     All the surfaces were white glued, and the wingtip holder is now pinned down in place to the balsa extensions.

Pic #5     2120     This pic shows the four broken spars and the root rib doublers all glued in place.  The  Top main spar and Bottom main spar is  1/8" X 1/16",  and the two top front spars are  1/16" square. Clothes pins are used.

Pic #6     2118     There are new (white) balsa pieces added to the wing center section for support, and it is allowed to dry over night.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on May 04, 2019, 07:34:34 PM
The jigging approach to your repairs is always interesting Richard. it's no wonder that the model flies just as well after repairs as it did before.

John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 06, 2019, 10:06:00 AM
REARWIN SPEEDSTER  30"   Dumas Kit

REPAIRS AFTER APRIL 22 2019  CRASH     BROKE OFF LEFT WING

     The left wing strut break, at the fuse, was a clean break of the balsa, and also left bare, the tips of the two small 0.015",  reinforcing piano wires,  and the bottom of the strut located just right, down onto this "stub".

Pic #1     2124     This is the installation of the balsa support troughs that extend from rib to rib enclosing the broken spars.
Pic #2     2125     I filled in these troughs where needed with small strips of  1/16" sq balsa.
Pic #3     2126     Here, the top three troughs are done.
Pic #4     2129     Bloodroot does the final sanding.
Pic #5     2130     The wing jig is now removed.
Pic #6     2132     The top is now tissue covered, ready for spray mist shrinking, with water.

LASTWOODSMAN
Richard



Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 06, 2019, 10:34:53 AM
REARWIN SPEEDSTER  30"   Dumas Kit

REPAIRS AFTER APRIL 22 2019  CRASH     BROKE OFF LEFT WING

Pic #1     2133     Underside view.  I still have the broken bottom spar to brace up.
Pic #2     2134     The bottom of the wing strut glued into postion just right.
pic #3     2135      Outside pic.
Pic #4     2136     I am just infilling in between and around the broken spar -  no room for a "trough" proper now.
Pic #5     2137     A few little pieces ...
Pic #6     2138     Almost done.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 06, 2019, 11:21:46 AM
REARWIN SPEEDSTER   30"  Dumas Kit

REPAIRS AFTER APRIL 22 2019  CRASH     BROKE OFF LEFT WING

Pic #1     2139     The bottom spar reinforcement is complete.
Pic #2     2141     Ready for the  3/32", eight strand,  12" long motor (prop hook to rear peg is 13"),  for finger wind testing.    Tissue is still un-shrink.
Pic #3     2158     Tissue is now shrunk.  Three outside pics of left wing reattachment repairs.
Pic #4     2159     I still have to spray it with Krylon Clear Gloss -  or just leave it as is  ...
Pic #5     2160    The tissue went on OK.    All ready for test flights   ;D   to see  IF     ::)   the wing went on straight.

LASTWOODSMAN
Richard



Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: Dan Snow on May 06, 2019, 11:49:57 AM
Good job Richard, hope she flies well!!


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on May 06, 2019, 08:19:02 PM
Back from the dead! Well done. I don't think you will have any trim problems with your attention to alignment accuracy.

Good luck.

John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 09, 2019, 08:28:26 PM
REARWIN SPEEDSTER  30"  Dumas Kit

FLIGHT REPORT #11
      SUNDAY MAY 5 2019
Six Flights     Pics  2142  to  2157

     Thanks Dan and John.
     On the walk out with the dog first thing in the morning,  I saw the arrival of a northerly migrating  "Red Admiral"  butterfly, on the light post  on the corner.   Until then I had only see three whites and one brown back in the butterfly meadows.   Surely this was a good  ;) omen.          And in this same day,  I did find the female Cooper's Hawk moving around on her new tree nest way up high.   I will be watching that nest with binoculars this summer.    
      We got home, and the weather was great.  We grabbed the plane and some clay weight, and headed out right away, as the Auxiliary Police volunteers are starting around noon in the park now, and patrol until dark, and the Cricket guys would be coming around noon until dark.
     We beat the Cricket players who later on, did take over the Cricket Field in the early afternoon.  It was so wet, I thought they would not play, but they did.
     This was the first flights since the broken off wing crash on  April 22 2019 in Reply #10 above.    All  the flights were long half circles mostly,  from  10 seconds on 200 winds, up to 20 seconds on  250 winds.    
Weather  9:15  AM   Sunny  52 deg F (50),   winds blowing from the North at 4 mph, gusting to 7 mph,  71% humidity.
     At least I got a couple of good early spring flying days in, and a some nice pics.  The weather since has been cold, windy, and rainy.  

Pic #1     2142     The walkout through Jackson Park to the Cricket Field.
Pic #2     2143     The Flower Garden has wine colored tulips.
Pic #3     2144     There is no wind on the flag by the replica Spit and Hurri.
Pic #4     2145     No wind and the Rearwin.
pic #5     2146    On the runway ready for the first test flight.
Pic #6     2147     Out flying just between the two Spruce trees.

LASTWOODSMAN
Richard
cont. on next Reply


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 09, 2019, 09:02:51 PM
REARWIN SPEEDSTER   30" Dumas Kit

FLIGHT REPORT #11       SUNDAY MAY 5 2019
Six Flights      
cont from prev Reply

     These flight were all finger winds.     Motor,  8 strands of 3/32"  rubber,   12 inches long, prop hook to rear peg is  13 inches.

Pic #1     2148     Coming through the bare tree on the right.
Pic #2     2149     Going straight for Trapper -  he is watching it !
Pic #3     2150     Trapper laughs at the planted soft landing, in the long grass.
Pic #4     2151     Way up high and coming down fast on final landing approach.   I was suddenly hoping for a runway landing, when it winds down the prop and turns to the right, and starts going straight down the runway.
Pic #5     2152    It flared perfectly as the prop ran down,  and GREASED THE LAST SIX FEET OF THE RUNWAY PITCH.
Pic #6     2153     And rolls to a stop just off the end of the Pitch, with the prop spinning to a stop just before I could get a pic.

Flight #1     200 winds   10 sec    Launched from SE, wind from North
Flight #2     200 winds   12 sec     Perfect  1 1/2  circle, landing with the wilnd from the North.     
Flight #3     250 winds,   10 sec     3/4  circle,  going right for Trapper
Flight #4     250 winds    20  sec     BEST FLIGHT  AND GREASES RUNWAY
Flight #5     250 winds    14 sec     Perfect long  1/2  circle way out there.
Flight #6     250  winds   18 sec     3/4 circle,  perfect landing.  I had launched from the SE because the wilnd had changed to the SE.

     The weather was now at  10:50  AM,    55 deg F (55),  winds blowing from the North East at  4 mph, gusting to 6 mph,  67% humidity.   I thought we had better stop,  and maybe come back later with the stooge and a long motor, and even if the Cricket guys took over, there was tomorrow morning with no wind also ...

LASTWOODSMAN
Richard
cont.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 09, 2019, 09:26:34 PM
REARWIN SPEEDSTER 30"  Dumas Kit

cont. from prev Reply
FLIGHT REPORT #11       SUNDAY MAY 5 2019
Six Flights    
cont from prev Reply

And here are the last four pics.

Pic #1   2054     Coming down low on landing.  The yellow dandelions have taken over the grass.
Pic #2    2055     Zooming along at tree top level.
Pic #3     2057    Another great day - no damage ...  deep grass ...
Pic #4     Red Admiral 2 Butterfly

LASTWOODSMAN
Richard

The end of Flight Report #11 May 5 2019
Still to post -  Flight Report #12  from May 6 2019


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 12, 2019, 11:59:57 AM
REARWIN SPEEDSTER   30"   Dumas Kit

FLIGHT REPORT #12                    MONDAY MAY 6 2019

     Today makes two flying days in a row.  8)   I got in 11  flights and the Rearwin worked fine, after re-attaching the left wing.   All flights were about  3/4  circle to one circle - all finger wound from 200 winds to about 250 winds,  giving  13 to 18 second flights.   Flight #6 was a BAD LAUNCH -  it went up too high, stalls, comes down and does not recover in time and CRASHES HARD WITH A LOUD CRACKING CRUNCH,  full song,  into the turf,  where there was not a lot of grass.   There was a tissue tear at the top of the wing center section along the left root rib.   I wiggled everything, but it all felt solid, so I kept flying, as the damage was not evident until I removed the tissue later.
     So anyways, here are some nice spring pics of Flight Report #12,  after which, the Rearwin had to go back into the jig in the Hangar for Mandrake and Bloodroot to work on ...

Weather   11:45  AM    68 deg F (68), winds blowing from the West at 6 mph, gusting to 9 mph,  49% humidity.

Pic #1     2161     The walk out.  Half of the trees have leaves started.
Pic #2     2162     They just mowed my Cricket grass flying field.
Pic #3     2164     Noseplant flip.
Pic #4     2165     Is that a City Parks Worker truck,  OR,  City By-Law Officer truck ?   ??? ???  :o   driving by ...
Pic #5     2166     In the big Willow going left.
pic #6     2167     Glidepath angle.

LASTWOODSMAN
Richard
cont next reply


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 12, 2019, 12:14:21 PM
REARWIN SPEEDSTER   30"  Dumas Kit

FLIGHT REPORT #12                     MONDAY MAY 6 2019
cont from prev reply

Pic #1     2168     The Rearwin is King,  patrolling around the Cricket Field, surveying its territory.
Pic #2     2169     Now the Grassmower guys drives by re-cutting the thick matted cut grass lines he already cut - thankfully he took off.
Pic #3     2170     The proud Speedster soars through the gray skies of spring.
Pic #4     2171     Lots of green scenery.
Pic #5     2172     This is the outward result of the Crash -  the "tissue tear" -  but it was much more damage than that inside ...
Pic #6     2173     Buzzing right along.

LASTWOODSMAN
Richard
cont


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: MKelly on May 12, 2019, 12:19:32 PM
Pic #3 is a great shot Richard.  You're certainly getting your money's worth out of that Rearwin - there's a lot to be said for sticking with a model till it becomes like an old friend.

Mike


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 12, 2019, 12:23:17 PM
REARWIN SPEEDSTER   30" Dumas Kit

FLIGHT REPORT #12               MONDAY MAY 6 2019
cont from prev reply

     And the last six pics.   Two flying days in a row does not come by very often ...  at least I did not break the wing off again ...    ;D

Pic #1     2174     Perfect soft landing.
Pic #2     2175     Gray skies and scenery.
pic #3     2176     Final landing stop in deep fluffy grass.
Pic #4     2177     Going left low over the "Pitch".
Pic #5     2178     Another soft dream landing.
Pic #6     2179      Flower garden Tulips and grass growing up through the straw.

      I thought it was a good set of flights, and I subconsciously tried to convince myself, that the crunch of the crash, was just the tissue tear breaking, but once it was in the jig,  with the tissue cut out, there was more damage requiring further surgery.
     Repairs to follow.  
    
     Get outside and fly !!!

LASTWOODSMAN
Richard
End of Flight Report #12


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 13, 2019, 11:48:31 AM
REARWIN SPEEDSTER   30"   Dumas Kit

REPAIRS AFTER MAY 6 2019  CRASH in Flight Report #12

Pic #1     2185     Mandrake and Bloodroot set up the four fuse plate jigs, lower the Rearwin into place,  and examine the tissue tear and damage.

Pic #2     2186     They secure the plane nice and tight using elastics stretched over the fuse,  and are attached/grounded to round head pins that are stuck sideways into the building board.

Pic #3     2187      The white crossmember by the toothpic was broken out of its glue joint,  and there is (I discovered after I was done) a vertical complete cross grain break of the center rib front, just under all of the window glazing, that I cannot get to, unless I replace that one piece window again (which is all gummed up on the inside from the lubed rubber motor spitting off the lube).  So we just started gluing in some heavy duty white balsa supports, and hope for the best. 

Pic #4     2189     All of the supports are now in.   Bloodroot sizes up and cuts out some "stress monocoque" tissue covering for added strength.

Pic #5     2191     A single small bead of thinned white glue (70% glue, 30% water), was painted down on the edges, and the tissue carefully placed into position and lightly pressed down -  that is all glue you need - I press down all the wrinkles, with a small moistened edge of balsa.   Then Bloodroot gets that small brush loaded with very thin white glue to water mixture - almost pure water - and he paints the edges very carefully to seal the deal.

Pic #6     2193   All has dried overnight.

LASTWOODSMAN
Richard
cont


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 13, 2019, 11:56:40 AM
REARWIN SPEEDSTER   30"   Dumas Kit

REPAIRS AFTER MAY 6 2019  CRASH in Flight Report #12
cont from prev Reply.

Pic #1     2194     Front view.
Pic #2     2195     Mandrake and Bloodroot shake hands after another job well done. They are lefties.
Pic #3     2209     Ready to fly.
Pic #4     WEATHER FORECAST  TUESDAY MAY 14 2019   Weather forecast for tomorrow Tues may 14 2019.   Time to make a brand new 22" motor, stretch it,  lube it,  test some motor runs in the plane on the table stooge,  and bring to the field, my winding stooge and back pack, and force myself to start with low winds and work my way up to flights in the 20 seconds, or so, and if all is good,  start cranking in some real winds,  and try to get past 30 seconds -  if I get 30 seconds, the next flight will be full turns to try and beat 43 seconds  ....

Bare Plane - no motor, includes prop block and prop and rear peg
                                                   =    105.58 grams
12" motor 4 strands of 3/16"           =   6.19  grams
Total all up Weight                            =    111.77  grams
Total Wing Area                                 =     135.4  square inches

Total wing loading   weight divided by wing area  
                                    111.77 grams  /  135.4  square inches

   equals  0.83 grams   per square inch, and it still flies!!

     I did get this Rearwin out for its  13th flight Report on Sat May 11 2019,  for 6 flights all finger wound.   Here is a link to these flights,   in  Reply 1068 and Reply 1069,   in "Went flying",  Your Birds in Flight, General Forum,  here https://www.hippocketaeronautics.com/hpa_forum/index.php?topic=438.msg242204#new
Now my log is all caught up.   Time to get my motors in order ...

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on May 13, 2019, 09:00:51 PM
What a run you've had with that model Richard. It must have set a record for number of flights.

John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: flydean1 on May 13, 2019, 09:44:55 PM
A real education can be had by going back to the beginning.  You can follow how Richard learned about such things as the forward peg, winding tubes, model structure (especially learning how to make landing gear survive) and flight trimming.

He has gotten more flying out of that battered but still proud Rearwin than most of us would have.

Richard is a real inspiration for us all.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 14, 2019, 03:39:34 PM
REARWIN SPEEDSTER    30"   Dumas Kit

FLIGHT REPORT #14
         TUES MAY 14 2019

     Thanks for the nice comments John and flydean1.   This Free Flight rubber Hobby just happened to fit right in with me taking my dog out to the park, for walks,  3, 4, 5 times a day.   So that is the main reason why I am a dedicated small park flyer ...

NEW MOTOR AND BENCH TESTS

     Last night,  Mon May 13 2019,  we worked late building a new motor, with the last of my half pound of  3/16" rubber.   Good thing is that I also just got my mail order "Tracking Number" of my big order coming from George at Volare.  
     This is the motor we made and installed,  in preparation for the weather forecast coming true ... today on the morning of Tues May 14 2019.

Pic #1     2212     That is the last of my  3/16" rubber.    My old motors already made up.
Pic #2     2213     Mandrake and Bloodroot "string bind" the ends of the rubber motor.
Pic #3     2220     The motor is  22"  long.
Pic #4     2221     Mandrake and Bloodroot stretch and lube the motor.
Pic #5     2222     The new  22"  four strand  3/16"  motor is installed for bench stretch-winding tests.
Pic #6     2250     Bench Test Results

Flights coming up ...

LASSTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 16, 2019, 09:57:13 PM
REARWIN SPEEDSTER    30"   Dumas Kit

FLIGHT REPORT #14          TUES MAY 14 2019

SEVEN FLIGHTS  STRETCH WOUND IN THE STOOGE

     At  10:15 AM Tues May 14 2019 was 48 deg F (45),  with winds blowing from the NorthWest at 6 mph, gusting to 9 mph,  58% humidity.    This is what I have been waiting for ...  all winter ... and the grass was still not mowed yet (it was to be mowed the very next day).
     We left the apt at 10:45, packed up with the winding stooge and a 15:1 winder, and a fresh, stretched and lubed, four strand, 22 inches long,  3/16"  motor (prop hook to rear pegs is 13"),  we made the night before.

Pic #1     2227     The walk out.  This is the tree with the Cooper's Hawk nest.  I have seen her tail sticking out from the nest many times when she is laying and incubating.
Pic #2     2228     This is the top of that tree with the nest.
Pic #3     2229     And here are the Monarch trees of Jackson Park -  three Metasequoia or Dawn Redwood trees (Metasequoia glyptostroboides), with their linear deciduous needles just starting to grow out.
Pic #4     2230     Here is my setup on the Cricket field.    I lift that pink ribbon into the air, to be sure which way the wind really is blowing before launch.
pic #5     2231     Flight #2     Trapper is watching it finally starting to climb on launch.
Pic #6     2232     Flight #2    Here it is coning back towards me, from circling left,  3/4  of a circle into the flight. 

Flight #1     330 winds     5 seconds   Short sluggish flight out and descending down -   not enough uuuuummmfff !!   it takes a couple of  seconds for the plane to catch up to the wind, and power further through it, into the "relative wind" .

Flight #2     495 winds     10 seconds     Flew left  3/4  circle.   It was a downwind launch Pic 2231,  that barely made it up without hitting the ground.   I put more clear Scotch tape on the noseblock bottom to hold a bit more downthrust.

Flight #3     600 winds     4 seconds and down into the grass on the down wind launch.  It needs more lift or more winds.

Flight #4      750 winds     27 seconds  BEST FLIGHT OF THE DAY  1 1/4 circles, three pics, the last one sitting.   2233   2234   2235
2233     Coming back to me, and flying TOO CLOSE TO THE TREE LINE
2234     Here it goes flying right back in behind me just in front of both stands ...  close call   ???
2235     where it landed
This flight was too close to the trees, so I moved out further into the field for the next launch.

LASTWOODSMAN
Richard
cont.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 16, 2019, 10:05:12 PM
REARWIN SPEEDSTER   30" Dumas Kit

FLIGHT REPORT #14          TUES MAY 14 2019

SEVEN FLIGHTS  STRETCH WOUND IN THE STOOGE
cont from prev reply

Flight #5     750 winds     16 seconds   Pics  2237    2238  This was a perfect full circle and landing.

Flight #6     750 winds     15 seconds   Pics  2239   2240    Flight was  4/5  of a circle.   A little high on the launch angle, gave a nice slow flight at the end, with a right turn and straightening out at the end to a perfect landing in the tall grass.

Flight #7     750 winds     19 seconds     Pic  2241 flying   2242 sitting    The flight was a full  5/6  circle, but then it kept going and going (it had come around into the calm leeward wind from the perimeter tree line).    On and on it flew, right in through the tree line,  and lands, luckily missing all of the tree trunks.   Playing with disaster again ...   :-\

Pic #1     2233     Flight #4     27 sec  -   longest flight of the day -  OH NOOO - it's still flying into the tree line ...
Pic #2     2234     Flight #4     The it goes right in behind and above me ...
Pic #3     2235     Flight #4     Lucky landing!!
Pic #4     2236     Here is a pic of how I keep the nose block on, when using long motors (when the rubber motor length is longer than the prop hook to rear peg distance).    I use three pieces of clear Scotch tape, to hold the nose block to the fuse nose infill planking.
Pic #5     2237     Flight #5   Nice height.
Pic #6     2238     Flight #5  Coming in for a nice landing.

LASTWOODSMAN
Richard
cont


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on May 16, 2019, 10:15:31 PM
REARWIN SPEEDSTER   30"   Dumas Kit

FLIGHT REPORT #14          TUES MAY 14 2019

SEVEN FLIGHTS  STRETCH WOUND IN THE STOOGE

cont from prev reply

     I thought I heard a break of rubber, and I saw a loss of power on that last flight.
          After this flight, I examined the motor -   I just pulled it out and stretched a section with both hands' fingers.   Low and behold, I found a nick in the stretched rubber.   The wind gust speed seemed to be really picking up (18 mph),  so we started packing at  11:48 AM,  and got home at noon.

Pic #1     2243     There is the nick in the rubber, about an inch up from my thumb, the right strand, on the right side of the strand.
Pic #2     2244     There is the wind on the flag.   Trapper heard his tail hit the strut when he rolled over, for this pic.
Pic #3     2245     Here is the crack.   Easy fix.
Pic #4     2269     I glued it together with 5 min Epoxy and stuck four short 0.015" pins of  music wire, to hold it all together, and snipped off the ends.
Pic #5     2256     Ready for the knotted 12" motor, and the next flights of Flight Report #15

     The weather now at noon was  59 deg F (57),  with winds from the NorthWest blowing at  12 mph,  and gusting to  18 mph,  48% humidity.
      I think Trappers tail hit the wing strut when he rolled over for a pic   -  the left wing strut attachment at the fuse did not hold (?)  -  nothing that a couple of 0.015"  pins of music wire cannot cure ...
          Well,  that was some fun flying.  I had to fix the left wing strut attachment to the fuse, which worked out OK.  I am a little late with this Flight Report #14, as on this AM, Thurs May 16 2019,   I got out flying for Flight Report #15 first thing this morning.

Put some winds into it ...  and launch it ....   ;D ;D

LASTWOODSMAN
Richard
End of Flight Report #14


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on June 02, 2019, 11:50:19 AM
MY VOLARE ORDER HAS ARRIVED

     Here are some pics of the order.

Pic #1     2327     The full order including the 24" Cessna C-34 laser kit.
Pic #2     2329     Note the different shape of blades.   
Pic #3     2330     Another view angle.
Pic #4     2328     Comparison with my broken black 9" Guillow High Torque prop.

     Now for some testing of these new, differently shaped props.   And I now have a new supply of  3/16"  rubber.   ;D ;D ;D   Here we go ...   :D

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: fred on June 02, 2019, 12:19:17 PM
Wow lotsa 'stuff'.
 A good day for the shop... given the ~240$ parts list


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: stovebolt on June 02, 2019, 05:57:07 PM
MY VOLARE ORDER HAS ARRIVED

 
LASTWOODSMAN
Richard

Richard
 I too ordered the Cessna, what are your thoughts on removable wings to reduce damage?
Pat


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: Crabby on June 02, 2019, 06:17:39 PM
I always wanted to see what would happen if I glued the pilot halves together and pumped 'em full of expanding foam. Of course there would have be an small hole drilled in the pilots crown to let the foam escape some during expansion!


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on June 27, 2019, 01:05:02 PM
REARWIN SPEEDSTER  30"  Dumas Kit

     Sorry for the absence, but I fell behind on my Flight Reports, and sort of lost my mojo, after finally getting a new prop and new rubber onto the 30" Rearwin Speedster, and then actually smashing up my old friend, for what could sadly  :(  be her last flights, on June 14 2019, which is Flight Report #19 (yet to post).   So I have since just been sitting back and watching and browsing all the inspirational builds and flights, and contemplating flying scale-looking models ...
     I already posted Flight Report #15, of May 16 2019,  in "Went Flying" Reply #1073 and Reply #1074 ,  link here  https://www.hippocketaeronautics.com/hpa_forum/index.php?topic=438.1050
     I still have three small Flight Reports with some pics, for Flight Report #s 16, 17, and 18,  May 18, May 26, and May 31,  respectively, that I will catch up on shortly.   And then the career ending crash(s) on June 14 flying in too much wind.  Arghgghhghgghhrrrr ...   :'(
      I have always gotten my inspiration from birds, and especially birds of prey.   The good news from Jackson Park is, that the new Cooper's Hawk nest (which is just a stone's throw from my Cricket Wicket Flying Field), hatched four baby hawks this year, which are now as big as the parents, and fully feathered, and flapping around, and climbing out onto branches, ready to fledge any day now - they had three young fledge last year from a different nest.   You should see how spectacularly   :o   , the 29" to 37" wingspan (females are bigger than males) of this fast, powerful, agile   8)  hawk, comes coursing and rapidly flapping, at great speed, over the many recently planted quite small trees surrounding the Spitfire and Hurricane replicas, and then gliding low and very fast at high speed, with wings spread out, almost right to the base of the trunk of the large nesting tree, only to then swoop up, to almost straight up, and way up high, right up to the nest, and slowing down right at the nest, and softly popping up   :o  in front of the chicks to a soft sudden landing   ::)  at the side of the nest.  
     Here is a good link to Cooper's Hawks and how the babies look and develop   http://www.coopershawks.com/lh_breeding.html#fledglings

Pics :    COOP A,  COOP C,   MATES,  COOP D,  COOP E,  COOP F

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on June 28, 2019, 02:43:06 AM
Bad luck re the Rearwin Richard. Still if you have the plan another would be relatively easy to build.

The Cooper's Hawks are beautiful birds - did they ever show any interest in your model flying?

John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on June 30, 2019, 03:49:57 PM
     Hi stovebolt Pat.  I recall some talk of breakaway wings a while back but no thread was started.   "Removable wings"  would be a great subject for a topic.  Probably best for its own thread so every one could chime in on it.   No experience with it here ... yet.
     Hi Crabby - let us know how that expandable foam works.
     Hi John.    The Coopers Hawks never went after my models (only 3), but when I see them coursing through the park, high over the Spitfire and Hurricane replicas, the black Starlings (invasive species from Europe), Sternus vulgaris, that are nesting in the left wheelwell of the Spitfire, get very frightened and scared to death,  and you should hear them SQUACK when the Coops are flying through :o :o, even though the Coops are not going after them at the time.

4 min video    Coopers Hawk :  A Reckless Predator
https://www.bing.com/videos/search?q=coopers+hawk+hunting&&view=detail&mid=D31CF58657AC05D22B08D31CF58657AC05D22B08&&FORM=VDRVRV

     Yes John, I could build another Rearwin.  In addition to all of the reinforcing that I have already done,  I would also double up the center ribs, and double up all the top spars on either side of the spars, because that is where all of the pressure is directed now that everything else is reinforced.
     Well, I have gone through all my log notes and pics, and I have Flight Report #16 organized and ready to post,  from May 18 2019, when the grass was gloriously high.  Now, the City workers have caught up with all of the grass mowing, and we just had a week of heat wave, mid 80s Fahrenheit, feels like 100 deg F, and now another week of heat wave also.   We should consider ourselves lucky though, seeing that France has 115 degrees F !!!!   (real feel ~ 135 deg F ?  )


LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on June 30, 2019, 04:31:28 PM
REARWIN SPEEDSTER  30"   Dumas Kit
FLIGHT REPORT #16                 SAT MAY 18 2019

Nine flights all hand wound -  longest flight about 12 seconds.
 
     Well, it was raining all  morning,  so Mandrake and Bloodroot made a new motor to experiment with  --   8 strands of  1/8"  rubber,  12" long..  (prop hook to rear peg is 13"),  while we were waiting for my  3/16" rubber order to arrive (I had run completely out).

NEW MOTOR BENCH TEST using finger winds only
100 winds =  7 sec power run
100 winds = 7 sec
130 winds = 8 sec

NEW MOTOR BENCH TEST using a  15:1 winder
180 turns (12 handle turns on winder) =  8 seconds
225 turns (17 handle turns on winder) =  11 seconds, and this was the MAX number of turns I was able to muscle into the motor with the winder.

     Mandrake and Bloodroot loaded up the motor and Trapper and I went out flying to see if there was any noticeable difference in using a motor of 1" cross section of rubber ( eight strands of 1/8" rubber), as compared to a 3/4" cross section of rubber (  four strands of 3/16" rubber).
     The weather was at 12:45 PM, 57 deg F (feels like 57 deg F), Winds blowing from the East at 11 mph, gusting to 16 mph, 82% humidity.
     The Cricket Field was full of players, so we went to the "American" baseball field, in the far SouthEast corner of Jackson Park, with long grass in the outfield (the infield is hard packed gravel   :o :o ).   The object was to try to keep these flights short, of 7 to 10 seconds of duration, to keep these flights of one long quarter circle to one half circle, away from the fences and off of the hard packed gravel infield, and to have it land on the tall thick lush grass of the outfield -  which took a lot of careful thinking and repositioning of the launching spot in order to do so.   


Pic #1     2271     Mandrake and Bloodroot make the new motor.
Pic #2     2274     Deep grass in the outfield.
Pic #3     2275     Short flights.

cont in next reply

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on June 30, 2019, 04:41:31 PM
REARWIN SPEEDSTER  30"   Dumas kit
FLIGHT REPORT #16                 SAT MAY 18 2019
cont from prev reply

      We got in a total of nine flights, each lasting about 7 to 11 seconds.   I found that the extra power, from the 8 strand of 1/8" motor,  really shot the plane out fast, and it ran out of rubber up too high, and would then plummet down into the long grass.  A 3/16" motor is the better way to go for a slower flight.

These next four pics are from the "CLOSE CALL"  flight.

Pic #1     2276     Just to the right of the Indoor Tennis bldg, right on the tree line, turning left and heading for trouble -  I should have launched  it  more to the right.   
Pic #2    2277     Just above the fence, to the left of the gray hydro pole.  It went too far left, and as the prop ran out, it turned to the right, and skimmed right along the very top of the fence for about six floating feet, where the sharp chain link wire cuts are.  ??? ???   I thought it was going to rip the fuse from front to back.  :-\
Pic #3     2278     Then the Rearwin just barely hops over the fence, and lands just on the other side of the fence -  you can just make it out through the fence.
Pic #4     2279     And this is how it landed  ...   Whew!  :P    A close call   8)  with a can opener death.

cont in next reply

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on June 30, 2019, 04:46:07 PM
REARWIN SPEEDSTER 30"  Dumas kit
FLIGHT REPORT #16                 SAT MAY 18 2019
cont from prev reply

     Of course, the flights were too fast, as one would think when you use and extra third of rubber, more than the  four strand  3/16" rubber that gave me better, slower flights, where the rubber transitions better to running out the rubber more slowly, and preserving a forward aspect of the flight on landing -  as opposed to straight down almost.

Pic #1     2280     Going left.
Pic #2     2281     Out high going left.
Pic #3     2282     40 degree banking turn left.
Pic #4     2283     Ready to plummet at the end of the flight.
Pic #5     2284     Bad pic -  plummeting down on a 45 degree angle.
Pic #6     2285     Here is how it finishes high and then plummets down.  

    When we got back, the weather was at 2:25PM,  61 deg F (feels like 59 deg F), Winds blowing from the East at 8 mph, gusting to 12 mph, 77% humidity.   And there was no damage, thanks to the deep grass.

LASTWOODSMAN & Trapper
Richard
End of Flight Report #16

PS   All of this nice green space all the way to the Blue Indoor tennis court building, is two American baseball diamonds.    We are now losing all of this green space, because the City is using it to build a new Greenhouse because the old Greenhouse is falling apart.  Goodbye to the worm feeding grounds for the countless large flocks of many migrating birds, and the ones that live off of it ...  Jackson Park shrinks ever further.  Plus, the middle of the baseball diamonds and Cricket field had no lights at night - it was great for stargazing ...


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on July 02, 2019, 11:49:03 AM
REARWIN SPEEDSTER  30"   Dumas kit
FLIGHT REPORT #17                 SAT MAY 26 2019

     Mandrake and Bloodroot took off the 8 strand 1/8" rubber motor, and built a new 4 strand, 3/16",  twelve inch long, rubber motor, knotted from some old rubber, while waiting for the new rubber order.   Prop hook to rear peg is 13 inches.   So we were just going for some hand wind flights.
     We flew a total of 10 flights.   The first three flights were in the Cricket Field.   The Cricket players had their stakes in, but they let me get in three flights before everyone got there for the game.  Then we went to the American Baseball Diamonds in the back, where the grass was really big.   Just finger wind flights, no records, 7 to 12 second flights, keeping it in the field, with nice soft landings, just to get out there in the emerald greenery.   I tried to plan the flights so as to not land on those wooden peg stakes on the Cricket Pitch.

At 10:00 AM, the weather was 63 deg F (feels like 63), winds blowing 7 mph from the NorthEast, gusting to 11 mph,  72% humidity.

Pic #1     2293      The walk out through Jackson Park.     
The Cricket players allowed me three flights in the Cricket Field before they all showed up and started warming up for the game.   I tried not to land on those wooden pegs on the pitch.
Pic #2     2294     Sailing out nicely over a carpet of green.
Pic #3     2295     Full wet Spring flight.
Pic #4     2296     The Rearwin is flying half way up the trees, just above and to the left of the turquoise (?) outdoor tennis fencing.
Pic #5     2297     The dandelion flowers are almost done.

LASTWOODSMAN
Richard
cont on next reply


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on July 02, 2019, 11:54:08 AM
REARWIN SPEEDSTER 30"   Dumas kit
FLIGHT REPORT #17                 SAT MAY 26 2019
cont from prev reply

Now we are at the Baseball Diamond field for flights four through ten.   Really nice grass here too.

Pic #1     2298     Two continuous pics of the Base ball Diamond field.
Pic #2     2299     They tried to mow the edge of the grass but it was too wet.   The Speedster is flying just  to the left of the top of the lone hydro pole.
Pic #3     2300     Here is a lucky landing, LOL  ie.  NOT in the mud.   ;D
Pic #4     2301     Another view -  Trapper and my backpack are in the background from where it was launched.
Pic #5     2302     The grass is nice and deep and thick, even after mowing ....

LASTWOODSMAN
Richard
cont on next reply


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on July 02, 2019, 12:00:18 PM
REARWIN SPEEDSTER  30"   Dumas kit
FLIGHT REPORT #17                 SAT MAY 26 2019
cont from prev reply

Pic #1     2303     Another flight goes out sailing left, and staying in the grass outfield, and staying short of the fence.
Pic #2     2304     Soft landing.  The plane sits showing up white on the intense, verdant green grass, way out there at the bottom of the fence line.
Pic #3     2305     Close up of the above landing.
Pic #4     2306     An even closer look and the landing.  How is that for color?
Pic #5     2307     The Rearwin resting on a towel (things are still very wet),  fluffed up and supported by a bed of high grass.
Pic #6     2308     Another flight out low and turning left.

LASTWOODSMAN
Richard
cont on next reply


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on July 02, 2019, 12:07:54 PM
REARWIN SPEEDSTER  30"   Dumas kit
FLIGHT REPORT #17                 SAT MAY 26 2019
cont from prev reply

Pic #1     2309     I can't resist these Springtime grass pics.
Pic #2     2310     On the walk back home now.  The Cricket players are about to start a game.
Pic #3     2311     Wery little wind on the flag by the Spitfire and Hurricane replicas, on the walk back home.
Pic #4     2312     Here we are laying around the deep and freshly cut grass on this grassy knoll, atop which sit the Spit and Hurri replicas.
Pic #5     2313     Really getting hot and muggy -  you really need good "Wellingtons" (rubber) boots when the park is this wet though.

       I think just like everywhere else, we had a LOT of rain this spring, and the ground was always saturated - even a small rainfall would cause standing water puddles, and farmers' fields got flooded out, putting them behind planting by at least one month.
       But looking back on it all now, these are, right now, the good ol' days of Free Flight rubber powered small park flying.   :D ;D  There are still no actual signs prohibiting flying   ???  , in our park yet, to spoil it all ...

LASTWOODSMAN
Richard
End of Flight Report #17 Sunday May 26 2019


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on July 03, 2019, 03:41:21 PM
REARWIN SPEEDSTER  30"   Dumas kit
FLIGHT REPORT #18                 FRI MAY 31 2019

     The weather at  10:45 AM  was  64 deg F (64),  winds blowing from the South West at 4 mph, gusting to 7 mph,  73% humidity.
     We had eight flights, all finger wound, using an old 12" four strand,  3/16"  knotted rubber motor (prop hook to rear peg is 13").     The flights were all 12 to 20 seconds long, with the max flight of 20 sec using 250 finger winds of the motor.
     Here are the pics ...

Pic #1     2314     The walk out to the Cricket Field.
Pic #2     2315     The grass has gone to seed.
Pic #3     2316     Freshly mowed long grass on the Cricket Field.
Pic #4     2317     Still quite soggy out there.
Pic #5     2318     Climbing left.

LASTWOODSMAN
Richard
cont on next reply


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on July 03, 2019, 03:47:52 PM
REARWIN SPEEDSTER 30"   Dumas kit
FLIGHT REPORT #18                 FRI MAY 31 2019
cont from prev reply

Pic #1     2319     Empty shot of the Cricket Field.   The land in our County is as flat as a board, just like the Cricket Field.
Pic #2     2320     Leveling off.
Pic #3     2321     Crosswind left turn.
Pic #4     2322     Hard to see - in line with the Spit and Hurri, and going down left at 45 degrees.
Pic #5     2323     Two colors -  green and blue.
Pic #6      2324     On the walk back home.   

     All was going well, but the rubber broke a strand, so we went home.

     We got home at 12:05 PM  and the weather now was 72 deg F ( feels like 77 deg F ),  winds blowing from the South West at  6 mph, gusting to 9 mph, 65% humidity.

LASTWOODSMAN
Richard

The end of Flight Report #18

One more Flight Report ( #19 ) left to post - the crashes of Friday June 14,  2019.


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: OZPAF on July 03, 2019, 08:28:01 PM
It's good to see this log of flights being completed Richard. You do deserve a larger flying area.

John


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on July 05, 2019, 06:40:11 AM
     Dear Ratz, would you please fix up the pics in my thread?   They are now not showing expanded from a blank thumbnail, like they have always done.   I have to click on them to get them to even show, right beside pics that do work.  Why are they doing that?   Am I doing something wrong?
Here are a three examples -  there are lots more ...

Pics not working,  Pics not working 2,  Pics not working 3

Thank you.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on July 12, 2019, 04:10:25 AM
Hi Ratz.   I am still having problems with my pics in this thread.   They are still not working.   They worked fine before.   Am I doing something wrong?     Can I please get some help with this?   Thanks.

LASTWOODSMAN
Richard


Title: Re: REARWIN SPEEDSTER 30" Dumas Kit 326 Flight Reports
Post by: LASTWOODSMAN on July 14, 2019, 02:23:24 PM
Hi Ratz.  My pics seem to be working  fine now.   Thanks so much.

LASTWOODSMAN
Richard