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Author Topic: Went flying.  (Read 229349 times)
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Beazld
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« Reply #1700 on: September 28, 2021, 06:31:34 PM »

Here’s a pic of the maiden flight of my Twin Cloud Tramp. I decided to try my hand at a rubber twin so the CT was a logical choice to give it a go. I built it for the International CT day but we got rained out. The flight ended in a small cedar tree but I retrieved it successfully. Here’s a link to the flight
https://m.youtube.com/watch?v=TXIIP00RPr4
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« Reply #1701 on: September 28, 2021, 09:03:28 PM »

Great flight - perhaps the original should have been a twin Smiley

John
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« Reply #1702 on: September 29, 2021, 10:54:18 AM »

Thanks! Makes me want to try a twin pusher Smiley
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« Reply #1703 on: October 05, 2021, 12:10:07 PM »

I got my KK Dolphin out to the field with a hi-start made out of 1/16" rubber instead of the 1/8" I had been using. Refer to my videos from last summer.  Much to my abject amazement, the thing rocketed to the top of the line 100' off the ground and weaved back and forth a couple of times before being released from the towline with an audible "twang".  Then it turned into the light breeze and began to climb more! It floated OVER the glider-eating trees and mercifully started a phugoid which ultimately brought it down over by the softball fields. I didn't get a moment of it on video, but I can't fly that airplane in that park any more...it's too small, and it's the biggest field around.  Except, of course for the billions of acres of corn and soybean fields.  I think my FF glider dreams will have to be tempered with a little R/C control if I want to fly anything bigger than my solid balsa cat-gliders.

But I'm here to report the 1/16" rubber was THE ANSWER. The flight was just thrilling. Grin
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billdennis747
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« Reply #1704 on: October 05, 2021, 12:21:02 PM »

Hmmm - sounds like you twanged it up into a monster thermal! My Dolphin is enlarged to 36" and I use 1/8".
Don't flying Dolphins look great!
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« Reply #1705 on: October 06, 2021, 12:40:29 PM »

I have mentioned it before, but I spent my youth building unflyable Guillow's rubber powered scale models before "graduating" into plans-built scale models.  I never built "simple" gliders or any other model with performance in mind.  As a result, I spent zero time flying them.  Now that I'm old, I am discovering how much fun can be had with these "simple" models.  Simple to build.  Less simple to make fly properly. The Dolphin has real presence in the air.  I love the way it looks like it belongs up there. I wish I did a better job building the model, but now that it's all twisted and patched up it's my favorite plane.
There is a giant field a little south of me...maybe the weather will hold out this fall...
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Flyguy
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« Reply #1706 on: October 13, 2021, 05:29:31 PM »

Tom and I got out today for some flying, a little overcast but not too bad, fairly calm. Got a great flight with the KK Ace but the camera was pointing too far down and it was just empty sky, so blew that one, but I got a decent video of my P30. Also did some tests of the Sky Voyager, one flight is in the video. Both Tom and I also tested our Ritz, I had some nice tests but stalled on one and broke the tail boom, for the second time, and after I reinforced it with hardwood! I'm going to use a carbon fiber tube this time, so no more breaking (except for somewhere else). Same thing happened to Tom - he also broke the tail boom twice and replaced it with hardwood, today he broke the other end (the noseblock) instead! So no Ritz video, maybe next time.

https://www.youtube.com/watch?v=kVR1pIb_UaM
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« Reply #1707 on: October 13, 2021, 08:26:16 PM »

Bit of bad luck Larry with the Ritz! It must have been a bit of a test for the eyes in that overcast weather following the P30 and the Sky Voyager. Your P30 certainly does fly well.

Hope you both get some more flying weather soon.

John
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« Reply #1708 on: October 13, 2021, 10:57:53 PM »

Every time I see one of your flights among all of the tall city buildings I am just blown away.  Thank you for all the entertainment!
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« Reply #1709 on: October 13, 2021, 11:56:36 PM »

Thank you, I'm so glad I'm able to fly in the city, thank goodness for this small park!

John -
Bit of bad luck Larry with the Ritz! It must have been a bit of a test for the eyes in that overcast weather following the P30 and the Sky Voyager. Your P30 certainly does fly well.

John

Thanks John - I already have the Ritz's tail boom fixed, used a carbon tube this time so it won't break again, something else will have to break! With respect to the overcast weather, it's a good thing I remembered to use my other camera or it would have been going in and out of focus all the time. Really had a nice KK Ace flight, 2:44 and 210 feet, it's a shame it was completely out of frame for 90% of the flight, I didn't set the camera angle correctly doh!
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Pete Fardell
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« Reply #1710 on: October 14, 2021, 05:30:38 AM »

Terrific stuff, Flyguy. I love the use of the fence for winding. Also like the thought of someone in one of those high offices absently looking out the window and suddenly seeing your P30 cruise by!
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« Reply #1711 on: October 14, 2021, 11:01:18 AM »

Yes, I really like fence winding, I stopped bringing my stooge years ago. It's really good for big stuff because you can pull as hard as you want, fence isn't going anywhere.

Actually, someone who lives in the high-rise that's usually in the middle of the background came down to the field years ago and told me he couldn't believe seeing an airplane go floating by his window! I'd love to see that, too bad I can't fly and be in the building at the same time.

PS - I always enjoy your beautiful scale builds Pete, thanks for the pictures.
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« Reply #1712 on: October 14, 2021, 11:29:34 AM »

I, too, collected the bits and pieces for an R/C P1B1 and was waiting to see yours fly.  I flew one as a FF last summer...It had the most beautiful flight characteristics, but I lost it in the top of a tall tree and it was subsequently swept away by a thunderstorm. The second one I bought/built simply refuses to fly.  It acts like there is a nasty warp in a wing, but I'll be darned if I can see it.  Angry It refuses to climb and keeps falling off on the right wing under full power (4 strands of 1/8" just a little longer than the fuse). And yes, I've kicked the CG forwards, backwards, and sideways.  Number three is still in the box.
I watched your video on modifying the P1B1.  Did you end up using a bobbin and fancy hook, or did you stick with the stock arrangement? How much rubber?
It looks like the P-30 is perfect for this kind of flying.  So glad to see you out and about again.  It is shocking to see so much activity around your flying field.  My field is usually deserted save for the swallows investigating the balsa intruders.
Stay safe!
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« Reply #1713 on: October 14, 2021, 12:21:22 PM »

Yes, both Tom and I have found the P1B1 to be a little tricky to trim, but Ok once you get it going. I used an F1G bobbin in the front with the attachment, photo attached, and 10 strands of 1/16". Unfortunately, the F1G Piserchio rear hook is 1/16" too big to fit in the 1/2" fuselage, so I just used a small piece of tube, then insert a rear peg. It's a pain in the neck to wind outside the plane because I can't use the Piserchio hook, with someone else there it's just much easier to wind it inside the plane.

The main problem with the Voyager, in my view, is that the fuselage is too small, 1/2" diameter. The most you can really fit into the fuselage is 4 strands of 1/8, I'm trying 5 (using the 1/16 rubber), but it still has bunching problems (Tom has had exactly the same problem). So it needs more power but you can't put in more strands, I'm thinking of just using a short motor with 4 strands. If the tube was just 1/8" wider, so 5/8" diameter, then that would solve the bunching problem, and the F1G Piserchio hook would fit in the tube and also solve the winding-outside-the-plane problem.

Another problem is that I think front end pops out too easily, I had a nice climb but the glide was killed, I think, because the vibrating bunched motor knocked out the plug slightly and the prop didn't fold properly (which dragged it right down). So I'm thinking of ways to get that front end to snug in better (build up the plug part) or use a rubber band to hold it in tight. Tom also thought we might try having a rubber band to help the fold (I do that for my Wakes, but not the Coupes) so I might give that's another possibility. I should probably update my Voyager thread with some of these considerations.

Flying the P30 with rudder control is really fun, and very easy to keep in even the smallest field, and you get great flights, I have lots of 5+ minute flights with the P30 in that (1.3 acre) field.

I like having a lot of activity around the field. Yesterday, several kindergarten classes came out, and although they had several activities to do, a few of them sat in a line on the side and were just completely fascinated by the flying, which adds to the fun. It's too bad they don't have those old stick wind up planes anymore in every corner drugstore like when I was a kid!


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« Reply #1714 on: October 15, 2021, 12:35:18 PM »

Did anyone have to adjust the thrust line on the P1B1? If so, how did you do it?  There is precious little room around the nose plug to put any shims in, and that spoils the already loose fit.

I did modify the wing pylon a-la-Flyguy for a more solid mount.  Maybe I introduced some twist in the wing, cuz the thing cranks over to the right and drops the nose and the wing no matter how much left rudder and stab tilt I give it.

Maybe it's just a matter of not quite enough power, but the first one flew just fine on 2 loops of 1/8" in big lazy circles and I never touched the flying surfaces.
I am hesitant to assemble plane #3 until I figure out what I'm doing wrong with plane #2.


Since it's an all foam airplane, spitting rain won't keep me from the field this weekend.  It just needs to stop blowing!
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« Reply #1715 on: October 15, 2021, 01:41:50 PM »

I did modify the wing pylon a-la-Flyguy for a more solid mount.  Maybe I introduced some twist in the wing, cuz the thing cranks over to the right and drops the nose and the wing no matter how much left rudder and stab tilt I give it.

In the assembled state, can you see any warps?

I'd say post some pics ...

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I am hesitant to assemble plane #3 until I figure out what I'm doing wrong with plane #2.

Maybe that's a good reason to assemble #3 - for comparative purposes.

Best-
Dave
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« Reply #1716 on: October 15, 2021, 07:10:31 PM »

Since this is about the RC version of the Voyager, I think it would be better in my old thread on that, I just posted an update. Jasco - you're right, you really can't adjust the thrust line, but the climb seemed OK the last time I was out with it, I'll have to see if I can get it trimmed as is.
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Pete Fardell
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« Reply #1717 on: October 17, 2021, 05:14:17 PM »

Good fun at Buckminster today. Rained on my journey down and still chucking it down when I arrived, so no flying going on at all, but I got a few magazines in the very busy swap meet, plus a little KK FW-190 kit as new in its unopened box. Someone was selling them at £12 each.

The rain eventually stopped so I headed down to where the ever amazing John Ashmole, despite being pretty poorly today, was running some SAM35 events with a few hardy types. Mike Smith, Gareth Tilston and I each put one of our most expendable scale models into the rubber ratio contest. We couldn't really compete with the duration boys, but weren't completely disgraced either- especially Mike, who got a 50+ second flight out of his Mooney Aeronca Defender. Mike was also flying his splendid Copland GB-3 Wakefield. It has rudder control, which in today's stiff breeze wasn't always enough to stop it being blown away downwind, but did at least always keep it in the field.

One alarming thing that happened was that a large greyhound-type dog came belting into the field just where we were stood chatting, going like the clappers about two yards behind a very fast, very frightened hare. The hare dodged, doubled back, swerved and feinted and eventually ran right around the edge of the field past the fenced control line circle and towards the HQ buildings with the dog still hot on its heels. Last we saw, the hare seemed to be just slightly leaving the dog behind and 5 minutes later the dog came back without the hare, and loped back to its owner (that we never actually saw) in the next field. Must admit it would have rather ruined my day to see the hare caught.

Anyway, a couple of pics are attached (of model aeroplanes, not dogs or hares, I hasten to add).


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« Reply #1718 on: October 17, 2021, 05:42:04 PM »

Mike was also flying his splendid Copland GB-3 Wakefield. It has rudder control, which in today's stiff breeze wasn't always enough to stop it being blown away downwind, but did at least always keep it in the field.

Really nice planes, that Copeland knocked my socks off, really gorgeous, glad he kept it in the field! (and it's nice to hear about some RC rubber).

One quickie comment - the rudder is a little thin (in my view) for a plane that size, big planes can penetrate the wind very well, but you really need some rudder to have enough to turn it on windy days. I learned that lesson the hard way - I lost my first Tubestake because I had problems turning it on a windy day and it went over some buildings into neverland. First pick shows fin/rudder for #1, I even say in the video that it looks like enough! But I couldn't turn it sufficiently on a really windy day and lost it. I probably overdid it on #2, 2nd pic, but let's just say I had far fewer problems turning that monster (52") on windy days. So I'd recommend a good sized rudder for large jobs, particularly when you have to deal with windy days.
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« Reply #1719 on: October 17, 2021, 07:34:19 PM »

Thanks for the interesting report Pete. It must have been a sight to see the Copeland handling the wind! 3 cheers for the hare  Smiley

John
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« Reply #1720 on: Today at 12:45:23 PM »

High marks for the GB-3. I love my dogs, but I learned the hard way not to let them chase critters. (Skunks)
Timely info about the rudder, Flyguy.  Wind is my #2 enemy.  Trees are still #1.

I brought the Thermic Hybrid with me to work so I could attempt to fly at a nearby forest preserve at lunch.  It was my oldest plane, the wing having been carved 10 years ago or so and the airplane designed and assembled 3 summers ago.  I decided it was the one I could risk in the small open area with a few trees planted around apparently for the sole purpose of filtering gliders from the air.  Needless to say, the first decent launch put the Thermic on a direct heading to The Tree I Should Have Worried About.  Of course, it was about a foot above my highest reach with a 31' telescoping fibreglass pole, too.

I had to return to work, so I re-evaluated my life choices and left. 

After returning to the office, the sky opened up with a downpour.  No wind, just lots and lots of rain falling straight down.
I couldn't bring myself to abandon the little bird completely, so I went to check on it after work expecting it to be gone.  It was still up in the tree, but in a different spot.  Since my airplanes can't climb trees, I reasoned it must be lower, so out came the fibreglass pole again. After a lot of poking and wiggling the plane finally returned to earth with nary a new ding. Both the airplane and I were soaking wet, but we were together again and I'll never fly in that little field again!
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« Reply #1721 on: Today at 01:44:03 PM »

That's a happy tale, Jasco. Incidentally, I don't think the the dog chasing the hare was being 'allowed' to by its owner, so much as actively encouraged to hunt it down (even though hare coursing is illegal in the UK). As John says, 3 cheers for the hare. It must have used up a phenomenal amount of energy in its escape though.

Flyguy- I'll pass on the GB3 rudder advice to Mike when I see him, although he looks in here himself sometimes. From what I could see though, the rudder was just about enough to turn the model into wind, but it didn't then have the power to make any headway! We needed some fetcher mites really but there were none to be bought in the morning swap-meet.
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