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Author Topic: Let's talk E20  (Read 64554 times)
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FF Bruce
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« Reply #25 on: May 27, 2013, 06:28:09 PM »

Dave is right,I just put a peice of 1\64 ply on the right side like you would do on a rubber model.We have had two days of rain no test flights here.Looking forward to trying the 20 sec. resistor in the timer.Was getting about 40' on 7sec. of power.Luke wrote that he gets over 150' on 17 sec. runs.Now that would be cool.     Bruce 
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Dave Andreski
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« Reply #26 on: May 27, 2013, 06:58:00 PM »

Bruce,
Thanks for sending the pics to Bill for posting.
Bill, thanks for posting them.
Are any of Luke's Models shown in the previous posts?

Dave
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pampasam
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« Reply #27 on: May 27, 2013, 11:23:40 PM »

 Some pictures coming up soon.

Luke
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Luke
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« Reply #28 on: May 28, 2013, 12:49:21 AM »

 Here are some older pictures ( credit to Gary ) at the notorious Grassy Knolls of some of the gang.
Pic 1 is Gary and Country Boy.
Pic 2 is Gary launching Country Boy.
Pic 3 is Gary's Viking.
Pic 4 is Kenny and friend.
Pic 5 is L to R,  Paul, Luke, Zack and Mark.
Pic 6 is my profile Zipper.

Luke
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Luke
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« Reply #29 on: May 28, 2013, 08:27:29 AM »

Bruce & Dave,
Duh, you're right I totally missed the bit about shimming somehow. Some nice models showing up here.

bill
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Dave Andreski
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« Reply #30 on: May 28, 2013, 11:52:12 AM »

Some pictures coming up soon.

Luke

Luke,
Thanks for posting the pics in reply #29. Very inspirational and all clean, well thought out aircraft.
Dave
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FF Bruce
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« Reply #31 on: June 01, 2013, 03:39:00 PM »

I'm am so jazzed got in 6 great flights with the E-20 today.Took Luke's advice and tried the snap-on 2.5" prop. The model went twice as fast,climbed at a 70 deg. angle for the whole run got well over 150' with the 20 sec. resistor.It looked more like an E-36 going up.Had just to much fun,if that is even possible.
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scrubs
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« Reply #32 on: June 01, 2013, 03:54:46 PM »

That's great Bruce. Somebody over on RCGroups started a thread on running the 8.5 MM PZ motors DD. Someone else chimed in that they'll measure some thrust figures this weekend and that it's the best prop for the P-51 motor. I'd like to see those.

Building a fuselage for some flying surfaces I have around & should be flying one shortly.

bill
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« Reply #33 on: June 01, 2013, 04:14:17 PM »

Bill
That is what I also did, see orange plane in reply #16, wing and tail from two different Stardusters.

Bruce
Quite a difference over the GWS prop for sure.

Luke
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Luke
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« Reply #34 on: June 01, 2013, 06:34:20 PM »

Which GWS props are you using? I thought there was a 2.5 x .8 a 2.5  x 1 and a 2.5 x 2.

bill
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FF Bruce
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« Reply #35 on: June 01, 2013, 06:44:32 PM »

I was using the 2.5x1 GWS but not anymore.Luke there are 9 guy's that have E-20's ready or almost ready for the small models meet next weekend.I'm going to take pic's of each one and send them to you.By the way they all are using your timer.Thanks again for all your help.  Bruce
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Dave Andreski
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« Reply #36 on: June 02, 2013, 10:08:30 AM »

I'm am so jazzed got in 6 great flights with the E-20 today.Took Luke's advice and tried the snap-on 2.5" prop. The model went twice as fast,climbed at a 70 deg. angle for the whole run got well over 150' with the 20 sec. resistor.It looked more like an E-36 going up.Had just to much fun,if that is even possible.

Hi Bruce,
Like Bill said, that's sounds great.
Luke, is this the preferred prop?-
http://www.guillow.com/propellers.aspx

Thanks,
Dave
« Last Edit: June 02, 2013, 10:59:02 AM by Dave Andreski » Logged

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frash
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« Reply #37 on: June 02, 2013, 03:23:39 PM »

While I have not yet built an E-20, I believe that you guys have the correct prop. I think that the Plantraco Triturbo prop and the ItCanFly.com or Snap&Fly are essentially the same. Two of us mentioned this at http://www.hippocketaeronautics.com/hpa_forum/index.php?topic=11797.msg81260#msg81260.

My last order of Plantraco TriTurbo props from BSD Micro RC were labeled Snap&Fly and appear identical. This Plantraco design in my hands was better in flight and bench tests than other similar sized props.

Fred Rash
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Dave Andreski
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« Reply #38 on: June 02, 2013, 07:20:08 PM »

Hi Fred,
Yes, I remember that thread and I'm glad to see the props are still available. I'll check to see who has the best deal on shipping charges before ordering any.
Dave
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Dave Andreski
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« Reply #39 on: June 03, 2013, 01:06:57 PM »

Just ordered some 'Snap & Fly' props from Guillows along with some other stuff.
Dave
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scrubs
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« Reply #40 on: June 04, 2013, 06:00:17 PM »

Someone on RC Groups posted another source of the props:

http://www.radicalrc.com/search/prop/match_criteria/all/searchCat/34/rec/96

Look about 1/2 way down the page. Available in colors also. At $1.75 with $3 shipping it's another viable source. Looks like a dead ringer for my Plantraco Tri-turbo and Snap&Fly.

bill
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FF Bruce
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« Reply #41 on: June 04, 2013, 08:55:43 PM »

Bill, they do look the same and I like all the colors.The price is about the same.I just ordered 10 from Guillows and they came to $20.40 with shipping Thanks for the info.       Bruce
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scrubs
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« Reply #42 on: June 04, 2013, 10:33:19 PM »

Attached the motor to my new fuselage and did a little glide testing with lipo but sans timer. Not too bad. Tried running the motor and snap&fly prop. Definitely more thrust than I've gotten with the other combos I tried. Need to solder up the timer wires and set things up ... should be flying it in a few days.

bill
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Dave Andreski
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« Reply #43 on: June 06, 2013, 12:35:22 PM »

Someone on RC Groups posted another source of the props:

http://www.radicalrc.com/search/prop/match_criteria/all/searchCat/34/rec/96

Look about 1/2 way down the page. Available in colors also. At $1.75 with $3 shipping it's another viable source. Looks like a dead ringer for my Plantraco Tri-turbo and Snap&Fly.

bill
Nice find Bill!
Too late for me though.
Funny, I've ordered from Radical RC before so knew about the $3 shipping but wasn't interested in these small props at the time.
As a side note-less than 24 hours after placing my small order for Parfiz CA glue, I received an envelope that was 'overnighted' to me containing a packet of SIG Koverall material 48" X 72". Price on the packet is $8.75. It was FREE/GRATIS and was/is no use to me. I'd never even looked at this stuff on their website so I guess this was an inventory reduction/clear the shelves sorta thing.
In fact, it doesn't even show up on their site.
Weird.
Dave
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scrubs
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« Reply #44 on: June 09, 2013, 02:05:24 PM »

Nothing fancy here just threw this together to test the motor & timer combo. Fourth incarnation of the wing & stab.

bill
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FF Bruce
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« Reply #45 on: June 09, 2013, 07:53:52 PM »

Very nice Bill,how much does it weigh?We had our small models meet this weekend.Had 7 enter E-20.I took pic's of each one and a group shot maybe you could help me out and post them for me.No one maxed out but one guy came up short by one sec.They all fly well and 30 gr. is the aversge weight.The air was very hard to pick.I put  my frist two flights up a mile then the next in a big old hole for 59 sec.We used the 20 sec. resistor and fly a 90 sec. max. I bet there will be more of them next year.   Bruce
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« Reply #46 on: June 09, 2013, 09:32:19 PM »

Bruce,
27 gms as you see it less lipo. Send me the pics are I'll post em. Maybe next year you can add a postal so Dave Andrewski & I can get in on the fun. Or maybe I can time my semi-annual Portland visits. I'll be in Sherwood and then flying home during your Aug contest.

bill
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Dave Andreski
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« Reply #47 on: June 10, 2013, 06:56:10 PM »

Nothing fancy here just threw this together to test the motor & timer combo. Fourth incarnation of the wing & stab.

bill
Bill,
Nice progress. I hope you get to fly soon.
I need to get busy.
Dave
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« Reply #48 on: June 11, 2013, 09:49:28 AM »

Any online sources for plans?

Just getting into outdoor freeflight with a Super Pearl 202E (when/if our UK weather EVER clears up) after cutting teeth on indoor duration - rubber and scale  - electric.

I have lots of these coreless motors laying about and a time for two.

Thanks
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« Reply #49 on: June 11, 2013, 12:04:34 PM »

Reply #4 on the first page has a link to a newsletter with a plan for the EAP 20. If you brouse more of the newsletters on that site there's some E36's to downsize. Ian Middlemiss on the Peterborough site posted dimensions for one he did. A lot of "back in the day" nos gassies should be suitable. My mini Starduster flew nicely, downsized from a .010 plan. Check Outerzone. Nose length will probably have to be extended on most gas designs.

bill
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