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Old Jan 26, 2012, 12:10 AM
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Haha, you noticed that huh? Just a little over zealous sanding on the elevator I guess.

Thanks for the tip. I'll do that. Stay with me on this thread, I'll need some expert building advice.
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Old Jan 26, 2012, 05:41 PM
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North Carolina
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Skyline, The GP .40 Cub came out in around 1993/94. It has been a very popular kit for them. The only thing about this kit that is sub-par, is the landing gear. Mine came with a single wire which is no where near strong enough. I used my wire bender to make up a proper scale set which solved the problem. The gear has got to have the rear brace to be strong enough. You can also get the really scale bungee gear made just for this model from several aftermarket vendors.
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Old Jan 26, 2012, 10:02 PM
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Aftermarket vendors sell a scale landing gear kit specifically for this 40 size cub?
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Old Jan 27, 2012, 04:59 AM
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I built one 5 years ago, i love flying it but it can be tricky in a crosswind and turns take a bit of practice although for me this adds to the planes appeal
Flybys can be incredibly slow but be careful when it does stall
Mine uses a 65 four stroke but a 4 cell setup drawing around 50 amps would be ample. I retrofitted separate aileron servos after being dissapointed with the single aileron setup, if i lost mine i would buy another identical kit straight away.
Good luck with the build
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Old Jan 27, 2012, 06:23 PM
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State College PA
Joined Jul 2002
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Originally Posted by SkylineFlyer View Post
Yeah, I'm gonna build this electric. Not sure on the motor yet. Probably just use a EFlite Power 46.

Did you build your wing with the recommended 1 servo for the ailerons? I'm thinking about just adding two servos, one in each half of the wing. I've never been a fan of the 1 servo for both aileron thing.
Skyline, I have the same kit. Power 46 and a 4C 4200 and it flies great. Floats around for 12 minutes, or WOT takeoff in 8 feet.
If I were to rebuild it, I'd do dual aileron servos.
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Old Jan 27, 2012, 06:48 PM
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Skyline, I have the same kit. Power 46 and a 4C 4200 and it flies great. Floats around for 12 minutes, or WOT takeoff in 8 feet.
If I were to rebuild it, I'd do dual aileron servos.
Tom, where did you put the battery? Did you create an access panel on the bottom and but it behind the firewall? Very interested in any more information you could possible give. Even pics would be great.
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Old Jan 27, 2012, 06:49 PM
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Originally Posted by rupert the bear View Post
I built one 5 years ago, i love flying it but it can be tricky in a crosswind and turns take a bit of practice although for me this adds to the planes appeal
Flybys can be incredibly slow but be careful when it does stall
Mine uses a 65 four stroke but a 4 cell setup drawing around 50 amps would be ample. I retrofitted separate aileron servos after being dissapointed with the single aileron setup, if i lost mine i would buy another identical kit straight away.
Good luck with the build
Thanks RTB! Got any pics of your model?
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Old Jan 27, 2012, 07:43 PM
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Here are a few pics, i covered it with fabric and painted the cowl etc with 2 pack automotive paint matched to a sample of the covering, of course being electric you won't need to use fuel proof paint
I just went into the shed and weighed it 8lb 2.3oz 3695 grams
When i built it i made no attempt to lose weight anywhere, it was the first kit i ever built, consequently the next one would come out better
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Old Jan 27, 2012, 07:50 PM
Rust: The poor man's Loctite.
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Tom, where did you put the battery? Did you create an access panel on the bottom and but it behind the firewall? Very interested in any more information you could possible give. Even pics would be great.
I flew it one season with nitro then i converted it over. Battery went where the fuel tank was. I just glued a balsa/velcro platform in the bottom of fuse, elevated about o.5" high. About 2/3 of the battery was ahead of the dashboard/ F2, the rest is in the cabin area. I just left the windows out of one side and can get the battery in and out. The motor mount is a simple plywood box with blind nuts that extends 1.25" beyond the factory firewall. You can also use long aluminum tubing standoffs I also drilled and dremeled a couple large holes in the firewall for ESC cooling.
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Old Jan 27, 2012, 07:53 PM
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Originally Posted by rupert the bear View Post
Here are a few pics, i covered it with fabric and painted the cowl etc with 2 pack automotive paint matched to a sample of the covering, of course being electric you won't need to use fuel proof paint
I just went into the shed and weighed it 8lb 2.3oz 3695 grams
When i built it i made no attempt to lose weight anywhere, it was the first kit i ever built, consequently the next one would come out better
Beautiful JOB!!!!!!! Man that looks good in the air. What tires/rims did you end up using?
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Old Jan 27, 2012, 07:57 PM
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I flew it one season with nitro then i converted it over. Battery went where the fuel tank was. I just glued a balsa/velcro platform in the bottom of fuse, elevated about o.5" high. About 2/3 of the battery was ahead of the dashboard/ F2, the rest is in the cabin area. I just left the windows out of one side and can get the battery in and out. The motor mount is a simple plywood box with blind nuts that extends 1.25" beyond the factory firewall. You can also use long aluminum tubing standoffs I also drilled and dremeled a couple large holes in the firewall for ESC cooling.

Yeah, I'll use the stand off tube method. I use it on all my planes. Lowe's has some awesome nylon spacers that are STRONG!

You must have very good dexterity. I don't see how getting that battery plugged in and positioned through one of those windows would be possible for me. I'd end up breaking balsa if I tried that.

Do you have any pics to share?
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Old Jan 27, 2012, 08:02 PM
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Beautiful JOB!!!!!!! Man that looks good in the air. What tires/rims did you end up using?
Thanks I used DU BRO Cub wheels (from tower hobbies) they look cool but are quite heavy being rubber. That would be one of the areas that you could save a bit of weight, but then again it has enough wing area to carry a bit of extra weight
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Old Jan 27, 2012, 09:48 PM
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Wing Halves Joined

I'm almost to the point of joining the wing halves. So far all my cuts look good. Could be better, but I'm happy. These photos will just show how they look test fitted together.





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Last edited by SkylineFlyer; Jan 30, 2012 at 10:58 PM.
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Old Jan 28, 2012, 11:00 AM
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Nice work!
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Old Jan 28, 2012, 11:37 AM
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United States, CA, Garden Grove
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I started a Sig 1/6 scale 72" w/s Cub in the 60's, I'll finish in near future as an electric but with an old geared Astro 25 and two 2200mah lipos in series.
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