Twin boom scratchbuild with Dollar Tree foam (depapered), AX2306 2000kv motor, 1300mAh 3S, 40A ESC (way overkill, but it's all i had lol). At first it failed because of instability, weakness of foam, and of course, pilot error....but when I had it tweaked out, it flew like a dream....it was my 2nd scratchbuild, after my original twin boom http://www.youtube.com/watch?v=iIK_2fsfzdQ
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I have had one of theese "flexible wing" planes myself.
I think You could cover lover surface of the wing with Scotch tape.
But right thing to do is a profiled wing.
It's easy if You make lower skin, upper skin glued together on leading and trialing edges and a vertical foam longeron to make space between skins.
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I used a KFm-2...
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The top skin bends to a curve. Bottom skin bends a bit too, but it's not that relevant.
Try two strips of paper, 4" and 5" wide, for instance. Then glue the long sides together. The longer strip will bend into arch. If You'd put a vertical strip or two inside, You'd be able to fix a curvature.
The same thing can be done with foam too.
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And there's ExAir's Armin wing, too :D
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I was trying to remember the name but...
The only difference is in Armin wing the longeron is horizontal multilayer. I've made two vertical walls.
IMHO it's the same or little better on rigidity and a little less weight. And more control on resulting airfoil.
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Genius XD
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