RE: installing top hinge
An even better idea I think, is use Monokote hinges on the wings and stab. I've done it on my CA Eclipse, as well as the NB engineering Mantis I'm flying now. Made the finals in Masters the last 2 years with them. Great method. Light, seals the gap, and anyone who has tried to tear Monokote will tell you, VERY strong. Bevel the wing, leave the Aileron straight (makes it easier to get the horn over the hinge line, you can leave the wing straight and bevel the aileron, but much harder to reach the center of the hinge line). I put one 2 inch strip all the way down the aileron, flip it up, put a hinge on the bottom as well. Then just cover the wing normally after that, covering over the other hinge. Makes your schemes look better, as well as doubles the strength of the hinge. Here is a picture of the plane, I can get closer pictures to show you the method of doing it. Hinges have held up great for several years. Also, easy to repair or replace if you ever needed to.
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