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Old 05-17-2009 | 01:33 PM
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planebuilder66
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From: Middletown, CT
Default RE: CAP or Extra?

O.K., so here's the pic's, basically the center sheeting going down and the cap strips, trailing edges are then epoxied in place, make sure you double check from side to side to find exact center, don't rely on the center of the sheeting on the trailing edge, being off 1/16" isn't too bad but I staggered the top and bottom trailing edge sheeting, to not have a main center joint. Doesn't really make sense to me why I do it, but I was taught if possible, offset each side so the top and bottom joints aren't in line. It supposidly makes the wing center joint stronger. Anywho, I drilled the alerion hinge holes evenly down the TE and on the alerion to match, mounted it up, pressed it tight and sanded bolth to bee seamless. Next, remove the alerion and round the LE and fit it up to the wing, I have to releive it some more, just enough to account for the covering, maybe a 32nd of an inch. But that way, when I go to glue the alerions on, the inner section will be flush with the alerions themselves. The only thing left to do is cap the end ribs and alerion with 3/32 or 1/8 balsa, I'm capping the alerions inboard and out because it adds to the durability of the edges on them. In the last pic, you'll see the kevlar thread running straight up the last rib and connecting the two spars, this runs all the way across the lower sparand up the other side. Well, back to work.
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