RE: MachNone, Eyelash, Pacer etc
As I look at the plans again, I see that there are many places where the structure could have been lighter without compromising the strength required for 1/2A. Originally, I just wanted to see what I'd get if I followed the plans exactly. In fact, I sized the plans to suit the spinner available. That worked out well, even the wood sizes came out to 1/16th ribs, 3/32" fuse sides and like that.
But sheeting adds lots of weight. Stringers and formers are the way to go. With such a small wing, sheeting is not needed for adding stiffness. In fact, if I did it again, I'd use LiteSpan which is what helped make the Stik stay light. The wing on the Stik has never suffered flutter or such nonsenses, despite dives at full bore at 20K on the Brodak hybrid. I'm just guessing but I'm speculating that the engine picked up some 2K in a full on, power dive. What it would do in a pipe,,, [X(]
Geez, good thing I've got a couple of Cox, heavy duty cranks.