RE: Sig Wonder Designed by Bruce Tharpe - 2nd Build
Ordered all the stuff for my Wonder today- 15CVA, engine mount, props, tank, Rx, etc.
Here's a shot of how I redid the wing hold down area. I filled in between the TE of the ribs with balsa stock, so the whole TE is solid in the center. When I drill the holes for the wing bolts, I use a 5/8 Forstner bit, which gives a real clean hole. I slice off pieces of 5/8" OD hardwood dowel, and epoxy them into the holes, then drill the "real" wing bolt holes through the dowel. That way, no unsightly 1/16 plywood plate on the top of the wing, and a much sturdier hold down system for very little increase in weight.
I figure to have this critter finished and flying about two weeks from today.