Think the Legal eagle is 3/8", but they also don't have 30/45mm wide plywood flanges covering each one.Ya, those ribs look plenty strong but heavy, easy to build compared to stick ribs though. What about doing a J2 wing with LE ribs in XPS foam and plywood D-section to the spar. Rear ribs in XPS foam with ply capstrips. Root rib and ribs on each side of the aileron bay with ply skin on one side for stifness and fabric cover?
You know I hate wood and prefer to order jugs of resin and rolls of fabric from china right? I think some simple vacuum bagged fiberglass or CF would be my preference. (That pics stolen from belite)
Kind of why I'm wondering about getting someone to help with the loads / design verification... Of course I realize my error here in that there's about 0 data on the J-2 to derive that from, I couldn't even get through the basics of the roncz spreadsheets - so I guess that figuring out some basic numbers is probably the next step.
Looks pretty right? Except they don't fit. I've got to take a look, Somehow I'm just under 3mm shorter than the spar. but they were derived off the spar. Gotta admit my head hurts