Forming Rib Forms

Well I spent two hours today making the rib forms for the Teenie Two's wing ribs. The forms are made out of 3/4 inch plywood. The purpose of the forms is to serve as a guide in bending the metal tabs on each rib over. The metal tabs will then serve as a surface area for the wing skins to be attached to using pull rivets.

Forms also need to be made for the fuselage bulkheads and I have yet to do that. I've modified the width of my airplane so I will be cutting some test forms to see if everything will line up correctly. By everything I mean the skin sheets and the other bulkheads. When I am satisfied that everything is aligning properly, I'll go ahead and make 3/4 inch bulkhead forms.

I can't wait to actually start cutting metal, but with a little care I can "measure twice, cut once." Plywood is substantially cheaper than aluminum sheet.