Starting the wing assembly with the center section. I plan on making this at least a 2 piece if not a 3 piece wing assembly. After looking at a number of Sig 1/4 scale build threads I noticed that the clipped wing and full wing kits have a unique center section. The clipped wing is set up to be a one piece wing so it uses a ply rear dihedral brace instead of a rectangular "tongue" in the center section for alignment of the wing sections. I will use a 3/8" hardwood dowel in the rear of the center section for alignment and then some 1/4x20 plastic wing bolts to secure the wing sections to the center section. I have added a ply doubler to each of the ribs at the joint between the center section and right and left wings. This should be stiff enough to hold the wing together.
Still have to drill the holes for the attachment bolts and alignment dowel