Brief Description: Nailed Ribs to Spars and Drilled Rib LEs
Got the wing ribs nailed to the spars using 3/4" AC nails.
I also drilled the rib leading edges in order to bolt the leading edge to the ribs. I am using stainless 8-32 x 1 5/8" fillister head bolts and stainless washers and nuts. The bolt heads are recessed ~1/4" in order to allow 3/8" dowel to plug the holes.