The wing is suposed to be bolted thru the root rib thru the vertical and into the side of the fuse into a blind nut. I hate the way the directions say to do it and am trying to find a cleaner way. To do it the way the book says you have to cut a ugly hole in the wing to fit the bolt thru to install the wing and tighten down.[:'(] I will try to get you a better discription and picture tomorrow[8D]