I am still a little concerned about that too. The wing has ribs @ every 3 " It also has 3 spars that run the full length of the wing. 2 of which are on the top half of the rib and one that is on the bottom half these 3 spars are spread across the width of the wing. The wings leading edge is wrapped with 1/32 basswood and I have a 1/16 vertical strip that caps off the back of the wing.
I will be adding 2 carbon shafts thru the fuse and into the wing to give it some extra support
Thanks for your concern, let me know if that helps.