HIYA. I think I've got a handle on how the bending / shear loads work out in a two piece wing with sailplane style pinned overlapping spars. But there's a good chance I'm wrong so if I am could someone let me know and try and point me in the right direction please! Structure overview. Cantilever wing, overlapping spars with two connecting pins, lift loads transferred into the fuselage via two 'lift pins' in each root rib. Sailplane style. Shear. Shear rises from the tip to the fuselage attach where it's reacted into the fuselage. There is no lift related shear between the lift pins. Bending moment B.M rises till the root, continues level till the first main pin then decreases to zero at the second main pin. For the other wing half it's just a mirror image. Is that about right or am I missing something?