312 the design of a dihedral wing should include a Center section; to which the wing halves are attached. doing so creates a 'level' place to mount the wing.! 456 the half-main spars could have been made using a half-lap joints. 633 design of the main wing should also include a dihedral Brace, 'as part of' the center section; to which each of the half-main spars are attached. this brace(ing) is very important. it helps to keep a main wing from folding in half.! a main spar Should be located at THIRTY percent of chord. thirty percent is a multiplication by point-three. the mass of servos installed in a wing should be located just-forward-of the main spar and as far inboard as is practical.
