Time to build the ailerons. Aileron deminsions are 33 1/4" long X 2 1/2 inches wide of doubled over coroplast. Cut 2 strips of coro, flutes going the long way, 33 1/4 X 6 1/2. Here's where it gets tricky. You have to cut 1 1/2 off one side of the flutes, and shave them down slightly., then remove 2 flutes in the center so it will fold and bend properly. Woodpecker the mating coro surface, and the hinge. Mist, and apply poly glue. Fold over the two halves, and clamp into place. You can opt for CA glue here, but it will flex more than poly glue.