Fold your airplane in half along its center. Along a straight line above the security fold triangle, fold the wing. At the front and back, the wing should come down so that the trailing edge completely aligns and parallels with the rear fuselage. After both of the wings have been folded, start on the winglets. Do this by folding the winglet up parallel to the fuselage and up to the inner panel of the wing. Repeat this on the other side.