Patent ID: 6306004
Filing Date: 2001-10-23
Classification: A63H,B26F

Abstract:
A model airplane comprising:a wing with a swept back leading edge and an airfoil comprising a generally convex upper surface, said wing being symmetrical with respect to a centerline extending rearwardly from a nose;symmetrical upturned winglets formed at either end of the wing including an upper reflex area having concavity in a horizontal plane and in a vertical plane at a right angle to the wing centerline;a leading portion of each winglet extending rearwardly from the leading edge of the wing with upper, inner and lower, outer surfaces parallel to the wing centerline, the upper, inner surfaces having concavity in said vertical plane; anda trailing winglet portion curving inwardly and rearwardly from the leading winglet portion toward said centerline to define said reflex area.