Blended Cutout Flap for the Reduction of Jet-Flap Interaction Noise

This technology is a new type of design for the wing flap, aileron, or flaperon located directly behind the engine nozzle on jet aircraft. Using a concave-down curved shape for the trailing edge instead of a conventional right angle, the cross section of the flap, aileron, or flaperon directly in the jet exhaust stream is reduced, thus reducing noise.