Abstract:
A measurable increase in lift has been discovered by modifying the top surface of a NASA 4412 airfoil. This modification has been demonstrated in a straight wing of a typical plane and a similar circular wing as used in U.S. Pat. No. 5,046,685. the listed ordinates have not been optimized for any particular air speed. These results will benefit ultra-lites, gliders, helicopters or any slow flying aircraft.