Aeronautics and astronautics – Aircraft sustentation – Sustaining airfoils
Patent
1979-04-06
1982-06-15
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft sustentation
Sustaining airfoils
244213, 244200, 244130, B64C 358, B64C 2110
Patent
active
043346588
ABSTRACT:
A pair of metallic strips are provided for the improvement in the stalling aerodynamics of the Cessna Series 150 and 152 aircraft, especially during conditions which would otherwise generate an unintentional spin entry, followed by a fatal accident. The strips are secured to the leading edge of the airplane wing at a point substantially adjacent to each wing root. Each strip has a plurality of raised surfaces for modifying the airflow over the upper wing surface, and a concave surface which is placed against the leading edge of the airplane wing. Fasteners placed in recessed areas on the strip secure the strip to the wing's leading edge. The addition of these strips to the airplane wing modify the stall pattern in its area of separated airflow over the upper surface of the wing in such a way that the pilot is provided with greater aileron control during stalling conditions.
REFERENCES:
patent: 1769393 (1930-07-01), Rydberg
patent: 1831780 (1931-11-01), Sharp
patent: 2037626 (1936-04-01), Hall
patent: 2503585 (1950-04-01), Loedding
patent: 2638286 (1953-05-01), Mathisen
patent: 2800291 (1957-07-01), Stephens
patent: 3463418 (1969-08-01), Miksel
patent: 4032087 (1977-06-01), Cleaver
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