Aeronautics and astronautics – Aircraft structure – Details
Patent
1979-03-12
1980-09-30
Kelmachter, Barry L.
Aeronautics and astronautics
Aircraft structure
Details
102 56R, 102 921, 244119, B64C 100, B64C 2100
Patent
active
042251028
ABSTRACT:
Apparatus for alleviating high angle-of-attack side force on slender pointed cylindrical forebodies such as fighter aircraft, missiles and the like and employing a symmetrical pair of helical separation trips to disrupt the leeside vortices normally attained. The symmetrical pair of trips start at either a common point or at spaced points on the upper surface of the forebody and extend along separate helical paths along the circumference of the forebody.
REFERENCES:
patent: 871825 (1907-11-01), Schupmann
patent: 1596180 (1926-08-01), Henderson
patent: 2980370 (1961-04-01), Takacs
patent: 3877665 (1975-04-01), Riccius
Frosch Robert A. Administrator of the National Aeronautics and Space
Rao Dhanvada M.
Kelmachter Barry L.
Manning John R.
Nelson Wallace J.
Osborn Howard J.
The United States of America as represented by the Administrator
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