Supercritical wing

Details Supercritical wing Supercritical wing

1980-12-08

1987-04-28

Basinger, Sherman D.

Aeronautics and astronautics

Aircraft sustentation

Sustaining airfoils

B64C 2106

Patent

active

046607889

ABSTRACT:
A supercritical wing of the variety in which the compression shock is stabilized is being improved by providing a suction device, substantially along the entire wing span, right at the chord station of the upper-wing surface where intercepting the sonic line. Specific rules concerning the suction and suction slit are given. A small chord station range may be covered by a movable slot or several parallel-running slots. The surface contour may be modified right at a slot to, thereby stabilize the compression shock further. The invention shifts buffet onset to larger off-design Mach numbers and angles of attack.

REFERENCES:
patent: 3275266 (1966-09-01), Cockerell
patent: 3951360 (1976-04-01), Anxionnaz
"Laminar Flow Control Technology", NASA Facts, (NF86/8-79), Aug. 1979, pp. 1-8.

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