Airfoil shape for aircraft

Details Airfoil shape for aircraft Airfoil shape for aircraft

1981-08-14

1983-11-08

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft sustentation

Sustaining airfoils

B64C 326

Patent

active

044137966

ABSTRACT:
The invention relates to an airfoil shape for flight at high subsonic speeds, of the type comprising a flat convex upper surface, a thick leading edge and a lower surface convex towards the leading edge and concave towards the trailing, in which airfoil the upper surface comprises a maximum curvature in the vicinity of its rear part, in a zone delimited by points located at distances from the leading edge equal to 65 and 90% of the chord of the airfoil. The invention is applicable to the production of fixed or rotary wings for aircraft, having a high divergence Mach number and a low drag.

REFERENCES:
patent: 3952971 (1976-04-01), Whitcomb
patent: 4072282 (1978-02-01), Fulker et al.
patent: 4121787 (1978-10-01), Wilby
Haines, "Computer-Aided Design Aerodynamics", Aeronautical Journal, Mar. 1979, pp. 81-91.

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