Aerofoil

Details Aerofoil Aerofoil

1997-01-06

1999-11-30

Grant, William

Aeronautics and astronautics

Aircraft, heavier-than-air

Helicopter or auto-rotating wing sustained, i.e., gyroplanes

244199, 416228, B64C 314

Patent

active

059927933

ABSTRACT:
An aerofoil comprises a leading edge and a trailing edge which define a mean chord length, and the aerofoil having an inner or root end adapted for attachment to an aircraft, and an outer end which includes a tip which is adapted in use to divide the airflow into two generally equal vortices one being an inner vortex and the other being an outer vortex the inner vortex being arranged to trail from an outer edge of a forward region of the tip and pass over a rear region of the tip.

REFERENCES:
patent: 2014242 (1935-09-01), Weichwald
patent: 2802630 (1957-08-01), Birchill et al.
patent: 3712564 (1973-01-01), Rethorst
patent: 4046336 (1977-09-01), Tangler
patent: 4190219 (1980-02-01), Hackett
patent: 4722499 (1988-02-01), Klug
patent: 5199851 (1993-04-01), Perry et al.
patent: 5205715 (1993-04-01), Perry et al.
patent: 5246344 (1993-09-01), Perry

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