Vertical takeoff and landing aircraft

Details Vertical takeoff and landing aircraft Vertical takeoff and landing aircraft

1996-05-22

1998-11-24

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft, heavier-than-air

Airplane and helicopter sustained

244 124, 244 56, 244 66, 244 1723, B64C 2900

Patent

active

058396918

ABSTRACT:
A vertical takeoff and landing aircraft has a fuselage with a wing located above the fuselage at the rearward end and with a horizontal stabilizer located at the forward end. The propellers are mounted on booms separate from the wings and located just behind the center of gravity of the aircraft. The propellers are pivotable between horizontal and vertical axes and brakes are provided to allow locking of propeller position. When the brakes are released, the propellers automatically pivot between vertical and horizontal orientations and vice-versa based upon control of the aircraft by the pilot.

REFERENCES:
patent: 3037721 (1962-06-01), Stefanutti
patent: 3106369 (1963-10-01), Borst
patent: 3141633 (1964-07-01), MacKay
patent: 3181810 (1965-05-01), Olson
patent: 3284027 (1966-11-01), Mesniere
patent: 3528630 (1970-09-01), Ferris et al.
patent: 4116405 (1978-09-01), Bacchi et al.
patent: 4142697 (1979-03-01), Fradenburg
patent: 5046684 (1991-09-01), Wolkovitch
patent: 5419514 (1995-05-01), Ducan

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