Airplane angle of attack and direction of flight indicator

Details Airplane angle of attack and direction of flight indicator Airplane angle of attack and direction of flight indicator

1978-05-01

1980-10-28

Barefoot, Galen L.

Aeronautics and astronautics

Miscellaneous

73180, 116265, 250231R, 350 9624, 356383, 340 27AT, B64D 4300, B64D 4500

Patent

active

042302900

ABSTRACT:
An airplane angle of attack and direction of flight indicator includes a vane on the outside of the fuselage which is pivotally movable in response to changes in the airplane's angle of attack. A group of optical fibers are supported within the airplane with one end positioned for exposure to a light source. A light shield is movable into and out of blocking relation between the light source and optical fibers in response to pivotal movement of the vane. With the opposite ends of the optical fibers arranged in an indicator in the airplane cockpit, the illumination of fibers at the indicator affords a ready indication of the airplane's angle of attack. With the opposite ends of the fiber arranged in vertically spaced relation, a sighting device may be interposed between the pilot and indicator for establishing a line of sight along the actual direction of flight.

REFERENCES:
patent: 1332810 (1920-03-01), Danielson
patent: 3036153 (1962-05-01), Day
patent: 3272174 (1966-09-01), Pribonic
patent: 3566826 (1971-03-01), Forster
patent: 3742233 (1973-06-01), Gorgens et al.

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