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Combination-aircraft-yaw-angle-of-attack-sensor

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Combination aircraft yaw/angle of attack sensor

Details

Inventors: Greene, Leonard M.;
Assignee: Safe Flight Instrument Corporation (White Plains, NY)
Primary Examiner: Crosland; Donnie L.
Assistant Examiner:
Attorney, Agent or Firm: Sokolski; Edward A.

An improved aerodynamic vane is used for sensing the angle of attack of an aircraft during yawed flight. Left and right sensors are rotatably mounted to opposite sides of the fuselage of the aircraft and rotate in the air flow to a position indicative of the angle of attack of the aircraft. Each sensor consists of an arm rotatably attached at one end to the aircraft with a vane at the other end of the arm, which vane is canted at an angle with respect to the axis of rotation of the arm. The vanes on the sensors on the opposite sides of the aircraft are both canted down or up as to cause the sensors to take similar angular positions during yawed flight.

DETAILED DESCRIPTION Instead of using a third sensor to sense the angle of yaw, the present invention utilizes an angle of attack sensor that has a vane that is canted relative to the axis of rotation of the sensor.
In yawed flight the canted vane interacts with the air flow so that the port and starboard sensors exhibit similar rotation angles for a given angle of attack.

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