Patent ID: 7406369

Claim:
A ground effects compensation system for generating a compensated angle of attack signal during a takeoff of an aircraft, said system comprising a flight control system, an altimeter and means for indicating the angle of attack of an aircraft and for generating a signal indicative of the aircrafts angle of attack; means including said altimeter for generating a signal indicative of the aircrafts altitude upon achieving the weight off wheels and until said aircraft reaches an altitude equal to about ½ of the wing span of the aircraft; means for generating a linear proportional ground effects compensation signal of between 1½° to 0° as the aircraft climbs from the weight off wheels to an altitude which is equal to about ½ the wing span of the aircraft; and means for combining the signal indicative of the aircraft's angle of attack and the linear proportional ground effects compensation signal to thereby provide a ground effects compensated angle of attack signal.