Semi-automatic takeoff control system for aircraft
AssigneeSperry Rand Corporation
InventorsThomas W. Kennedy, Jr., Harry D. Smith
Life of this patent
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Abstract
A semi-automatic takeoff flight control system for automatically capturing a predetermined takeoff pitch attitude at a predetermined pitch rate during the aircraft takeoff rotation maneuver. In response to the manual rotation command from the pilot, control circuitry generates a pitch rate command to the elevator, limited to the predetermined pitch rate. As the craft rotates to an intermediate pitch attitude less than the desired predetermined takeoff climb attitude, circuitry is included to provide a pitch attitude command with regard to the predetermined reference attitude, which by virtue of rate, displacement, and integral control provides asymptotic capture of the predetermined reference attitude.
Claims8
A semi-automatic take off control system for aircraft for rotating said aircraft at no greater than a maximum predetermined pitch rate to capture a predetermined climb pitch attitude in response to a manual rotation command, comprising
- first control means including limiter means responsive to said manual rotation command for rotating said aircraft at a pitch rate no greater than said maximum predetermined pitch rate,
- detector means for detecting an intermediate pitch attitude less than said predetermined climb pitch attitude,
- reference source means for providing a reference signal representative of said predetermined climb pitch attitude, and
- second control means responsive to said detector means and said reference source means for controlling said aircraft to capture said predetermined climb pitch attitude after said aircraft attains said intermediate pitch attitude.
Dependencies are inferred from the claim text.