Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes
Patent
1984-05-23
1987-02-24
Blix, Trygve M.
Aeronautics and astronautics
Aircraft, heavier-than-air
Helicopter or auto-rotating wing sustained, i.e., gyroplanes
244 76R, 244180, 244182, 364432, 364433, B64C 1322
Patent
active
046451412
ABSTRACT:
There is disclosed a system and technique which enables an aircraft (helicopter or VTOL) to be more easily controlled for maintaining precise position or velocity in a hover condition. The system includes operational logic and decision making circuitry which reduces pilot workload by sensing pilot intent based upon the control stick movement and mode selection of the aircraft. The system will automatically hold a given hover position, automatically hold a given hover velocity (ground speed), or allow the aircraft to be manually maneuvered to a new desired hover position or velocity. The system also enables the aircraft to either hold a new velocity or return to a previous velocity. This is all controlled through the automatic flight control system and by sensing the force or displacement of a pilot's control stick in the aircraft. Upon release of the manual force applied by the pilot to the control stick, the stick returns to a neutral position and the control logic recognizes pilot intent to maintain a given hover velocity or position.
REFERENCES:
patent: 3482805 (1969-12-01), Knemeyer
patent: 3510092 (1970-05-01), Hendrick, et al.
Blix Trygve M.
Corl Rodney
Hamann H. Fredrick
Mayes Robert C.
Montanye George A.
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