Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes
Patent
1979-01-24
1981-07-21
Broome, Harold
Aeronautics and astronautics
Aircraft, heavier-than-air
Helicopter or auto-rotating wing sustained, i.e., gyroplanes
244178, B64C 1144
Patent
active
042793912
ABSTRACT:
A helicopter having an automatic flight control system including an inner, stability loop is rendered less sensitive to short-term, inadvertent pilot inputs by applying a washed-out derivative of a stick position signal to the inner stability loop in a sense to countermand the pilot action. Using a washed-out signal countermands only short-term rapid stick motions, which may be induced by the pilot actively, but inadvertently, or inactively due to coupling between the pilot or the stick and motion of the fuselage, while permitting purposeful, long-term stick positions to have the full, intended effect.
REFERENCES:
patent: 3528633 (1970-09-01), Knemeyer
patent: 3584814 (1971-06-01), Murphy
patent: 3711042 (1973-01-01), Rempfer et al.
patent: 3733039 (1973-05-01), O'Connor et al.
patent: 3752420 (1973-08-01), Osder
patent: 3920966 (1975-11-01), Knemeyer et al.
patent: 4127245 (1978-11-01), Tefft et al.
Adams Don L.
Fischer William C.
Murphy Richard D.
Broome Harold
Eisenzopf Reinhard J.
United Technologies Corporation
Williams M. P.
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