Compound helicopter with engine shaft power output control

Details Compound helicopter with engine shaft power output control Compound helicopter with engine shaft power output control

1992-06-05

1992-12-29

Peters, Jr., Joseph F.

Aeronautics and astronautics

Aircraft, heavier-than-air

Helicopter or auto-rotating wing sustained, i.e., gyroplanes

244 7R, 244 1721, 244 6, 244 1719, B64C 2722

Patent

active

051745232

ABSTRACT:
A compound helicopter includes a main sustaining rotor for hover and low speed flight, a propeller for providing propulsion in high speed flight and an engine. Engine output power is controlled so as to ensure efficient use of available power in both modes of operation. A preferred form of control includes a variable area exhaust nozzle from a gas turbine engine which has the advantage also in providing an augmenting jet thrust during high speed flight.

REFERENCES:
patent: 3138349 (1964-06-01), Piasecki
patent: 3241791 (1966-03-01), Piasecki
patent: 3448946 (1969-06-01), Nagatsu
patent: 3540680 (1970-11-01), Peterson

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