Aeronautics and astronautics – Aircraft – heavier-than-air – Airplane and fluid sustained
Patent
1991-06-06
1992-09-08
Peters, Jr., Joseph F.
Aeronautics and astronautics
Aircraft, heavier-than-air
Airplane and fluid sustained
244 124, 244 121, 244 45R, 244 45A, D12335, B64C 2900
Patent
active
051451298
ABSTRACT:
An unmanned aircraft is provided which dual turbo shaft engines diving contra-rotating propellers. A bow plane provides pitch control during normal aircraft cruising. The contra-rotating propellers generate a slipstream for wing and tail sections that permit the aircraft to execute hover without the use of complicated tiltable rotor or jet assemblies.
REFERENCES:
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patent: 3322223 (1967-05-01), Bertelsen
patent: 3358946 (1967-12-01), Shye
patent: 3884432 (1975-05-01), Blanchard
patent: 3966142 (1976-06-01), Corbett et al.
patent: 4116405 (1978-09-01), Bacchi et al.
patent: 4296896 (1981-10-01), Kress et al.
patent: 4478378 (1984-10-01), Capuani
Jane's All the World's Aircraft 1955-1956, pp. 237, 238.
Jane's All the World Aircraft 1957-1958, pp. 355, 356.
Ellis Christopher P.
Grumman Aerospace Corporation
Peters Jr. Joseph F.
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