Unmanned flight vehicle including counter rotating rotors positi

Details Unmanned flight vehicle including counter rotating rotors positi Unmanned flight vehicle including counter rotating rotors positi

1990-05-18

1992-10-06

Barefoot, Galen

Aeronautics and astronautics

Aircraft, heavier-than-air

Airplane and fluid sustained

244 26, 244 1711, B64C 2900, B64C 3906

Patent

active

051524783

ABSTRACT:
An unmanned flight vehicle wherein two counter-rotating rotors are positioned within a toroidal fuselage and in which rotor pitch solely is utilized to generate all required lift, pitch, roll, yaw and vibration and stress control for the vehicle.

REFERENCES:
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patent: 3409249 (1968-11-01), Bergquist et al.
patent: 3477168 (1969-11-01), Trodglen
patent: 4163535 (1979-08-01), Austin
patent: 4196877 (1980-04-01), Mutrux
patent: 4796836 (1989-01-01), Buchelt
patent: 5035377 (1991-07-01), Buchelt

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