Rotary/fixed wing aircraft

Details Rotary/fixed wing aircraft Rotary/fixed wing aircraft

2005-01-25

2005-01-25

Carone, Michael J. (Department: 3641)

Aeronautics and astronautics

Aircraft, heavier-than-air

Airplane and cylindrical rotor sustained

C244S00700B, C244S00700B

Reexamination Certificate

active

06845941

ABSTRACT:
A rotor system that allows an aircraft to operate as a helicopter and as an airplane is disclosed. The invention incorporates an annular airfoil attached at the tips of the rotor blades. The rotor system stops and is secured from rotation for operation at high forward speeds. The annulus acts as the primary lifting surface in airplane mode at high speed. The rotor blades incorporate leading and trailing edge flaps for control in transitional and fixed wing flight modes.

REFERENCES:
patent: 2743885 (1956-05-01), Peterson
patent: 2886260 (1959-05-01), Peterson
patent: 3108764 (1963-10-01), Sudrow
patent: 3129905 (1964-04-01), Taylor
patent: 4307856 (1981-12-01), Walker
patent: 5190242 (1993-03-01), Nichols
patent: 5503351 (1996-04-01), Vass
patent: 5746390 (1998-05-01), Chiappetta
patent: 6086016 (2000-07-01), Meek
patent: 6450446 (2002-09-01), Holben

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