Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes
Reexamination Certificate
2007-10-02
2007-10-02
Collins, Timothy D. (Department: 3643)
Aeronautics and astronautics
Aircraft, heavier-than-air
Helicopter or auto-rotating wing sustained, i.e., gyroplanes
C244S017130
Reexamination Certificate
active
11062537
ABSTRACT:
A compound Vertical TakeOff and Landing (VTOL) aircraft. In a specific embodiment, the VTOL aircraft includes a gas-powered tip-jet driven rotary-wing and a fixed-wing that is capable of providing necessary lift to the aircraft during certain forward-flight regimes so that lift from the rotary-wing is not required. This enables slowing of the rotor, thereby reducing drag during forward flight and enabling flight above and below mu-1. Valves and accompanying ducting are employed to control compressed gas flow to the rotary-wing. Various reaction jets are employed for attitude control during VTOL and transition operations. The aircraft further includes a jet exhaust nozzle to provide forward thrust to facilitate forward flight.
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