Variable speed gearbox with an independently variable speed...

Details Variable speed gearbox with an independently variable speed... Variable speed gearbox with an independently variable speed...

2005-12-02

2008-10-14

Mansen, Michael R. (Department: 3644)

Aeronautics and astronautics

Aircraft, heavier-than-air

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

C244S017230, C244S02300R, C244S017190, C244S060000, C476S040000, C476S042000

Reexamination Certificate

active

07434764

ABSTRACT:
A gearbox of a rotary-wing aircraft includes at least one variable speed system which optimizes the main rotor speed for different flight regimes such as a hover flight profile and a high speed cruise flight profile for any rotary wing aircraft while maintaining an independently variable tail rotor speed.

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