Rotor and aircraft passively stable in hover

Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes

Reexamination Certificate

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Reexamination Certificate

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10824492

ABSTRACT:
The present invention discloses a rotor that enables an aircraft to be passively stable in hover. The rotor, having a generally fixed geometry is tiltably connected to its rotor shaft. The outer part of the rotor blades have a pitch fixed relative to the rotational plane, whereas the inner part of the rotor blades have a pitch fixed relative to a reference plane perpendicular to the rotor shaft.

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patent: 2003/0111575 (2003-06-01), Rehkemper
patent: 2003/0132341 (2003-07-01), Glomstad
patent: 552 088998 (1977-07-01), None

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