Propulsion system for an airship or hybrid aircraft

Details Propulsion system for an airship or hybrid aircraft Propulsion system for an airship or hybrid aircraft

2011-01-18

2011-01-18

Ellis, Christopher P (Department: 3644)

Aeronautics and astronautics

Aircraft control

Airship control

C244S066000, C244S056000, C244S030000

Reexamination Certificate

active

07871035

ABSTRACT:
A propulsion system for an airship or hybrid aircraft includes a propeller and a pivot mechanism connected to the propeller. The pivot mechanism enables the propeller to pivot around a first pivot axis between a maneuver thruster position and an emergency ballonet fill position. Under normal conditions, when the propulsion system is disposed in the maneuver thruster position, the pivot mechanism also enables the propeller to pivot around a second pivot axis to control the attitude and thrust of the vehicle. However, in an emergency descent situation, the propeller may be rotated to the emergency ballonet fill position.

REFERENCES:
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patent: 5383627 (1995-01-01), Bundo
patent: 5538203 (1996-07-01), Mellady
patent: 2008/0011899 (2008-01-01), Amit

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