Aeronautics and astronautics – Aircraft – heavier-than-air – Paddle wheel sustained
Patent
1992-09-16
1993-11-30
Barefoot, Galen
Aeronautics and astronautics
Aircraft, heavier-than-air
Paddle wheel sustained
244 70, 244 9, B64C 2900
Patent
active
052658279
ABSTRACT:
An aircraft having vertical takeoff and landing capability having at least first and second laterally extending paddle wheels rotatable on a central axis generally perpendicular to the longitudinal axis of the aircraft and between its nose and tail. Each of the paddle wheels has a plurality of blades pivoted by a system of linear actuators to a determined optimum blade pitch angle. One paddle wheel is positioned adjacent the port side of the aircraft and the other paddle wheel is positioned adjacent the starboard side. The pilot is able to operate the aircraft in all regimes of flight by differentially adjusting the pivot angle of each of the blades. In one embodiment utilizing only a pair of paddle wheels, differential operation of the blades provides lift, thrust, roll, and yaw control of the aircraft, while an aircraft pitch control rotor rotatable about a vertical axis distant from the paddle wheels is provided for controlling pitch of the aircraft. In another embodiment of the invention, the aircraft is provided with both forward and aft pairs of paddle wheels such that differential operation of the blades of the forward and aft paddle wheels provides pitch control of the aircraft without need of a separate pitch control rotor, while also providing lift, thrust, roll, and yaw control.
REFERENCES:
patent: 1754977 (1930-04-01), Bergman
patent: 2123916 (1938-07-01), Rohrbach
patent: 2413460 (1946-12-01), Main
patent: 2507657 (1950-05-01), Wiessler
patent: 2580428 (1952-01-01), Heuver
patent: 4194707 (1980-03-01), Sharpe
patent: 4210299 (1980-07-01), Chabonat
patent: 4482110 (1984-11-01), Crimmins, Jr.
patent: 5100080 (1992-03-01), Servanty
Anderson Terry J.
Barefoot Galen
Block Robert B.
Hoch Jr. Karl J.
Northrop Corporation
LandOfFree
Paddle wheel rotorcraft does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Paddle wheel rotorcraft, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Paddle wheel rotorcraft will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2090356