Aeronautics and astronautics – Landing gear – Water landing
Patent
1985-08-26
1987-08-11
Peters, Jr., Joseph F.
Aeronautics and astronautics
Landing gear
Water landing
244101, 114272, 114282, 114283, 114292, B64C 2554, B64C 3500
Patent
active
046856412
ABSTRACT:
A transient air and surface contact vehicle for transporting a person has a fuselage structure for carrying a person. A vehicle support extends from the structure and abuts a surface and thereby supports the vehicle at a predetermined distance above the surface. A buoyancy control device mounted on the structure and on the vehicle support provides for the buoyancy required to keep the vehicle afloat while stationary and at low speeds. At high speed the dynamic pressures generated at the bottom of the struts provide the supporting forces. A power source is mounted on the structure for moving the vehicle along the surface at the predetermined distance above the surface. A position control mounted on the structure produces a positive pitching moment to cause the vehicle to become airborne, a negative pitching moment to maintain the vehicle in surface-following contact with the surface and both moments to control the altitude of the vehicle when it is airborne. It is the pre-determined negative pitching moment that enables stable "open loop" pitch performance in the presence of high speeds and irregular surfaces.
REFERENCES:
patent: D259554 (1981-06-01), Parise et al.
patent: 1032868 (1912-07-01), Thompson
patent: 2368630 (1945-02-01), Bizjak
patent: 2429992 (1947-11-01), Crispell
patent: 2634067 (1953-04-01), McCoy et al.
patent: 2646235 (1953-07-01), Dawson, Sr.
patent: 4080922 (1978-03-01), Brubaker
Kirsch Jerome
Kopsco M. Alan
Markow Edward
Sturm Michael
Corl Rodney
Geib Richard G.
Grumman Aerospace Corporation
Hoffman Bernard S.
Peters Jr. Joseph F.
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