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Prewitt Convertiblade VTOL Aircraft

hesham

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hesham

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The older same concept;

 

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hesham

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Hi,

Convertiblade

Patent number: 4059247
Abstract: An aircraft which operates between the surface and the air as a rotating wing aircraft (helicopter-autogiro). When airborne a rotor pylon latch is released and the pilot flies the rotor system aft about its pivot to the fuselage to form the tail of a high speed jet propelled airplane. Altering the pitch angle of the blades controls the aircraft, called a convertiblade, for helicopter-autogiro and airplane configurations and for moving the rotor between its configurations. The rotor is revved up with rocket fuel piped to burner jet nozzles located at the blade tips. A jump-take-off may be used to efficiently get the convertiblade airborne at a good climbing speed. Prior to landing, the rotor blades are released from their operation as roll control surfaces for the airplane configuration; then, they are permitted to rev-up and act as a brake to reduce the speed of the airplane.
Type: Grant
Filed: September 15, 1976
Date of Patent: November 22, 1977
Inventor: Richard H. Prewitt

 

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