Aeronautics and astronautics – Aircraft – heavier-than-air – Airplane and helicopter sustained
Patent
1976-02-17
1976-12-07
Blix, Trygve M.
Aeronautics and astronautics
Aircraft, heavier-than-air
Airplane and helicopter sustained
244 7C, 244 1723, 416115, 416124, B64C 2722
Patent
active
039957934
ABSTRACT:
A jet aircraft is equipped with powered helicopter type rotor blades and control mechanisms whereby it can take off and land vertically, yet in horizontal flight can operate at speeds and altitudes typical of jet aircraft. The rotor blades are foldably retractable to a compact locked, trailing position for horizontal travel and are readily unfoldable by a manually operated control mechanism within the aircraft. While the rotors are rotating, the blade pitch can be selectively controlled and, on power failure, will be automatically controlled to provide for same direction autogyro rotation. In one form, the wings and stabilizers are tiltable between substantially horizontal positions for normal horizontal flight and substantially vertical positions for vertical flight. The craft is ground supported by flexible legs.
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Blix Trygve M.
Kelmachter Barry L.
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