Wingless aircraft with ducted variable pitch airfoils

Details Wingless aircraft with ducted variable pitch airfoils Wingless aircraft with ducted variable pitch airfoils

1982-10-28

1985-02-12

Blix, Trygve M.

Aeronautics and astronautics

Aircraft, heavier-than-air

Airplane and fluid sustained

244 4R, 244 90R, 244 13, B64C 310

Patent

active

044986459

ABSTRACT:
A wingless aircraft having a power channel with two parallel ducts afixed to the top of the fuselage. A jet engine or other drive mechanism is positioned within each duct. No air flow is permitted between any part of the lower surface of the power channel and the fuselage. Each duct contains a number of variable-pitch airfoils that are independently adjustable. This independence of adjustment between variable-pitch airfoils within a single duct and the ability to adjust the variable-pitch airfoils in one duct as a group independently of those in another duct provides horizontal stability and compensates for undesired yawing. The lift is controlled to somewhat by adjustment of the variable-pitch airfoils and the angle of attack, and to an even greater extent in cooperation with adjustable auxiliary wing panels mounted above openings in the upper surface of each duct above one of the variable-pitch airfoils. The auxiliary wing panels nest in openings above the airfoils when not in use. When needed, they are raised and offset laterally to provide increased lift and control of the aircraft.

REFERENCES:
patent: 1666132 (1928-04-01), Gallet et al.
patent: 1693159 (1928-11-01), Rickelmann
patent: 3451645 (1969-06-01), Wolcott
patent: 3586266 (1971-06-01), Bucher
patent: 3610557 (1971-10-01), Fellers
patent: 3847368 (1974-11-01), Sakal, Jr.
patent: 4071207 (1978-01-01), Piasecki et al.

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