Arc wing aircraft

Details Arc wing aircraft Arc wing aircraft

1980-05-05

1983-11-15

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft, heavier-than-air

Airplane sustained

244218, 244 45R, 244 87, 244123, 244DIG1, B64C 354, B64C 900

Patent

active

044151314

ABSTRACT:
A lightweight, man carrying aircraft including a skeletal fuselage assembly in combination with a primary arc-shaped lifting airfoil having variable camber, incidence angle, and pitching moment and a secondary stabilizing airfoil of a tubular, ring-like configuration. The arc-shaped primary airfoil is superior to traditional low speed airfoil forms due to its high aerodynamic efficiency, inherent design simplicity and strength. The ring-tail assembly, offering marginal aerodynamic lift, contributes significantly to the in-flight stability and safety of the aircraft. Both airfoil members are independently controllable and constructed of a fabric or like skin material which is fitted over a wing assembly and tensioned into an operable airfoil form by the aerodynamic forces of the air during flight. Typically, the wing assemblies are supported and maintained by a lightweight, tubular fuselage structure to which is affixed the propulsion system, control mechanisms and ground support assemblies.

REFERENCES:
patent: 1010842 (1911-12-01), Baldwin
patent: 1022903 (1912-04-01), Warrick
patent: 1060273 (1913-04-01), Meloff
patent: 1085263 (1914-01-01), Jenkins
patent: 1215226 (1917-02-01), Wanee
patent: 1653903 (1927-12-01), Hall
patent: 2074765 (1937-03-01), Adams
patent: 3930624 (1976-01-01), Thompson
patent: 4116407 (1978-09-01), Murray

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