Aeronautics and astronautics – Aircraft – heavier-than-air – Airplane sustained
Patent
1982-06-11
1985-10-22
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft, heavier-than-air
Airplane sustained
244 54, 244104R, 244123, 248557, B64C 326, B64C 2558, B64D 2700
Patent
active
045483710
ABSTRACT:
Improved ultralight aircraft constructed with a tubular keel extending over the length of the aircraft from forward of its wing to the tail thereof. The aircraft includes a cantilever engine mount which is carried on a pair of mounting plates extending longitudinally from the forward end of the tubular keel. The propeller shaft, driven by the engine through a speed reduction arrangement, is supported in a bearing disposed on the engine mount. The aircraft includes a cage assembly for the operator's seat and has upright tubular rails and a pair of longitudinally extending side rails mounted on a shock absorbing landing gear. The landing gear has a nose wheel and a pair of laterally spaced rear wheels. The rear wheels are carried on the outer ends of a pair of longitudinally spaced, transversely extending tubular members. The forward of the tubular members is journaled for rotation on the underside of said side rails, and the rear member is releasably urged against the upper surface of the side rails by elastic bands or cords, which enable the rear member to move vertically relative to said side rails in response to landing impact. The aircraft is further constructed with full length ailerons, which are pivotably supported on the trailing edges on said wing. Each aileron is formed of a tubular frame disposed within a tapered fabric sheath which is in tension because of its tapered configuration and its dimensional relationship to the frame. The frame includes outer peripheral tubular portions and a plurality of parallel, laterally spaced cross tubes, each affixed at its outer end to the peripheral portion of the frame.
REFERENCES:
patent: 1773481 (1930-08-01), Fokker
patent: 1856306 (1932-05-01), Woodson et al.
patent: 1884849 (1932-10-01), Pitcairn et al.
patent: 4095760 (1978-06-01), Sommer et al.
patent: 4262863 (1981-04-01), Slusarczyr
`Ultralight Aircraft`, Markowski, Ultralight Publications, pp. 36-38, 133-134 and pp. 138-141.
Barefoot Galen L.
Ultralight Flight, Inc.
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