Helicopter lifting and propelling apparatus

Details Helicopter lifting and propelling apparatus Helicopter lifting and propelling apparatus

1977-04-18

1979-10-02

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft, heavier-than-air

Helicopter or auto-rotating wing sustained, i.e., gyroplanes

60 3952, 60263, 416 91, 244207, 244208, B64C 2102

Patent

active

041695674

ABSTRACT:
A helicopter rotor is formed with spars and ribs. The spars form parts of the surfaces, and long slots are constructed in the spars to provide suction and blower slots. Air is withdrawn in slots nearest the leading edge, and engine exhaust is conducted to a suction/blowing device which in turn blows air through slots near the trailing edge. Helicopter engine exhaust is mixed with air and fuel and is recombusted. Air is drawn into a recombustion chamber of a suction/blowing device from suction surfaces on the helicopter rotor blades. This suctioned air is then re-routed to the slots near the trailing edge and blown over the upper and lower surfaces of the blade.

REFERENCES:
patent: RE23105 (1949-04-01), Stalker
patent: 2041789 (1936-05-01), Stalker
patent: 2164721 (1939-07-01), Price
patent: 2516489 (1950-07-01), Stalker
patent: 3442082 (1969-05-01), Peterson
Ernst et al., "YC-14 Sys. for Leading Edge BLC," AAAA Paper No. 74-1278, 10- 30-31/74.

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