Helicopters equipped with jet dilution/deflection means for the

Details Helicopters equipped with jet dilution/deflection means for the Helicopters equipped with jet dilution/deflection means for the

1995-12-14

2000-09-26

Poon, Peter M.

Aeronautics and astronautics

Aircraft, heavier-than-air

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

244 53R, 244121, B64C 2700

Patent

active

061232904

ABSTRACT:
This relates to a helicopter in which the outlet nozzle from the turbine engine is provided with an exhaust pipe which mixes the combustion gases with fresh air and directs the mixture downward. Viewed from the outside of the helicopter, the exhaust pipe is completely concealed by a cowling which is separated from said exhaust pipe by an empty intermediate space, air intakes being provided to create a flow of ambient air, including during hovering flight, along the intermediate space as far as an outlet which is open substantially vertically downward.

REFERENCES:
patent: 3540680 (1970-11-01), Peterson
patent: 3921906 (1975-11-01), Nye et al.
patent: 3930627 (1976-01-01), Miller
patent: 4018046 (1977-04-01), Hurley
patent: 4136518 (1979-01-01), Hurley et al.
patent: 4312480 (1982-01-01), Miller
patent: 4566270 (1986-01-01), Ballard et al.
Air International / Jan. 1990--MIL MI-28 HAVOC-Cutaway Drawing.

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