Circulation controlled rotary wing aircraft and control system t

Details Circulation controlled rotary wing aircraft and control system t Circulation controlled rotary wing aircraft and control system t

1975-02-26

1976-11-09

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Drive by fluid reaction jet on working member

Articulated or flexible connection

416 90A, 416 18, B64C 2718

Patent

active

039908119

ABSTRACT:
A control system for rotary wing aircraft having a circulation controlled tor is provided. Two axial flow air compressors driven from the engine input shaft provide an air flow which is ducted to the rotor blades through a bifurcated duct and a non-rotating air plenum and released through spanwise slots in the blades. Damping is accomplished by a conically shaped diverter valve in the air plenum and a butterfly valve adjacent the air compressors. Aircraft stability is achieved through a gyro coupled to the rotor shaft which integrates pilot controlled input with rotor cyclic flap moment input.

REFERENCES:
patent: 1982968 (1934-12-01), Stalker
patent: 2519762 (1950-08-01), Hoffmann et al.
patent: 2547721 (1951-04-01), Stalker
patent: 2581773 (1952-01-01), Stalker
patent: 3005496 (1961-10-01), Nichols
patent: 3039537 (1962-06-01), Heidelberg
patent: 3211397 (1965-10-01), Laing et al.
patent: 3524711 (1970-08-01), Cheeseman et al.
patent: 3525576 (1970-08-01), Dorand
patent: 3713750 (1973-01-01), Williams
patent: 3883266 (1975-05-01), Soulant

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