Rotorcraft blade-vortex interaction controller

Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes

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Details

244 1N, 244199, B64C 2700

Patent

active

054374197

ABSTRACT:
Blade-vortex interaction noises, sometimes referred to as "blade slap", are avoided by increasing the absolute value of inflow to the rotor system of a rotorcraft. This is accomplished by creating a drag force which causes the angle of the tip-path plane of the rotor system to become more negative or more positive.

REFERENCES:
patent: 1789254 (1931-01-01), Perrin
patent: 1801184 (1931-04-01), Yost
patent: 2189553 (1940-02-01), Schut
patent: 2461967 (1949-02-01), Devlin et al.
patent: 2698149 (1954-12-01), Greenwood et al.
patent: 2959373 (1960-11-01), Zuck
patent: 2993413 (1961-07-01), McCormack
patent: 3081052 (1963-03-01), Michel
patent: 3431119 (1969-03-01), Miller
patent: 3464651 (1969-09-01), Lightfoot
patent: 3483696 (1969-12-01), Gilbert et al.
patent: 3532301 (1970-10-01), Swatton
patent: 3554467 (1971-01-01), Yowell
patent: 3776363 (1973-12-01), Kuethe
patent: 3779338 (1973-12-01), Hayden et al.
patent: 3848831 (1974-11-01), Geary
patent: 4036452 (1907-07-01), Schairer
patent: 4245802 (1981-01-01), Jong, Jr.
patent: 4447022 (1984-05-01), Lion
patent: 4462559 (1984-07-01), Garza
patent: 4730795 (1988-03-01), David
patent: 4739957 (1988-04-01), Vess et al.
patent: 4795308 (1989-01-01), Fischer et al.
patent: 5050822 (1991-09-01), Whitehouse et al.
patent: 5209430 (1993-05-01), Wilson et al.

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