Method and apparatus to determine need for rotor blade pitch adj

Details Method and apparatus to determine need for rotor blade pitch adj Method and apparatus to determine need for rotor blade pitch adj

1976-04-16

1977-10-11

Blix, Trygve M.

Aeronautics and astronautics

Aircraft, heavier-than-air

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

73455, 244 1725, B64C 2772, G01M 122

Patent

active

040531236

ABSTRACT:
The output of an aircraft propulsion or lift rotor blade out-of-track pick-up is processed in such a way as to enable quick determination of need for blade pitch adjustment, the approximate amount of such adjustment to optimize reduction of out-of-track vibration, and the need for blade substitution when such optimized reduction is insufficient.

REFERENCES:
patent: 3795375 (1974-03-01), Lemnios
patent: 3802273 (1974-04-01), Helmuth et al.
patent: 3945256 (1976-03-01), Wilson et al.
patent: 3954229 (1976-05-01), Wilson

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