Reverse velocity rotor system for rotorcraft

Details Reverse velocity rotor system for rotorcraft Reverse velocity rotor system for rotorcraft

1978-07-12

1980-10-14

Vrablik, John J.

Fluid reaction surfaces (i.e., impellers)

Method of operation

416114, B64C 1130, B64C 2732

Patent

active

042278562

ABSTRACT:
A blade control method and means for helicopter rotors which increases heopter speed by mixing two/rev. control motion with one/rev. cyclic and collective motion through mechanical summation is provided. Both rotary and vertical motions are imparted to an inner control shaft and these motions are combined to impart vertical oscillatory motions to the rotor head which motions increase the thrust developed by the helicopter rotor.

REFERENCES:
patent: 2983319 (1961-05-01), Kaman et al.
patent: 3031017 (1962-04-01), Arcidiacono
patent: 3102597 (1963-09-01), Drees
patent: 3144908 (1964-08-01), Pascher
patent: 3572616 (1971-03-01), Ulisnik
patent: 3729272 (1973-04-01), Lemont

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