Helicopter rotor head

Details Helicopter rotor head Helicopter rotor head

1977-10-03

1980-01-08

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Articulated, resiliently mounted or self-shifting impeller...

Nonmetallic resilient mounting

416141, B64C 2738

Patent

active

041825977

ABSTRACT:
The present rotor head for a helicopter is free of flapping hinges and free of drag or lagging hinges. The rotor blades or wings are connected to the rotor head by a plurality of connecting plates which are flexible to bending moments. These plates are inserted into the blade roots of the helicopter wings and connected to the rotor head proper. The planes defined by these connecting plates intersect in the axis of the rotor blades or wings.

REFERENCES:
patent: 3384185 (1968-05-01), Fernandez
patent: 3606575 (1971-09-01), Lermusiaux
patent: 3669566 (1972-06-01), Bourquardez et al.
patent: 3874815 (1975-04-01), Baskin
patent: 3880551 (1975-04-01), Kisovec
patent: 3999887 (1976-12-01), McGuire
patent: 4008980 (1977-02-01), Noehren et al.
patent: 4047839 (1977-09-01), Ferris et al.

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