Tail-rotor arrangement for rotor crafts

Details Tail-rotor arrangement for rotor crafts Tail-rotor arrangement for rotor crafts

1975-08-27

1977-10-11

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

040532585

ABSTRACT:
The invention relates to a two-bladed tail rotor arrangement for gyroplanes and helicopters, comprising two plates fixed to a rotary shaft, between which are embedded the median portion of a flat flexible spar. On the ends of the said spar are fitted two shells which form the rotor blades and whose cross-section evolves in the blade root area to become circular, whereby the said shells are terminated by cylindrical sleeves fixed by bonding to flanges which are connected by elastic blocks to two plates. The rotor boss assembly can be provided with a cylindrical fairing.

REFERENCES:
patent: 2369048 (1945-02-01), Hays
patent: 2830669 (1958-04-01), Klockner
patent: 3002569 (1961-10-01), Doblhoff
patent: 3193019 (1965-07-01), Drees et al.
patent: 3231222 (1966-01-01), Scheutzow
patent: 3261407 (1966-07-01), Culver et al.
patent: 3484174 (1969-12-01), McCoubrey
patent: 3669566 (1972-06-01), Bourquardez et al.
patent: 3874815 (1975-04-01), Baskin
patent: 3880551 (1975-04-01), Kisovec

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