PROPELLER BLADE; BLADE FOR HELICOPTER TAIL ROTOR IN PARTICULAR Russian patent published in 2002 - IPC

Abstract RU 2190559 C2

FIELD: attachment units for securing propeller blades to hub. SUBSTANCE: blade for helicopter tail rotor has inner recess in root. Device for connecting the root of blade to rotor hub has rigid rod and flexible stop consisting of many laminar members located between two members of reinforcement in such way that stop may work as ball joint of limited action centered relative to axis of change of pitch. Rigid rod connects flexible stop with rotor hub inside blade root. EFFECT: reduced torsion loads at low radial overall dimensions of rotor hub. 14 cl, 6 dwg

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RU 2 190 559 C2

Authors

Muj Rene

Dates

2002-10-10—Published

1999-03-16—Filed