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freewheeling unit
- Definição1
- A device which transmitis torque in one direction only and disconnects in the other direction.
- Fonte1
- SCHAFER, Joe. Helicopter maintenance. Englewood: Jeppesen Sanderson, Inc., c2007. viii, 343 p.
- Definição2
- A component of the transmission or power train that automatically disconnects the main rotor from the engine when the engine stops or slows below the equivalent rotor r.p.m.
- Fonte2
- FEDERAL AVIATION ADMINISTRATION. Rotorcraft flying handbook (FAA-H-8083-21). Washington, DC: FAA, 2000. Disponível em: http://www.faa.gov/library/manuals/aircraft/media/faa-h-8083-21.pdf. Acesso em: 10 fev. 2012.
- Contexto
- There have been instances of freewheeling units failing to disengage the engine from the transmission thereby increasing the torque load in autorotation.
- Subárea
- Rotorcraft
- Français
- roue libre