rotor shaft
- noun
- Specialized
- You should always check the rotor shaft for any signs of wear before taking off in the helicopter.
Examples
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The helicopter's main rotor shaft is essential for its stability and control during flight.
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Where N is the number of data points of average hourly wind speeds being considered, and V_i, h are the wind speeds at the height (h) of the WECS rotor shaft.
Academic text (2001) -
When inspecting the aircraft, the technician found that the rotor shaft needed lubrication to ensure smooth operation.
Synonyms
A central rod that turns and supports other machine parts
A metal rod that turns and holds machine parts
A rod that turns to move parts in a machine
Surface Forms
Morphology
The meaning is directly and compositionally derived from 'rotor' (a rotating part) plus 'shaft' (a long central/axial piece): it denotes the shaft belonging to or forming the rotor's axis. This noun–noun compound follows a common, cross-linguistic possession/part-of pattern, so a B1 learner who knows both constituents will readily infer the meaning.
Etymology
Rotor shaft comes from a simple, literal image: the rotor is the spinning part and the shaft is the long metal rod it turns on. So the name means the central rod 'around which the rotor turns' today.