main rotor
Học thuậtThân thiện
Definition
- Noun:
- The primary rotating assembly of airfoils (blades) on a helicopter that generates the aerodynamic lift necessary to keep the aircraft airborne. It is the principal rotor system, as opposed to a smaller tail rotor.
Usage
- The term main rotor is used specifically to describe the large, horizontal rotor system that provides lift and propulsion for a helicopter. It is a technical term central to aviation and aeronautical engineering.
Examples
- Noun:
- The helicopter's main rotor began to spin faster as it prepared for takeoff.
- Engineers conducted a thorough inspection of the main rotor blades after the flight.
- The force generated by the main rotor is what allows a helicopter to hover in one place.
Advanced Usage
- The main rotor system's pitch and rotation speed are controlled by the pilot to maneuver the helicopter.
- In technical descriptions, the main rotor is often contrasted with the anti-torque tail rotor.
Variants and Related Words
- Rotor (n): A general term for a rotating part of a machine. In aviation, it can refer to the main rotor, tail rotor, or the propeller of an aircraft.
- Tail rotor (n): The smaller, vertical rotor mounted at the tail of a conventional helicopter, used to counteract the torque produced by the main rotor and provide directional control.
- Rotor blade (n): An individual airfoil that is part of the main rotor assembly.
- Rotor head (n): The central hub to which the main rotor blades are attached and which facilitates their complex motions.
Synonyms
- Lifting rotor: A direct synonym emphasizing its function.
- Primary rotor: A synonym emphasizing its role as the principal system.
Related Phrases
- Main rotor disk: The circular area swept by the rotating main rotor blades.
- Main rotor mast: The shaft that transmits power from the engine to the main rotor head.
Noun
- rotor consisting of large rotating airfoils on a single-rotor helicopter that produce the lift to support the helicopter in the air