Which component is responsible for supporting the main rotor assembly?

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Multiple Choice

Which component is responsible for supporting the main rotor assembly?

Explanation:
The mast is the central structural element that supports the main rotor assembly. It sits between the transmission and the rotor head, providing a fixed axis for the rotor to spin around and carrying the rotor hub and blades. The engine’s power is transmitted through the transmission to the rotor via this mast, which also takes the lift and other loads from the rotor into the airframe. The other options aren’t involved in supporting the rotor: a navigation aid is for navigation, night refers to lighting conditions, and load factor describes the forces on the helicopter during flight.

The mast is the central structural element that supports the main rotor assembly. It sits between the transmission and the rotor head, providing a fixed axis for the rotor to spin around and carrying the rotor hub and blades. The engine’s power is transmitted through the transmission to the rotor via this mast, which also takes the lift and other loads from the rotor into the airframe. The other options aren’t involved in supporting the rotor: a navigation aid is for navigation, night refers to lighting conditions, and load factor describes the forces on the helicopter during flight.

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