Which component supports the main rotor?

Which component supports the main rotor?

• A. Mast
• B. Skids
• C. Tail Rotor
• D. Fuselage

Answer: (A)

The main rotor is supported by the mast. The mast is a vertical column that connects the rotor hub to the transmission and engine, carrying the rotor’s loads into the airframe. It provides the structural path for the rotor to spin and for the lift and torque from the rotor to be transmitted to the helicopter. The other parts have different roles: the skids are landing gear and don’t carry rotor loads, the tail rotor provides anti-torque and yaw control, and the fuselage is the main body housing the crew, engine, and systems. But the rotor’s support and load transfer come through the mast, making it the correct component.

The main rotor is supported by the mast. The mast is a vertical column that connects the rotor hub to the transmission and engine, carrying the rotor’s loads into the airframe. It provides the structural path for the rotor to spin and for the lift and torque from the rotor to be transmitted to the helicopter.

The other parts have different roles: the skids are landing gear and don’t carry rotor loads, the tail rotor provides anti-torque and yaw control, and the fuselage is the main body housing the crew, engine, and systems. But the rotor’s support and load transfer come through the mast, making it the correct component.