The TWIST GRIP caution light will illuminate until the twist grip is placed in which position?

The TWIST GRIP caution light will illuminate until the twist grip is placed in which position?

• A. Idle (I)
• B. Flight (F)
• C. Ground (G)
• D. Takeoff (T)

Answer: (B)

The twist grip acts as the engine throttle and sets the power range for the aircraft. The warning light stays on until the twist grip is moved to the Flight position because that position represents the normal, safe power setting for in-flight operation. In flight, the engine power and rotor speed are within the approved range, so the system clears the warning. Idle, Ground, or Takeoff are outside the standard in-flight operating range, so leaving the twist grip in those positions does not meet the flight configuration the warning is checking for. Therefore, the light remains illuminated until the proper flight setting is selected.

The twist grip acts as the engine throttle and sets the power range for the aircraft. The warning light stays on until the twist grip is moved to the Flight position because that position represents the normal, safe power setting for in-flight operation. In flight, the engine power and rotor speed are within the approved range, so the system clears the warning.

Idle, Ground, or Takeoff are outside the standard in-flight operating range, so leaving the twist grip in those positions does not meet the flight configuration the warning is checking for. Therefore, the light remains illuminated until the proper flight setting is selected.