What does the FLI needles indicate in a helicopter's display?

• A. RPM
• B. TRQ
• C. Torque
• D. Power Setting

Answer: (B)

The FLI, or Flight Load Indicator, displays essential information regarding the helicopter's engine performance and power management. Specifically, the FLI needles indicate the torque being produced by the engines. Torque is a critical parameter for assessing the engine's ability to generate power to maintain flight, especially in relation to the maximum allowable torque limits.

Typically, there are dual needles on the FLI display that show the torque for each engine individually or as a combined value, allowing pilots to monitor their power usage effectively. Understanding torque is especially important for performance calculations, ensuring that the helicopter operates within safe limits during various phases of flight, such as takeoff, climb, and hover.

While RPM (revolutions per minute), torque itself (which can sometimes refer to the same concept depending on context), and power settings are vital for overall flight performance, they do not represent the specific function of the FLI. The FLI primarily focuses on torque as its key indicator, making the distinction clear.