What component establishes proper fuel scheduling for the engine based on various inputs?

• A. Free wheeling unit
• B. Engine driven fuel pump
• C. Fuel boost pumps
• D. Fuel control unit

Answer: (D)

The fuel control unit is responsible for establishing proper fuel scheduling for the engine. This component takes various inputs, such as engine speed, temperature, and pressure, to determine the optimal amount of fuel that should be delivered to the engine for efficient operation. By adjusting the fuel flow based on these parameters, the fuel control unit ensures that the engine runs smoothly across different conditions and power settings, maintaining both performance and efficiency.

Other components like the engine driven fuel pump and fuel boost pumps are critical for delivering fuel to the engine but do not directly manage the scheduling aspect. The free-wheeling unit is unrelated to fuel delivery and instead pertains to the drivetrain and rotor systems of the helicopter. Thus, the fuel control unit is the key component for fuel scheduling based on various operational inputs.