What is the primary function of the main fuel control on the GE LM2500 gas turbine engine?

Correct Answer: Option C — To control stator vane angle and GG speed

The GE LM2500 main fuel control (MFC) acts as the primary governor for the gas generator (GG). It modulates fuel flow to maintain desired GG speed while simultaneously scheduling the variable stator vane (VSV) angles to optimize compressor efficiency and prevent aerodynamic stall across the engine's operating range.