What is FADEC in a gas turbine engine?

What is FADEC in a gas turbine engine?

• A. FADEC stands for Full-Authority Digital Engine Control; a digital electronic fuel control for a gas turbine engine that operates during all engine operations, includes the EEC, works with the flight management computer, schedules fuel to the nozzles to prevent overshoot and over-temperature, and provides information to EICAS.
• B. FADEC is a hydraulic control system that regulates engine speed.
• C. FADEC is a manual override system for engine throttle.
• D. FADEC is a mechanical link between the throttle and the fuel pump.

Answer: (A)

FADEC stands for Full-Authority Digital Engine Control. It is a digital electronic system that governs all engine operation, handling fuel metering and other critical functions across every phase of flight. By collecting data from numerous sensors (such as speeds, temperatures, pressures, and fuel flow), it calculates the optimal fuel schedule to the injectors to maintain performance while preventing overshoot and over-temperature. FADEC also provides protection features to prevent engine damage and communicates engine status to the cockpit through the EICAS display, often working in coordination with the flight management computer. Redundancy is typically built in with dual-channel control to maintain operation if one channel fails. This electronic, fully automated control differs from hydraulic controls, manual throttle overrides, or mechanical linkages, which FADEC replaces with a single, integrated system.

FADEC stands for Full-Authority Digital Engine Control. It is a digital electronic system that governs all engine operation, handling fuel metering and other critical functions across every phase of flight. By collecting data from numerous sensors (such as speeds, temperatures, pressures, and fuel flow), it calculates the optimal fuel schedule to the injectors to maintain performance while preventing overshoot and over-temperature. FADEC also provides protection features to prevent engine damage and communicates engine status to the cockpit through the EICAS display, often working in coordination with the flight management computer. Redundancy is typically built in with dual-channel control to maintain operation if one channel fails. This electronic, fully automated control differs from hydraulic controls, manual throttle overrides, or mechanical linkages, which FADEC replaces with a single, integrated system.