What is FADEC?

FADEC is an acronym for Full Authority Digital Engine Control, a computer-managed aircraft ignition and engine control system used in modern commercial and military aircraft to control all aspects of engine performance digitally, in place of technical or analog electronic controls.

FADEC systems respond to pilot inputs, but also use data from sensors reading engine temperatures, engine pressure, fuel flow, air density, and much more to automatically adjust engine settings to optimize performance. They are also self-monitoring, include system redundancy to prevent failures, and allow programmable engine limitations.

Aircraft engine controls do exactly what the name implies – control how aircraft engines perform during flight. Early aircraft engines were controlled manually by a pilot or flight engineer moving mechanical levers, rods, valves, and more to adjust engine output. As aircrafts became larger, faster, and more complex, engine control systems evolved to maximize efficiency, improve safety, and make sure the engines perform more reliably.

Because they are digital, FADEC systems are also lighter, less bulky, and require less maintenance than older control systems, improving fuel efficiency, reducing maintenance costs, and allowing more aircraft innovation. Options for most appropriate FADEC systems vary by engine model and aircraft, but the highest-rated FADECs combine a long history of state-of-the-art development for premier engines on the world's top aircraft.


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