What does FADEC stand for?

• A. Fuel and Electronic Data Engine Controller
• B. Final Authority Digital Engine Control
• C. Full Authority Digital Engine Controls
• D. Fault-Tolerant Automatic Engine Control

Answer: (C)

The main idea here is understanding what FADEC stands for and what it implies about engine control. FADEC means a Full Authority Digital Engine Control system. That describes a processor-based engine management unit that has complete authority to govern how the engine runs—fuel metering, ignition timing, and other control functions—without requiring pilot adjustments for those aspects. Everything is handled digitally by the control computer using sensor inputs and actuators to optimize performance, efficiency, and safety. The wording in the choice you’re looking at conveys the same concept: a digital, fully authoritative control of the engine. The minor pluralization doesn’t change the meaning; the essential idea is that the engine is controlled fully and digitally by the FADEC system.