What does FADEC stand for?

FADEC stands for Full Authority Digital Engine Control. This system is crucial in modern aviation because it provides comprehensive control over an aircraft's engine performance, enabling automatic adjustments to optimize engine operation under various conditions. By having full authority, FADEC can manage all aspects of the engine's performance without the need for manual intervention by the pilot, leading to improved efficiency, reduced pilot workload, and enhanced safety.

The other options, while they may seem plausible, do not accurately reflect the established terminology used in aviation. FADEC specifically refers to a system that integrates various parameters and systems, allowing for an effective digital control strategy that can respond in real-time to flight conditions and engine requirements. This level of control and integration is what distinguishes FADEC from other control systems that might be mentioned in alternative terms.