Final answer:
FADEC controls aircraft engine performance with power sources being the engine-driven alternator or generator, and a backup like a battery. It provides important engine data for optimization, safety, and problem troubleshooting.
Step-by-step explanation:
The Full Authority Digital Engine Control (FADEC) is a system in the fields of aerodynamics and engineering that manages all aspects of aircraft engine performance, such as fuel flow and variable valve timing. FADEC's power sources primarily include the engine-driven alternator or generator and battery. It's crucial to have a backup source, like a battery, for redundancy.
Regarding indications, FADEC often provides essential data on engine parameters, for troubleshooting purposes or efficiency improvements. Examples of vital indications include engine speed, pressure ratios, temperatures and fuel flow rates. Such data is crucial for optimizing performance, ensuring safety, and troubleshooting any engine problems. Consequently, FADEC dramatically reduces the workload of pilots.
Learn more about FADEC