1) FADEC systems use digital controls and computers to precisely regulate factors like fuel flow and engine speed, allowing consistent engine performance. HUMS monitors helicopter components for faults or reduced lifespan. 2) FADEC systems have wiring to sensors, actuators, and the aircraft to allow the electronic engine control unit to compute and relay control signals. HUMS includes onboard and ground equipment to analyze vibration and performance data. 3) FADEC and HUMS provide benefits like reduced maintenance, lower costs, increased safety and reliability compared to older mechanical controls. HUMS requires cooperation across organizations for its maintenance approach.

1. FADEC and HUMS Full Authority Digital Engine Control And Helicopter Utilization Management System Issue 8, Melke