Final answer:
FADEC systems provide numerous advantages over hydromechanical fuel control, such as consistent and precise engine performance, improved fuel economy, and greater reliability, while also reducing CO₂ emissions and extending engine life through smoother operation and automated engine protection mechanisms.
Step-by-step explanation:
The advantages of a Full-Authority Digital Engine Control (FADEC) system over traditional hydromechanical fuel control are numerous. The FADEC system, which is an example of computerized engine controls, continuously monitors and adjusts engine parameters for optimal performance. This ensures greater fuel efficiency, leading to lower CO₂ emissions and reduced operating costs.
FADEC systems offer improved engine reliability and maintainability by precisely controlling the engine throughout its entire operating range. This precision allows for smoother engine operation, which reduces the mechanical strain and extends engine life. Moreover, a FADEC system provides automated engine protection against conditions that could cause damage, such as over-temperature or over-speed scenarios.
Another key advantage of FADEC is that it can adapt to various fuel qualities and environmental conditions. It ensures the engine operates efficiently even when conditions are not ideal, such as high altitude or temperature variations. These features contribute to enhanced safety, lower maintenance needs, and better management of fuel economy, thus highlighting the superiority of FADEC systems over older hydromechanical controls.