What is the purpose of the EJet's autothrottle system?

The autothrottle system in the EJet is designed to maintain the desired airspeed automatically during flight. This system plays a crucial role in enhancing flight safety and efficiency by automatically adjusting the engine thrust based on current flight conditions and the set airspeed parameters. This reduces the pilot's workload, allowing them to focus on other critical aspects of flight management.

By continuously monitoring various flight parameters, the autothrottle can make real-time adjustments to maintain the selected airspeed, ensuring optimal performance and stability. This is particularly important during phases of flight such as ascent and cruise, where maintaining a specific speed is essential for safe operation and fuel efficiency.

The other choices pertain to functions that are not the primary role of the autothrottle system. Manual control of engine thrust typically falls under pilot operation, while landing gear positioning is handled by separate systems. Although fuel efficiency can be an indirect benefit of maintaining proper airspeed through the autothrottle, enhancing fuel efficiency specifically on the ground does not align with the primary function of this system.