What are the boost servos in an aircraft responsible for?

Boost servos in an aircraft are critical components that enhance the efficiency and precision of flight control movements by providing additional force to control surfaces. They assist the pilot in making necessary adjustments for yaw, roll, pitch, and collective control, allowing for smoother and more responsive handling of the aircraft.

Without boost servos, pilots would have to exert significantly more physical effort to control the aircraft, especially during complex maneuvers or when flying at high speeds. The assistance from boost servos makes it easier to maintain stability and control the aircraft efficiently, especially in dynamic flight conditions.

The other options relate to functions not performed by boost servos. For instance, controlling engine speed is typically managed by the throttle and related systems, while communication with ground control involves radio systems. Similarly, regulating fuel efficiency falls under engine management and overall aircraft performance, rather than the direct control inputs provided by boost servos.