What device is linked to the elevator trim tab actuator to automatically input pitch trim changes?

The correct answer involves understanding the function and interaction of various systems within an aircraft. The elevator trim tab actuator is linked to the speed brake, which plays a crucial role in automatically adjusting pitch trim changes during flight. When the speed brake is deployed, it alters the aerodynamic forces on the aircraft, necessitating adjustments to the pitch attitude.

This automatic input ensures that the aircraft maintains a stable flight profile without requiring constant manual adjustments from the pilot, thereby enhancing overall safety and operational efficiency. The trim system works in conjunction with the speed brake to offset any potential changes in pitch caused by the deployment of the speed brakes, allowing for smoother and more controlled flight operations.

In contrast, other options like nose wheel steering, elevator control surfaces, and yaw dampers do not fulfill this particular function related to automatic pitch trim adjustments in conjunction with the speed brake. Understanding the specific roles and interactions of these devices provides clarity on why the speed brake is the correct choice in this context.