What type of power does the trim use to operate?

The trim operates using electromechanical power, which means it employs electrical energy to drive mechanical actuators. This system typically includes electric motors that convert electrical energy into mechanical movement, allowing for precise control of the trim surfaces on an aircraft, such as ailerons, elevators, and rudders.

Electromechanical systems are preferred in many modern aircraft because they enable more efficient operation, enhanced reliability, and easier integration with electronic flight control systems. They provide the necessary responsiveness for pilots to adjust the aircraft's trim settings effectively without relying on hydraulic or pneumatic systems.

In contrast, hydraulic systems utilize pressurized fluid to transfer power, while pneumatic systems use compressed air. Mechanical systems rely solely on physical components and linkages without the integration of electrical control or feedback mechanisms. Hence, the electromechanical approach is optimal for the controlled and reliable operation of trim functions in aviation.