Which component is powered by hydraulic pressure in aircraft systems?

Hydraulic pressure is a fundamental component in aircraft systems, particularly for controlling various mechanical systems that require significant force for operation. Flaps are an excellent example, as they are typically deployed and retracted using hydraulic actuators that allow for precise control of their position. The use of hydraulic pressure in flap systems enables the aircraft to improve its lift characteristics during different phases of flight, such as takeoff and landing, where increased lift is necessary.

Other systems in an aircraft, such as cabin lighting and avionics, generally rely on electrical power rather than hydraulic pressure. Fuel pumps may operate using various methods, including electric or pneumatic systems, but they are not primarily driven by hydraulic pressure like flaps are. Understanding the role of hydraulics in aircraft systems is crucial for aircraft operation and maintenance, particularly in knowing which components rely on hydraulic systems for their functionality.