What component moves the flap after receiving hydraulic fluid?

The component responsible for moving the flap after receiving hydraulic fluid is the flap actuator. This device specifically transforms the hydraulic energy from the fluid into mechanical motion that adjusts the position of the flap. The flap actuator is crucial in aircraft systems, as it precisely controls the deployment and retraction of flaps, allowing the aircraft to manage lift and drag effectively during different phases of flight.

Other components mentioned, such as the flap torque tube and hydraulic cylinder, play different roles within the system. The flap torque tube typically connects to the actuator and ensures the movement of the flap is synchronized and effective. The hydraulic cylinder may assist in generating the force needed to drive the actuator, but it does not directly perform the function of moving the flap. The pneumatic actuator, while similar in concept, utilizes air pressure rather than hydraulic fluid and is not relevant to systems that specifically use hydraulic fluid for flap operation. By understanding the specific functions and interactions of these components, one can appreciate the importance of the flap actuator in controlling flight mechanisms.