What is the normal hydraulic system operating pressure for the green hydraulic system?

The normal hydraulic system operating pressure for the green hydraulic system on the A320 is indeed 3000 PSI. This pressure is standard for the system to ensure adequate performance of the aircraft's various hydraulic components, including the landing gear, flight controls, and brakes. A pressure of 3000 PSI strikes a balance between providing the necessary force for operation while also maintaining system integrity and safety.

In aviation systems, hydraulic pressures are critical for effective functionality, and pressures too low could result in inadequate performance of flight control surfaces, whereas pressures too high may pose risks of system failure or damage. Thus, 3000 PSI serves as a reliable operating range that meets the operational demands of the aircraft while ensuring that safety and efficiency are prioritized.