What is the maximum hydraulic system operating pressure?

The maximum hydraulic system operating pressure for the A320 is indeed 3000 psi with a tolerance of plus or minus 200 psi. This specification indicates the design limits and operational parameters for the hydraulic systems, which are crucial for the functioning of various aircraft components such as landing gear, brakes, and control surfaces. Maintaining this pressure within the specified range ensures the efficient and safe operation of the hydraulic systems throughout various flight conditions.

Hydraulic systems in aircraft are subjected to significant stress and must operate within well-defined limits for reliability and safety. Exceeding the maximum pressure can lead to system failures or malfunctions, which is why understanding these specifications is vital for maintenance and operational procedures.

Other options present variations in pressure specifications that fall outside the established safe limits for the A320 hydraulic systems, either exceeding or not aligning with the engineering designs and safety standards put in place by Airbus for this aircraft model.