What is the normal hydraulic pressure range?

The normal hydraulic pressure range for many aircraft systems is typically around 3000 psi, with a tolerance that allows for slight variations due to operational conditions, system design, and manufacturing tolerances. The specification of 3000 ± 120 psi aligns with standard operating limits in the industry, where achieving consistent hydraulic pressure is crucial for the effective operation of flight control systems and other hydraulic components. This range ensures that the hydraulic systems maintain sufficient pressure to perform necessary functions while providing a buffer for fluctuations that may occur during operation.

Understanding why this specific range is functional involves recognizing that hydraulic systems need to work within a specified pressure for safety, reliability, and efficiency. If the pressure were too low, it might result in insufficient power for actuators and other components, while excessive pressure could lead to component failures or leaks.

Other options present different pressure ranges, but they do not reflect the most common industry standard for hydraulic systems in aviation, making them less accurate for this context.