Tag Archives: A320 PTU

Airbus A320 Hydraulic System Explained: Green, Blue, Yellow, PTU & RAT

Airbus A320 aircraft at sunset with title overlay explaining the Green, Blue and Yellow hydraulic systems, PTU and RAT.

The Airbus A320 hydraulic system consists of three independent hydraulic circuits operating at a nominal pressure of 3,000 psi. Understanding how the Green, Blue and Yellow systems work, how hydraulic power is distributed, and how the Power Transfer Unit (PTU) and Ram Air Turbine (RAT) provide redundancy is essential knowledge for A320 pilots, type-rating students […]