A320 Ram Air Turbine Test

I made a trip over to the Delta hanger and watched an A-320 Ram Air Turbine test tonight. They pumped 25 gpm of hydraulic fluid into the RAT from an external pump and observed close to 3,000 psi internal aircraft hydraulic pressure. Long story short is that they simulated the RAT operating to check that it will maintain hydraulic pressure in case of a hydraulic failure in the air.