PSI

PLANE SIDE ISSUE (PSI). Parachutes issued to paratroopers from the planeside or off the ramp on an aircraft for the purpose of chuting up and boarding the aircraft to participate in a subsequent airborne operation.

= relatively high PSI level which will break down your hydraulic oil ... - the means to increase the lifetime of your pump and hydraulic oil is a hydraulic oil reservoir tank.

0 PSI, maximum 30.0 PSI. There are two electric boost pumps as well as the engine driven fuel pump. The engine driven fuel pump can supply sufficient fuel pressure to run the engine up to 6,000 feet.

6 times the square root of the tire pressure in pounds per square inch (PSI). For an airplane with a main tire pressure of 24 pounds, the calculated hydroplaning speed would be approximately 42 knots.