FM 1-509: Fundamentals of Aircraft Pneudraulics | T.REX ARMS Field Manual Vault

FM 1-509 Fundamentals of Aircraft Pneudraulics

FM 1-509

Fundamentals of Aircraft Pneudraulics

Army · FM · Jan 1987

About

Hydraulic systems perform a variety of functions in Army aircraft. They are used in fixed-wing aircraft to change the propeller pitch and operate the landing gear, wing flaps, wheel brakes, and shock struts. Also, they are used in helicopters to start engines and operate brakes, shock struts, dampers, flight control systems, loading ramps, folding pylons, winch hoists, and hydraulic clutches. ADVANTAGES A hydraulic system has many advantages: It is almost 100 percent efficient. The slight loss of efficiency (a fraction of 1 percent) is due to internal friction in the system machinery. Moving parts of a hydraulic system are lightweight and can quickly be put into motion or brought to rest. The valves in a hydraulic system quickly start or stop the flow of fluid under pressure; very little effort is needed to operate them.

DesignationFM 1-509

EditionJan 1987

StatusSuperseded

FunctionAviation

CollectionRecent Archive

References 3

TM 55-1500-204-25Not in the Vault
TM 43-0104Not in the Vault