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The Basic Aircraft Hydraulic System

June 01, 2013
Jean Van Rensselar
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THE BASIC AIRCRAFT HYDRAULIC SYSTEM
While each aircraft hydraulic system is a little different, a basic system consists of a reservoir, electric or engine-driven pump, a fluid filter, a relief valve to relieve excess pressure and multiple electrohydraulic actuators. The pump provides flow to meet the demands of the various actuators. The actuators are controlled by electrohydraulic servo valves (most flight control systems have tandem valves and actuators for redundancy purposes). The relief valve provides over-pressurization protection for the system.
 
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