1983-10-03

The Boeing 767 Hydraulic System 831488

The hydraulic system for the new Boeing 767 twin-jet transport operates the fully powered flight control surfaces, secondary control surfaces for high lift, and utility actuation systems. The use of three independent distribution systems provides safety and reliability exceeding the latest Federal requirements. The system design enhances customer affordability of the airplane by utilizing major components that are common with those on other commercial airplanes and qualified for long life expectancy. System operation is controlled to respond to on-demand requirements for flow and isolate utilities during cruise to minimize prime power extraction. The effectiveness of the system has been proven by extensive flight testing that demonstrated compliance with all design requirements proving the system to rate the distinction as a design model for the future.

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