New Design Concepts in the DC-9 Hydraulic System 650323
The newest addition to the Douglas family of airplanes is the short to medium haul DC-9. This paper includes a brief description of the DC-9 hydraulic systems highlighting special design criteria. Also included is a discussion of some of the new built-in design features which have been incorporated to assist the airlines in trouble shooting and maintenance. The attendant reduction in unnecessary component removals will not only reduce operating costs and overhaul time but will also result in a marked improvement in reliability.