Hydraulic Fluid Performance Standards for Present and Future Commercial Jet Aircraft 640519
The rising costs of the air transport industry can be justified only by safe, reliable aircraft that satisfy a variety of operational demands and route structures. The fluid used in hydraulic systems is one of the strongest links in this total system of safety, reliability, and maximum utilization, and may indeed be crucial in supersonic craft of the future. This paper describes the chemical properties of hydraulic fluids, how they relate to present and advanced designs, and points up maintenance problems and their solutions.