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Assessment of the Flammability of Aircraft Hydraulic Fluids

Report Number: AFAPL TR 79-2055
Author: Parts, Leo
Corporate Author: Monsanto Research Corporation
Laboratory: Air Force Aero Propulsion Laboratory
Date of Publication: 1979-07-01
Pages: 85
AD Number: ADA076521

The main thrust of the program was directed toward two objectives: (1) development of apparatus for the measurement of ignitability characteristics of fluids at high temperatures (up to 930 C), and (2) the use of that and other apparatus for the determination of ignitability, flame propagation properties, and heats of combustion of a number of aircraft fluids. These included currently used hydraulic fluids, candidate nonflammable hydraulic fluids, and other aircraft fluids such as lubricants, fuels, and heat transfer fluids. The studies were successful in the identification of candidate nonflammable hydraulic fluids. These fluids were identified as Halocarbon AO-8, Freon E6.5, and Brayco 814Z. A semiautomatic ignition test apparatus was built that can be used for measurements at temperatures up to 1000 C. The operation range of a hot manifold ignition test apparatus was extended up to 930 C.

Rick Gaines
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