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This SAE Aerospace Recommended Practice (ARP) establishes the minimum requirements and procedures for the design, construction, testing and performance of aerospace, maintenance free, factory pre-charged hydraulic accumulators. The accumulators are designed for use in aircraft hydraulic systems at maximum rated operating pressures up to 8000 psi (55158 KPa). The temperature range of the accumulator is -65 to 275 °F (-54 to 135 °C).

Gas for the purpose of this ARP shall be defined as the gaseous produces) resulting from the decomposition, dissociation, or combustion of liquid or solid mono or bi-propellants. Where other gases such as heated N2, H2, H2O (steam), etc., which may have similar physical and/or chemical properties as the defined "gas", are used to effect testing economies; they may be considered as being included in this ARP.

It is intended that this SAE Aerospace Recommended Practice (ARP) will set down guidelines for the development and test of gas motors to provide a practical and reliable hot gas rotary actuation mechanism. Specific operational and test requirements shall be specified in a detail specification.

It is intended that this SAE Aerospace Recommended Practice (ARP) will set down guidelines for the development and test of gas motors to provide a practical and reliable hot gas rotary actuation mechanism. Specific operational and test requirements shall be specified in a detail specification.

This specification establishes the common requirements for variable delivery electric motor driven, hydraulic pump units, suitable for use in aircraft hydraulic systems.

This specification establishes the common requirements for variable delivery electric motor driven, hydraulic pump units, suitable for use in aircraft hydraulic systems.