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This SAE Aerospace Recommended Practice (ARP) provides recommendations for design and test requirements for self-displacing hydraulic accumulators.

This specification and a detail pump specification establish the requirements for variable flow hydraulic pumps, for use in aircraft hydraulic systems conforming to and as defined in MIL-H-5440 and MIL-H-8891, as applicable. The general requirements for type I and type II hydraulic systems pumps are specified in MIL-H-8775 and for type III system pumps in MIL-H-8890.

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.

This SAE Aerospace Recommended Practice (ARP) is a guide in establishing inspection procedures to determine the condition of in-service accumulators. Recommendations are also provided for corrective action if it is determined that the environment is contributing to the deterioration of the surface protection system treatments.

This specification and a detail pump specification establish the requirements for variable flow hydraulic pumps, for use in aircraft hydraulic systems conforming to and as defined in MIL-H-5440 and MIL-H-8891, as applicable. The general requirements for type I and type II hydraulic systems pumps are specified in MIL-H-8775 and for type III system pumps in MIL-H-8890.

Outline drawings from all known pump manufacturers for the various size pumps listed in MIL-P-7740 were requested and those received have been combined to make up the various outline drawings. There has been prepared a composite outline drawing enclosing all of the individual outline drawings. Since the pump manufacturers' drawings will change over a period of time and complete detail is not shown, it is not possible to make a detailed mockup of any specific pump. These drawings are intended to provide information concerning the general space requirement for variable delivery pumps, and could be used to manufacture a composite mockup to indicate roughly the space required on a new engine design.

This SAE Aerospace Recommended Practice (ARP) is intended as a guide in establishing inspection procedures to determine the condition of inservice accumulators. A minimum inspection program is recommended to determine the existence of corrosion and damage. Recommendations are also provided for corrective action if it is determined that the environment is contributing to the deterioration of the surface protection system treatments.

This Specification covers constant displacement hydraulic motors, generally remotely mounted, using hydraulic fluid under pressure as the energy transfer medium for driving various accessories. Hydraulic motors shall be suitable for use in aircraft hydraulic systems conforming to and as defined in MIL-H-5440 and MIL-H-8891 as applicable.

This Specification covers constant displacement hydraulic motors, generally remotely mounted, using hydraulic fluid under pressure as the energy transfer medium for driving various accessories. Hydraulic motors shall be suitable for use in aircraft hydraulic systems conforming to and as defined in MIL-H-5440 and MIL-H-8891 as applicable.

in this AIR should be considered, as opposed to long-life operation and environmental requirements of a manned aircraft, engine-driven pump. Appendix A is intended to indicate typical environments for several different types of missiles. The actual requirements for a given system should be used and specified in the detailed specification.Missile pumps are categorized by a moderate testing life and a relatively short operational service life. Generally, the pumps are operated at higher speeds, temperatures, and pressures than those used in manned aircraft systems, yet reliability must be extremely high, since there rarely is a redundant system aboard the missile. Due to the short but critical life and performance requirements, development, reliability and acceptance testing should be focussed on eliminating infant mortality failures. Missile pumps must be compatible with very severe environmental conditions during the service life.

This document provides an application guide for electric motors that drive aerospace hydraulic pumps. It provides details of the characteristics of electric motors powered by DC, Fixed Frequency AC, and Variable Frequency AC electrical systems. The applications include both military and commercial aircraft.

This SAE Aerospace Recommended Practice (ARP) contains technical information for conducting and evaluating the minimum inlet pressure capability of axial piston pumps.

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.

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.

Current: This SAE Aerospace Recommended Practice (ARP) provides design and test requirements for high pressure, factory pre-charged, welded bellows hydraulic accumulators. Only proposed change to scope is to change "pre-charged" to "precharged" to align with ARP4386. "Precharge" is one word and non-hyphenated in ARP4386.

This specification covers the general requirements for the design and construction of air/gas compressor units (see 6.4.1). The detail requirements for a particular air compressor unit shall be as specified in the individual equipment specification for that particular air compressor unit (see 6.2).

This specification covers the general requirements for the design and construction of air/gas compressor units (see 6.4.1). The detail requirements for a particular air compressor unit shall be as specified in the individual equipment specification for that particular air compressor unit (see 6.2).

This specification covers the general requirements for the design and construction of air/gas compressor units (see 6.4.1). The detail requirements for a particular air compressor unit shall be as specified in the individual equipment specification for that particular air compressor unit (see 6.2).