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Standard

Aerospace - Commercial Aircraft Hydraulic Systems

2000-03-01
HISTORICAL
AIR5005
This SAE Aerospace Information Report (AIR) has been compiled to provide information on hydraulic systems fitted to commercial aircraft. Data has been provided for the following aircraft types: a Wide body jet airliners; b Narrow body jet airliners; c Turboprop/commuter aircraft. The aircraft that have been included in this document are in operational service with either airlines or cargo operators. No information is presented for aircraft that are currently being developed.
Standard

Aerospace - Commercial Aircraft Hydraulic Systems

2010-05-11
CURRENT
AIR5005A
This SAE Aerospace Information Report (AIR) has been compiled to provide information on hydraulic systems fitted to commercial aircraft. Data has been provided for following aircraft types: a Wide body jet airliners b Narrow body jet airliners c Turboprop/commuter aircraft d Business jet aircraft The airliners that have been included in this document are generally in operational service with either airlines or cargo operators. Information on aircraft that have been retired from in-service use has been included for reference purposes. No information is presented for aircraft that are currently being developed.
Standard

Aerospace - Design and Installation of Commercial Transport Aircraft Hydraulic Systems

2013-12-02
CURRENT
ARP4752B
This SAE Aerospace Recommended Practice (ARP) provides guidance for the design and installation of a commercial aircraft hydraulic system to meet the applicable requirements, including the applicable airworthiness regulations that affect the hydraulic system design. This ARP also provides information and guidelines on the many factors that arise in the design process to provide cost effectiveness, reliability, maintainability and accepted design and installation practices.
Standard

Aerospace - Design and Installation of Commercial Transport Aircraft Hydraulic Systems

2007-07-05
HISTORICAL
ARP4752A
This SAE Aerospace Recommended Practice (ARP) establishes the requirements for the design and installation of a commercial aircraft hydraulic system, including the applicable airworthiness regulations that affect the hydraulic system. This ARP also provides information and guidelines on the many factors that arise in the design process to provide cost effectiveness, reliability, maintainability and accepted design and installation practices.
Standard

Aerospace Design and Installation of Commercial Transport Helicopter Hydraulic Systems

2014-10-09
CURRENT
ARP4925B
This SAE Aerospace Recommended Practice (ARP) establishes the factors which should be considered in the design and installation of a commercial transport rotorcraft hydraulic system, including the applicable airworthiness regulations that affect the hydraulic system. This ARP also provides information and guidelines on the many factors that arise in the design process to provide cost effectiveness, reliability, maintainability and accepted design and installation practices.
Standard

Commercial Aircraft Hydraulic System Sizing

2013-08-12
WIP
ARP6277
This document provides guidelines for sizing commercial aircraft hydraulic systems including determining the hydraulic flow demands for all phases of flight and hence sizing of the hydraulic pumps. In addition, details of sizing of hydraulic reservoirs and pipelines are also provided.
Standard

External Hydraulic Leakage for In-Service Components

2013-10-04
CURRENT
ARP1084A
The purpose of this SAE Aerospace Recommended Practice (ARP) is to provide guide lines for allowable leakage for in-service aircraft hydraulic components at a nominal 100 °F (38 °C) temperature and to outline the procedure for measuring such leakage. The limits to be applied to any specific aircraft should be adjusted before inclusion in a maintenance manual.
Standard

HYDRAULIC EXTERNAL LEAKAGE FOR IN-SERVICE COMPONENTS

1995-08-01
HISTORICAL
ARP1084
The allowable leakage for hydraulic components has been documented in various military specifications concerning components. The leakage requirements given in the military specifications are intended in part to control the quality, assembly and proper functioning of the components. However, components that are in service sometimes develop leakage rates in excess of the specified amount. This does not necessarily imply that the components have degraded to a degree that they no longer provide reliable operation or that they would be detrimental to the system. The intent of this ARP is to establish a level of allowable leakage that will be applicable only to in-service hydraulic components. It is hoped that this will result in minimizing what is often the unnecessary removal of hydraulic components from an aircraft.
Standard

Placarding of Aircraft Hydraulic Equipment to Identify Phosphate Ester Fluid Compatibility

2012-07-11
CURRENT
ARP1288B
This ARP defines a recommended placard for readily identifying equipment with aircraft phosphate ester fluid to be used in the aircraft hydraulic systems to assure compatibility between the internal seals/materials and the system fluid. A definition is provided for a durable type and semipermanently attached placard with prescribed text for the permissible fluid are included in the document.
Standard

Placarding of Aircraft Hydraulic Equipment to Identify Phosphate Ester Fluid Compatibility

1992-01-01
HISTORICAL
ARP1288A
This ARP defines a recommended placard for readily identifying equipment with aircraft phosphate ester fluid to be used in the aircraft hydraulic systems to assure compatibility between the internal seals/materials and the system fluid. A definition is provided for a durable type and semipermanently attached placard with prescribed text for the permissible fluid are included in the document.
Standard

Test Requirements and Means for Commercial Aircraft Hydraulic Systems

2014-10-08
CURRENT
ARP6200
This SAE Aerospace Recommended Practice (ARP) describes the recommended tests and their associated test means for commercial aircraft hydraulic systems at the system level that are required to demonstrate compliance with the 14 CFR Part 25 and EASA CS 25 airworthiness regulations, and to show that the required level of maturity at the aircraft entry into service (EIS) has been achieved.
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