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.

The following information is provided for each aircraft

Design requirements: Governing airworthiness regulations

System pressure: Fluid power system operating pressure

Hydraulic fluid: Type of fluid the hydraulic system uses

Number of hydraulic systems: Number and identification of independent hydraulic systems

System temperature: Minimum and maximum design operating temperatures

Main hydraulic pump data: Flow, pressure, displacement

Auxiliary pump data: System auxiliary pump or back-up data

Hydraulic motor data: System hydraulic motor requirements

Accumulator data: Usage, volume and precharge requirements

Reservoir data: Type, volume and pressure

Relief valve data: Usage, crack and reseat pressures, rated flow

Filtration data: Usage, filtration rating

Tubing data: Materials, sizes, wall thicknesses

Fitting data: Type, size range, material

Schematic diagram: System architecture, services supplied