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.

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 system is designed for

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: Usage, filtration rating

Tubing data: Materials, sizes, wall thicknesses

Fitting data: Type, size range, material

Schematic diagram: System architecture, services supplied and details of power pressure and supply systems