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AIRCRAFT FUEL SYSTEM VAPOR-LIQUID RATIO PARAMETER

1974-01-01
HISTORICAL
AIR1326
The AIR is limited to a presentation of the historical background, the technical rationale which generated the V/L fuel condition interface requirement in specifications between the aircraft fuel delivery system and the aircraft engine fuel system, and limitations in the usage of the V/L concept.
Standard

Aircraft Engine Fuel Feed and Transfer Component Pressure Definitions

1991-02-13
CURRENT
AIR1749
The information in this document is limited to aircraft engine fuel feed, refueling, and transfer components (reference 2.1). It is assumed that isothermal, liquid fluid conditions exist, herein referred to as fuel. Where a unit of measure is suffixed, this is intended to show a generally associated unit for illustration only and is not an exclusive endorsement of this particular term. Where applicable and allowable it is understood that a referee fluid may be substituted for fuel.
Standard

Aircraft Engine Fuel Pump Cavitation Endurance Test

1957-11-15
HISTORICAL
ARP492
This SAE Aerospace Recommended Practice (ARP) defines procedures for testing aircraft engine fuel pumps for th epurpose of determining their resistance to eterioration, during steady state endurance test, while receiving MIL-T-5624 Grade JP-4 fuel as a homogenous mixture of gas and liquid expressed as a ratio of vapor volume to liquid volume (V/L). The procedure recommended herin is based on experience gathered by a number of laboratories conducting component qualification tests to MIL-E-5009, currently MIL-E-5007. It is intendd to produce a uniform reproducible steady state test condition for fuel pump cavitation testing as required by various military engine specifications. This test is NOT intended to establish altitude, climb rate, starting, or other transient performance of the article tested.
Standard

Aircraft Engine Fuel Pump Cavitation Endurance Test

1994-12-01
CURRENT
ARP492C
This SAE Aerospace Recommended Practice (ARP) defines procedures for testing aircraft engine fuel pumps for the purpose of determining their resistance to deterioration, during steady state endurance test, while receiving MIL-T-5624 Grade JP-4 fuel as a homogenous mixture of gas and liquid expressed as a ratio of vapor volume to liquid volume (V/L). If any of the above conditions do not apply, refer to Section 2.
Standard

Aircraft Fuel Pump Mechanical and Electrical Safety Design

2017-10-10
CURRENT
ARP6385
The requirements presented in this document address the key considerations for mechanical and electrical safety in aircraft fuel pump design. Document sections focus on understanding safety relative to an electrically motor driven fuel pump assembly acting as an ignition source for explosive fuel vapors within the airplane tank.
Standard

Aircraft Fuel System Pressure Definitions

2018-06-05
WIP
AIR1749A
The information in this document is limited to aircraft engine fuel feed, refueling, and transfer components. It is assumed that isothermal, liquid fluid conditions exist, herein referred to as fuel. Where a unit of measure is suffixed, this is intended to show a generally associated unit for illustration only and is not an exclusive endorsement of this particular term. Where applicable and allowable it is understood that a referee fluid may be substituted for fuel.
Standard

Aircraft Fuel System Vapor-Liquid Ratio Parameter

1997-12-01
CURRENT
AIR1326A
The AIR is limited to a presentation of the historical background, the technical rationale which generated the V/L fuel condition interface requirement in specifications between the aircraft fuel delivery system and the aircraft engine fuel system, and limitations in the usage of the V/L concept.
Standard

Aircraft Turbine Engine Fuel System Component Endurance Test Procedure (Room Temperature Contaminated Fuel)

2015-08-24
CURRENT
MAP749C
This SAE Aerospace Recommended Practice describes a method for conducting room temperature, contaminated fuel, endurance testing when the applicable specification requires nonrecirculation of the contaminants. The objective of the test is to determine the resistance of engine fuel system components to wear or damage caused by contaminated fuel operation. It is not intended as a test for verification of the component's filter performance and service life. ARP1827 is recommended for filter performance evaluation.
Standard

Aircraft Turbine Engine Fuel System Component Endurance Test Procedure (Room Temperature Contaminated Fuel)

1992-04-06
HISTORICAL
MAP749B
This recommended practice describes a method for conducting room temperature, contaminated fuel, endurance testing when the applicable specification requires nonrecirculation of the contaminants. The objective of the test is to determine the resistance of engine fuel system components to wear or damage caused by contaminated fuel operation. It is not intended as a test for verification of the component's filter life. ARP1827 is recommended for filter evaluation.
Standard

Aircraft Turbine Engine Fuel System Component Endurance Test Procedure (Room Temperature Contaminated Fuel)

1981-09-30
HISTORICAL
MAP749A
This recommended practice describes a method for conducting room temperature, contaminated fuel, endurance testing when the applicable specification requires nonrecirculation of the contaminants. The objective of the test is to determine the resistance of engine fuel system components to wear or damage caused by contaminated fuel operation. It is not intended as a test for verification of the component's filter life. ARP1827 is recommended for filter evaluation.
Standard

Aircraft and Aircraft Engine Fuel Pump Low Lubricity Fluid Endurance Test

1999-04-01
CURRENT
ARP1797A
This procedure is intended to apply to fuel pumps. This procedure will be defined in terms of recommended test fluid, test setup, test conditions, and test method. This procedure may be used for other fuel system components, by testing in conjunction with the pump, which normally supplies the component inlet flow, or a substitute test pump of similar capacity. This procedure may be used, with variations in test conditions and test fluid for performing pump evaluation tests. Tests at progressively increasing pump speeds and pressures will provide design limitation data. Alternate test periods on a test pump and another pump, of a design for which actual service durability is known, will provide useful comparison data.
Standard

Aircraft/Engine Fuel Pump Net Positive Suction Pressure Performance Test and Evaluation

1994-05-01
CURRENT
ARP4024
This procedure applies to engine or airframe-mounted fuel pumps. The procedure recommends single-pass operation to minimize changes in fuel properties affecting NPSP capability. An optional method using a recirculation system is also included and may be specified at the discretion of the equipment specification. This procedure defines the recommended test setup, test procedure, data acquisition, and data presentation.
Standard

Aircraft/Engine Fuel Pump Two Phase (Slugging Flow) Inlet Performance Test and Evaluation

1994-09-01
CURRENT
ARP4028
This procedure is intended to apply to all engine or airframe mounted fuel pumps and controls when required by the applicable specification. The procedure recommends a recirculation system similar to ARP492 to control the fuel properties affecting the fluid and its ability to "release" fuel vapors and dissolved air and have these "re-entrained or dissolved" during the fluid recovery process back to the tank and the original starting conditions.
Standard

BALL-ON-CYLINDER (BOC) AIRCRAFT TURBINE FUEL LUBRICITY TESTER

1990-05-01
HISTORICAL
AIR1794
This metric Aerospace Information Report (AIR) details a ball-on-cylinder (BOC) test device and specifies a method of rating the relative lubricity of aviation turbine fuel samples. The BOC produces a wear scar on a stationary steel ball by forcing it with a fixed load against a fuel wetted steel test ring in a controlled atmosphere. The test ring is rotated at a fixed speed so its surface is wetted by a momentary exposure to the fluid under test. The size of the wear scar is a measure of the test fluid lubricity and provides a basis for predicting friction or wear problems. This ARP is intended as a guide toward a standard practice, but may be subject to frequent change reflecting experience and technical advances. Use of this AIR is not recommended where flexibility of revision is impractical. Anyone interested in current information on BOC developments and technology should contact the Coordinating Research Council (CRC) Aviation Group on Aviation Fuel Lubricity.
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