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Standard

Assessment of Aircraft Wheel Sealing Systems

2020-09-17
CURRENT
ARP5146
This SAE Aerospace Recommended Practice (ARP) is intended to provide guidance on verifying the integrity of inflation pressure sealing systems of aircraft wheel/tire assemblies.
Standard

USAF Aircraft Wheels

2012-07-19
CURRENT
AIR4012C
This SAE Aerospace Information Report (AIR) documents general technical data associated with many of the wheels used in the Air Force.
Standard

Military Service Experience - Aircraft Wheels

2000-10-01
HISTORICAL
AIR4012A
This SAE Aerospace Information Report (AIR) is intended to provide general background on aircraft wheel service lives on military aircraft and wheel laboratory test requirements as specified by military procurement agencies or aircraft manufacturers. Wheel service life in this document refers to the lowest life wheel half or flange in a wheel assembly measured in years (excluding bearing, bolt, and other removals). This information is intended as a reference guide for those responsible for specifying original equipment (OE) wheel laboratory test requirements.
Standard

Wheel Roll on Rim Criteria for Aircraft Applications

2019-02-15
CURRENT
ARP1786C
This SAE Aerospace Recommended Practice (ARP) is to provide a recommended minimum laboratory roll performance for main landing gear aircraft wheels without tires installed and applies to both bolted and lock-ring wheel designs for FAA Part 25 and military aircraft main wheels (not required for any nose wheels or main wheels on FAA Part 23, 27 or 29 applications).
Standard

WHEEL ROLL ON RIM CRITERIA FOR AIRCRAFT APPLICATION

1994-06-01
HISTORICAL
ARP1786
This document sets forth minimum roll performance capability for main landing gear wheel to be rolled without tire. The recommended test requirements establish a laboratory demonstration level to equate satisfactory experience on aircraft.
Standard

Brake Systems, Wheel, Military Aircraft

2008-10-20
HISTORICAL
AS8584A
This SAE Aerospace Standard (AS) defines the requirements for brake systems used on military aircraft equipped with wheel-type landing gears.
Standard

Brake Systems, Wheel, Military Aircraft

2013-11-01
CURRENT
AS8584B
This SAE Aerospace Standard (AS) defines the requirements for brake systems used on military aircraft equipped with wheel-type landing gears.
Standard

Carbon Brake Contamination and Oxidation

2016-04-12
CURRENT
AIR5490A
This document provides information on contamination and its effects on brakes having carbon-carbon composite friction materials (carbon). Carbon is hygroscopic and porous, and therefore readily absorbs liquids and contaminants. Some of the contaminants can impact intended performance of the brake. This document is intended to raise awareness of the effects of carbon brake contamination and provide information on industry practices for its prevention. Although not addressed in this report, contaminants can cause problems with other landing system components including tires.
Standard

Carbon Brake Contamination

2012-05-09
HISTORICAL
AIR5490
This document provides information on contamination and its effects on brakes having carbon-carbon composite friction materials (carbon). Carbon is hygroscopic and porous, and therefore readily absorbs liquids and contaminants. Some of the contaminants can impact intended performance of the brake. This document is intended to raise awareness of the effects of carbon brake contamination and provide recommendations for its prevention. Although not addressed in this report, contaminants can cause problems with other landing system components including tires.
Standard

Compilation of Freezing Brake Experience and Potential Designs and Operating Procedures to Prevent Its Occurrence

2016-05-24
CURRENT
AIR4762A
This Aerospace Information Report (AIR) describes conditions under which freezing (frozen) brakes can occur and describes operating procedures which have been used to prevent or lessen the severity or probability of brake freezing. This document also identifies design features that some manufacturers implement to minimize the occurrence of freezing brakes. This document is not an Aerospace Recommended Practice (ARP) and therefore does not make recommendations based on a consensus of the industry. However, part of this document’s purpose is to describe the design and operational practices that some are using to minimize the risk of frozen brakes. NOTE: The following information is based upon experience gained across a wide-range of aircraft types and operational profiles, and should NOT take precedence over Aircraft Flight Manual or Flight Operations Procedures.
Standard

Use of Structural Carbon Heat Sink Brakes on Aircraft

2016-11-15
CURRENT
AIR1934A
The purpose of this document is to relate areas where carbon brake technology may differ from traditional steel brake technology in design and performance. Carbon brakes have been used on military aircraft for many years and are now frequently used on newly commercial developed aircraft. This document presents some of the lessons learned.
Standard

Information on Parking Brake Systems

2020-09-16
CURRENT
AIR6441
This SAE Aerospace Information Report (AIR) provides information on the parking brake system design for a variety of aircraft including part 23, 25, 27, and 29. The document includes a discussion of key technical issues with parking brakes. This document does NOT provide recommended practices for parking brake system design.
Standard

Minimum Performance Requirements for Transport Airplane Wheel and Brake Assemblies Using Electric Power Actuation

2012-07-11
CURRENT
AS5663A
In lieu of TSO-C135, this SAE Aerospace Standard (AS) prescribes the minimum performance standards for wheels, brakes, and wheel and brake assemblies using electric power actuation for transport category (14 CFR Part 25) airplanes. Testing is limited to that necessary to establish minimum performance related to strength, robustness, stopping capability, and energy absorption to ensure measurable, repeatable industry accepted standards for these aspects of wheel and brake performance. The test parameters associated with electric braking actuation are defined around the state of the technology at this time, typically comprised of an Electro-Mechanical Actuator (EMA) controlled by a control system delivering electric power and effecting motor control.
Standard

Minimum Performance Requirements for Transport Airplane Wheel and Brake Assemblies Using Electric Power Actuation

2012-05-09
HISTORICAL
AS5663
In lieu of TSO-C135, this SAE Aerospace Standard (AS) prescribes the minimum performance standards for wheels, brakes, and wheel and brake assemblies using electric power actuation for transport category (14 CFR Part 25) airplanes. Testing is limited to that necessary to establish minimum performance related to strength, robustness, stopping capability, and energy absorption to ensure measurable, repeatable industry accepted standards for these aspects of wheel and brake performance. The test parameters associated with electric braking actuation are defined around the state of the technology at this time, typically comprised of an Electro-Mechanical Actuator (EMA) controlled by a control system delivering electric power and effecting motor control.
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