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Ground Support Equipment Hydraulic Systems, Design and Installation, Recommended Practices for

2022-12-16
CURRENT
ARP4943A
This SAE Aerospace Recommended Practice (ARP) covers the design and installation requirements for hydraulic systems (up to 8000 psig [56 MPa]) for ground support equipment (GSE). This ARP is derived from AS5440, which provides hydraulic system requirements for aircraft. The recommendations herein are primarily intended for GSE that exchange hydraulic fluid with the aircraft, such as hydraulic service carts, rather than GSE with non-interfacing hydraulic systems. The GSE may be mobile, portable, or stationary.
Standard

Nose Gear Towbarless Tow Vehicle Basic Test Requirements

2022-09-30
CURRENT
ARP5283B
The purpose of this specification is to provide airplane operators and tow vehicle manufacturers with: a General design and operating requirements pertinent to test and evaluation of towbarless tow vehicles. Specific design requirements are provided in ARP4852 and ARP4853. b Test and evaluation requirements. The results of these test evaluations will determine if the loads induced by the tow vehicle will exceed the design loads of the nose gear, or are within the aircraft manufacturer’s limits so that they do not affect the certified safe limit of the nose gear. The results of these test evaluations will also determine if a stability problem may occur during pushback and/or maintenance towing operations with the tested airplane/tow vehicle combination. This document specifies general test requirements and a test evaluation procedure for towbarless tow vehicles (TLTV) intended for pushback and maintenance towing only.
Standard

Aircraft Damage Caused by Ground Support Equipment

2022-05-16
CURRENT
AIR1589C
Incidents where a piece of ground support equipment or personnel damages an aircraft under the control of ground or maintenance operations that requires corrective action by aircraft maintenance personnel. Operations include, but are not limited to servicing, line maintenance, heavy maintenance, and aircraft movement, e.g., marshalling/pushback/tow/reposition/taxi.
Standard

Regional Aircraft Towbarless Tow Vehicle - Test Requirements

2022-03-30
CURRENT
ARP5911A
The present Aerospace Recommended Practice specifies for airplane operator and tow vehicle manufacturers the basic testing requirements for towbarless tow vehicles to be used on the nose gear of conventional tricycle type landing gears of commercial civil transport aircraft with maximum ramp weight between 8600 kg (19 000 lb) and 50 000 kg (110 000 lb), commonly designated as “regional aircraft”. Its purpose is to achieve testing results, or equivalent computer modeling, demonstrating that the loads induced by the tow vehicle will not exceed the design loads of the airplane’s nose landing gear and associated structure, reduce the certified safe life limit of the nose landing gear, or otherwise compromise the airplane’s structural integrity and airworthiness certification.
Standard

Electric Baggage/Cargo Tractor

2022-03-28
CURRENT
ARP1804B
This SAE Aerospace Recommended Practice (ARP) outlines the design and performance requirements for a battery-powered electric tow tractor for the handling of baggage or cargo trailers in airline service. The use of “shall” in this document indicates a mandatory requirement. The use of “should” indicates a recommendation or that which is advised but not required.
Standard

Aircraft Ground Service Connections Locations and Type

2021-09-30
CURRENT
ARP4084B
The purpose of this SAE Aerospace Recommended Practice (ARP) is to standardize locations of aircraft ground service connections to accommodate the trend toward fixed systems, which use the passenger boarding bridge and/or underground “pop-up” or pit systems as a source of utilities. It must be recognized that, in standardizing the locations of the aircraft service connections, they must continue to be served efficiently in those instances where mobile ground support equipment is used. There is an ever increasing number of fixed installations for aircraft servicing. The objectives to be met by standardizing the locations of the aircraft service connections are the following:
Standard

Pallet/Container Loader Auto-Levelling Systems

2021-09-30
CURRENT
ARP4776
The data in this document is, at this stage, primarily concerned with the interface of pallet/container loaders and lower-deck compartments of standard and wide-body aircraft although the principles illustrated may be applied to the main-decks of narrow and wide-body aircraft. NOTE: For the purpose of this document, in accordance with Part 3 of the Directives for the technical work of ISO and with accepted IATA practice, minimum essential criteria defined by the word "shall" are absolute requirements. Recommended criteria identified by the word "should", while considered important, are not mandatory.
Standard

Aircraft Maintenance Jacks - General Requirements

2021-09-30
CURRENT
AS4775B
This document covers the general requirements for hydraulic aircraft jacks. It can be applied to tripod, unipod, and axle jacks that may be used on open ramp areas as well as in the aircraft hangar. Throughout this Aerospace Standard, the minimum essential criteria are identified by the key word “shall”. Recommended criteria are identified by use of the key word “should”. Deviation from recommended criteria should only occur after careful consideration and thorough service evaluation have shown alternate methods to provide an equivalent level of safety. The term “vertical load” throughout this Aerospace Standard is defined as the force imposed on the aircraft jack at the airframe jack point.
Standard

Method of Testing Pre-Conditioned Air Equipment

2021-04-08
CURRENT
ARP5374B
This SAE Aerospace Recommended Practice (ARP) applies to Point-Of-Use, Central and Mobile Pre-Conditioned Air Equipment. It does not apply to aircraft mounted equipment.
Standard

Aircraft Tow Bar

2021-04-08
CURRENT
ARP1915E
This SAE Aerospace Recommended Practice (ARP) specifies dimensional and physical requirements of tow bar connections to tractor and aircraft (see Figure 1). It is applicable to all types of commercial transport category aircraft tow bar. The purpose of this SAE Aerospace Recommended Practice (ARP) is to standardize tow bar attachments to airplane and tractor according to the mass category of the towed aircraft, so that one tow bar head with different shear levels can be used for all aircraft that are within the same mass category and are manufactured in compliance with AS1614 or ISO 8267.
Standard

Wheel Chocks

2021-04-08
CURRENT
AIR4905A
The purpose of this document is to present general considerations for the design and use of aircraft wheel chocks. The design and use of aircraft wheel chocks is a good deal more complicated than it may appear at first glance.
Standard

Airport Electrical Power System Harmonics

2020-09-23
CURRENT
AIR5387
This SAE Aerospace Information Report (AIR) is intended to cover all airport 50 or 60 Hz electrical systems as well as all electrical utilization equipment that is attached to those systems.
Standard

Method of Evaluating Pneumatic Ground Power Units

2020-09-23
CURRENT
AIR4545A
This SAE Aerospace Information Report (AIR) covers, and is restricted to, the behavior of air under conditions of critical and subcritical flow at temperatures less than 500 °F.
Standard

Fuels in Ground Support Equipment (Other Than Gasoline or Diesel)

2020-09-23
CURRENT
AIR5373A
This SAE Aerospace Information Report (AIR) is intended as a source of comparative information and is subject to change to keep pace with experience and technical advances. This document describes currently used fuels and fuels which may be used in the future. Conventional gasoline and diesel fuels are intentionally omitted from this document.
Standard

Ground Equipment Rebuild Program

2020-09-23
CURRENT
AIR1599A
This Aerospace Information Report (AIR) is intended to be concerned with fleet programs rather than programs for individual units. Technical and administrative considerations in developing an approach to a program will be suggested. Organization of material possibly wanted in the form of a detailed specification for airline rebuilder communication is reviewed.
Standard

Four Wheel Drive Aircraft Tow Tractors - Factors for Design Consideration

2020-09-23
CURRENT
AIR1363A
This Aerospace Information Report (AIR) is presented in two parts. The first part is simply a summarization of design factors that must be considered in establishing vehicle specifications and design characteristics. The second part refers particularly to the performance characteristics of an aircraft tow tractor. Some definitions, formulas, data, and an example are provided mainly for assisting the specifying engineers of potential buyers and users of aircraft tow tractors in the evaluation and comparison of their requirements with the performance capabilities of the various tow tractors offered by the tow tractor manufacturers. Although the design engineers could also use the formulas and data in their calculations of the performance specifications of aircraft tow tractors, this AIR is not intended to provide the methods and all data necessary for detailed calculations and design of an aircraft tow tractor.
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