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Standard

Clamp Selection and Installation Guide

1990-02-21
CURRENT
ARP1897
This document is prepared as an aid in the selection of clamping devices and their use in aerospace equipment for the installation and support of tubing and wiring.
Standard

MEASUREMENT OF FAR FIELD NOISE FROM GAS TURBINE ENGINES DURING STATIC OPERATION

1990-02-19
HISTORICAL
ARP1846
Recommendations presented in this document are intended primarily for the acquisition of far-field acoustical data. The test engine is to be appropriately configured and operated so that the acoustical signals generated are consistent with the specific objectives of the test. The principal output of the data reduction system is one-third octave band sound pressure levels. However, broader or narrower bandwidth analysis of the recorded data may also be accomplished when appropriate. Although not specifically intended to apply to special purpose engine noise testing (for example, tests involving unique instrumentation or procedures to identify specific noise sources), some of the practices described herein may be appropriate for such testing. Specification of reference conditions is outside the scope of this document although procedures to adjust data to a reference condition are described in 7.2.4.
Standard

Aerothermodynamic Test Instrumentation and Measurement

1990-02-01
HISTORICAL
AIR1168/5
Like the technologies to which it contributes, the science of instrumentation seems to be expanding to unlimited proportions. In considering instrumentation techniques, primary emphasis was given in this section to the fundamentals of pressure, temperature, and flow measurement. Accent was placed on common measurement methods, such as manometers, thermocouples, and head meters, rather than on difficult and specialized techniques. Icing, humidity, velocity, and other special measurements were touched on briefly. Many of the references cited were survey articles or texts containing excellent bibliographies to assist a more detailed study where required.
Standard

Hydraulic Excavator and Backhoe Digging Forces

1990-02-01
HISTORICAL
J1179_199002
This document is to provide a uniform method of determining digging forces for hydraulic excavators and backhoes. This document applies to all hydraulic excavators and backhoes that are either crawler mounted or rubber tire mounted, with or without outrigger members, identified in SAE J1116 as earthmoving machines and defined in SAE J1057.
Standard

PNEUMATIC GROUND POWER SUPPLIES FOR STARTING AIRCRAFT

1990-02-01
HISTORICAL
AIR944B
The material contained in this report has been simplified to facilitate its use. Specific manufacturers should be contacted for more detailed information. Many of the basic power supplies are available in numerous configurations and some provide shaft power or electrical power in addition to the pneumatic capability. Vehicles for the ground transportation of the power supplies are also varied to fit specific requirements.
Standard

Recommended Remanufacturing Procedures for Manual Transmission Clutch Assemblies

1990-02-01
HISTORICAL
J1915_199002
This SAE Recommended Practice is prepared as a guideline to improve and maintain the quality of remanufactured automotive products. Installation of remanufactured or rebuilt products is often an economical way to repair a vehicle even though they may not fully be equivalent to original equipment parts. Before processing any part, a remanufacturer should determine if the original design and present condition of the core are suitable for remanufacturing, so as to provide durable operation of the part as well as acceptable performance when installed in a vehicle. The remanufacturer should also carefully consider the safety aspects of the product and any recommendations of the original manufacturer related to remanufacturing or rebuilding their product.
Standard

Computerization of Reliability, Maintainability and Supportability (Rm&S) in Design

1990-01-31
HISTORICAL
AIR4276
This Aerospace Information Report (AIR) is the primary vehicle for providing the survey results to industry and government. The Institute of Defense Analysis (IDA), has performed a study which concludes that computerized techniques must be developed to integrate RM&S into product design in order to permit design influence from inception throughout the product life cycle. This AIR addresses the DoD initiative for developing Computer Aided Acquisition and Logistic Support (CALS) and industry's role in its evolution. AIR 4276 provides the detailed results of an industry/government survey inquiring into the extent of computerization of RM&S into the design process. Background information describes the evolution of the survey and why it was developed.
Standard

Screw Threads - MJ Profile, Metric

1990-01-31
CURRENT
MA1370
This standard specifies the characteristics of the MJ profile metric series of screw threads, altered from ISO 68 M Profile, to include a mandatory controlled radius of 0.18042P to 0.15011P at the root of the external thread and with the minor diameter of both external and internal threads increased to provide a basic thread height of 0.5625H in order to accommodate the external thread maximum root radius.
Standard

LAVATORY SMOKE DETECTORS

1990-01-18
HISTORICAL
ARP4001
This ARP is to describe key features for the lavatory smoke detector. Consideration has been given to existing requirements of the FAA, to recommendations of aircraft operators and manufacturers. The ARP is deliberately not specific in all areas in order to maximize potential supplier's freedom to use the state-of-the-art design and manufacturing technologies. Safe, reliable, and effective lavatory smoke detectors remain the primary goal of the ARP.
Standard

Hi-Head Finished Hex Bolts

1990-01-02
CURRENT
J871_199001
This SAE Standard specifies the general and dimensional requirements for hi-head hex cap screws (formerly "finished hex bolts"). Hi-head hex cap screws are intended primarily for use in the heavy construction and industrial equipment industry. The increase in head heights over those of hex cap screws assures good wrenchability where frequent servicing is necessary, where high torquing is a requirement, or where wear on the screw head is a problem.
Standard

Aluminum Alloy Tempers

1990-01-01
HISTORICAL
AS1990
The purpose of this SAE Aerospace Standard (AS) is to provide a description of the temper nomenclature system for aluminum alloys used in the aerospace industry by combining information from different sources for the benefit of the user.
Standard

Internal Combustion Engines--Piston Rings--Inspection Measuring Principles

1990-01-01
HISTORICAL
J1589_199001
Differences, where they exist, are shown in Appendix A. This SAE Standard defines the measuring principles to be used for measuring piston rings. It applies to piston rings up to and including 200 mm diameter for reciprocating combustion engines. These inspection measuring principles may also be used for piston rings for compressors working under analogous conditions.
Standard

Procedure for Mapping Engine Performance-Spark Ignition and Compression Ignition Engines

1990-01-01
HISTORICAL
J1312_199001
The purpose of this SAE code is to provide a standardized test procedure for generating engine performance maps. An engine performance map is a listing of engine fuel flow rates versus torque or power obtained at specific engine speeds and loads. Engine performance maps as specified by this code can be used in fuel economy simulation programs. This document is applicable to both four-stroke spark ignition (SI) and compression ignition (CI) engines, naturally aspirated and pressure charged, with or without charge air cooling.
Standard

Hex Bolts

1990-01-01
CURRENT
J105_199001
Included herein are complete general and dimensional data for the various types of square and hex bolts recognized as SAE Standard and commonly used in automotive and other ground based motor vehicles and industrial equipment. Also included are appendixes covering wrench openings for bolts and thread runout sleeve gages. The inclusion of dimensional data in this standard is not intended to imply that all of the products described are stock production sizes. Users are requested to consult with manufacturers concerning lists of stock production sizes.
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