Results
This SAE Aerospace Recommended Practice (ARP) recommends a methodology to be used for the design, analysis and test evaluation of modern helicopter gas turbine propulsion system stability and transient response characteristics. This methodology utilizes the computational power of modern digital computers to more thoroughly analyze, simulate and bench-test the helicopter engine/rotor system speed control loop over the flight envelope. This up-front work results in significantly less effort expended during flight test and delivers a more effective system into service. The methodology presented herein is recommended for modern digital electronic propulsion control systems and also for traditional analog and hydromechanical systems.
This paper describes a recommended practice and procedure for the correlation of test cells that are used for the performance testing of APU (auxiliary power unit) engines. Test cell correlation is performed to determine the effect of any given test cell enclosure and equipment on the performance of an engine relative to the baseline performance of that engine. The baseline performance is generally determined at the original equipment manufacturer (OEM) designated test facility. Although no original equipment manufacturer (OEM) documents are actually referenced, the experience and knowledge of several OEMs contributed to the development of this document. Each engine Manufacturer has their own practices relating to correlation and they will be used by those OEMs for the purpose of establishing certified test facilities.
This specification covers a nitrile (NBR) rubber in the form of sheet, strip, tubing, extrusions, and molded shapes.
The purpose of this document is to provide minimum requirements for weld filler materials, workmanship, inspection and record requirements for fusion welding of alloys applicable to aircraft, missiles, other aerospace equipment, their parts and accessories.
This specification covers silicone (VMQ) rubber sheet reinforced with glass cloth.
This specification covers the requirements for three types and three classes of mechanically deposited cadmium, tin-cadmium or zinc coatings on metallic surfaces by impacting (peen plating).
This procurement specification covers tubular, blind rivets fabricated from a corrosion resistant nickel-copper alloy of the type identified under the Unified Numbering System as UNS N04405, and of 52 ksi minimum shear strength for self-plugging style rivets.
This specification covers a corrosion and heat-resistant nickel alloy in the form of investment castings.
This specification covers a silicone resin in the form of a two-component liquid.
This specification covers a silicone, electrically conductive and corrosion-inhibiting sealing compound.
This specification covers cored and uncored open cell latex foam rubber sheets, molded and hand- built shapes having good shock-absorbing, vibration-damping, and comfort cushioning characteristics (see 6.1).
This specification covers a silicone rubber in the form of a two-component liquid compound.
This specification covers an aluminum alloy in the form of die forgings, hand forgings, and forging stock.
This specification covers an aluminum alloy powder metallurgy product in the form of sheet 0.010 to 0.250 inch (0.25 to 6.35 mm) in nominal thickness.
This specification covers a low-alloy steel in the form of welding wire.
This specification covers an aluminum alloy in the form of sheet clad on both sides with a different aluminum alloy.
This specification covers the requirements for filled, resinous thermosetting compound and sheet pre-preg to fabricate shims for use during assembly of aircraft and marine components and parts.
This specification covers the general requirements for aluminum and aluminum alloy bar, rod, wire, or special shapes; rolled, drawn, or cold finished. Specific requirements for these products are covered by the applicable detail specification (See 6.3).
This document describes a physical layer utilizing Unshielded Twisted Pair (UTP) cable with extended stub lengths for flexibility in ECU placement and network topology. Also, connectors are not specified. CAN controllers used on SAE J1939-15 networks must be restricted to use only Classical Frames as defined in ISO 11898- 1. A network which may have legacy controllers cannot tolerate FD Frames. These SAE Recommended Practices are intended for light- and heavy-duty vehicles on- or off-road as well as appropriate stationary applications which use vehicle derived components (e.g., generator sets). Vehicles of interest include, but are not limited to: on- and off-highway trucks and their trailers; construction equipment; and agricultural equipment and implements.
This SAE Recommended Practice describes a laboratory test procedure for measuring the thickness of various resilient insulating padding materials that are used in the automotive industry. Such padding materials may include synthetic or non-synthetic materials, fibrous or cellular materials, high loft or compressed materials, single layer homogeneous or multilayer products, low and high surface density products. Some of these samples may be deformable and elastic, high loft thermal and acoustical fibrous materials, as well. The test method described herein has been developed to establish a means of a uniform procedure for measuring the thickness of different types of samples not only for application to all ground vehicles, but also may be applicable to other situations or conditions. The test method is designed to measure the thickness of flat samples and not formed parts. This test method does not purport to address all of the safety concerns, if any, associated with its use. It is the
SAE J515 covers the specification for hydraulic O-ring material and properties and sizes applicable to face seal fittings, metric and inch stud ends, and four-bolt flange fittings. The standard includes a size code to allow industry and government agencies to order O-rings with a coded part number.
The requirements established in this document are applicable to the IAQG and associated sectors for managing oversight to established requirements contained in 9104-series standards (i.e., 9104/1, 9104/2, 9104/3). The requirements are applicable to IAQG working groups for oversight. NOTE: All required forms are depicted in Appendix A. These form exhibits are provided for reference only; the current versions of these forms are available on the IAQG website.
This SAE Recommended Practice provides uniform laboratory procedures for biaxial fatigue testing of wheels intended for normal highway use and temporary use on passenger car vehicles and light trucks and minimum cycle requirement for ferrous wheels for ballasted passenger car applications. The appendices provide scalable load files that are applicable to ballasted passenger cars and ballasted light trucks. A load file for unballasted passenger cars will be added to this document.
This specification covers an aircraft-quality, low-alloy steel in the form of seamless tubing.
This specification covers the requirements for electrodeposited tin-lead plating intended for use as a coating for corrosion protection and as a base for soldering.
This specification covers a corrosion and heat resistant work strengthened nickel alloy in the form of bars and wire, 1½ inches (38 mm) and under in nominal diameter (See 8.2).
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