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Standard

Optical equipment safety in fuel tanks

2018-11-15
WIP
ARP7977
This project aims to develop a framework of requirements which support safe installation and operation of optical devices within an aircraft fuel tank, specifically: 1: To determine optical power and energy limits which ensure safe operation of optical installations within an aircraft fuel tank over aircraft life and under all phases of flight, taking the limits provided in IEC 60079-28:20015 as a starting point. 2: To demonstrate optical and electrical power and energy equivalences, where possible. 3: To determine requirements for optical installations, including bonding and electrostatic discharge for non-conductive components such as optical fibres. 4: To provide guidelines for analysis of the hazards presented by the typical internal components of optical devices, such as failure modes of photo diodes and cells.
Standard

Surface Preparation and Priming of Aluminum Alloy Parts for High Durability Structural Adhesive Bonding

2018-11-15
WIP
ARP1524B
This Aerospace Recommended Practice (ARP) describes the processing system and techniques for the surface preparation and priming of aluminum alloy parts for structural adhesive bonding to achieve optimum bondline durability, corrosion resistance, and manufacturing producibility. While this surface preparation has been developed and validated for two high strength aluminum alloys, 2024 and 7075, in the hardened condition it is expected to be applicable to other alloys and tempers. This surface preparation system has been validated for use with 180 degrees F (82 degrees C) and with 250 degrees F (121 degrees C) curing elastomer-modified epoxy adhesive and corrosion-inhibiting primer. The processes described herein are the result of laboratory evaluation of structural and durability performance.
Standard

Specification Definitions - Hydraulic Backhoes

2018-11-14
CURRENT
J49_201811
This standard applies to hydraulic backhoes which have no more than 190 degrees of rotational swing and are mounted on wheeled tractors and crawler tractors.
Standard

Brake System Test Procedure - Snowmobiles

2018-11-14
CURRENT
J45_201811
This SAE Recommended Practice establishes a uniform procedure for the level surface testing of hand-operated brake systems on recreational noncompetitive snowmobiles.
Standard

Dynamic Cushioning Performance Criteria for Snowmobile Seats

2018-11-14
CURRENT
J89_201811
This SAE Recommended Practice encompasses the significant factors which determine the effectiveness of a seat system in limiting spinal injury during vertical impacts between the rider and the snowmobile seat system. The document is intended to provide a tool for the development of safer snowmobile seats. It is recognized that the seat is only a portion of the entire vehicle protective suspension system. It is, however, usually required that the seat serve as added protection to the suspension system, since the latter may "bottom out" during a severe impact. The term "seat" refers to the occupant-supporting system not normally considered part of the vehicle suspension or frame system. In some cases, it may include more than the foam cushion.
Standard

Sign Convention for Vehicle Crash Testing

2018-11-14
CURRENT
J1733_201811
In order to compare test results obtained from different crash test facilities, standardized coordinate systems need to be defined for crash test dummies, vehicle structures, and laboratory fixtures. In addition, recorded polarities for various transducer outputs need to be defined relative to positive directions of the appropriate coordinate systems. This SAE Information Report describes the standardized sign convention and recorded output polarities for various transducers used in crash testing.
Standard

Nickel Alloy, Corrosion and Heat Resistant, Sheet, Strip, and Foil 52.5Ni - 19Cr - 3.0Mo - 5.0Cb - 0.90Ti - 0.50Al - 18Fe, Consumable Electrode or Vacuum Induction Melted Precision Cold Rolled, Solution Heat Treated

2018-11-12
WIP
AMS5914B
This specification covers a corrosion and heat resistant nickel alloy in the form of sheet, strip, and foil up to 0.015 inch in nominal thickness.

MAM 5914 is the metric version of this AMS.

These products have been used typically for the fabrication of bellows, diaphragms, and other components requiring a combination of high strength, resistance to heat and corrosion, leak tightness, and maximum fatigue life, but usage is not limited to such applications.

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