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This specification covers an aluminum-lithium alloy in the form of plate 0.500 to 6.500 inch (12.70 to 165.10 mm) inclusive, in thickness (see 8.5).

Four of these technologies – smart coatings for corrosion detection and protection, aluminum alloys for high temperature applications, particle contamination mitigation technologies, and thermal and environmental barrier coating systems – are among NASA’s most in-demand technologies and have been applied to mainstream engineering projects.

Abstract The response time of the air braking system is the main parameter affecting the longitudinal braking distance of vehicles. In this article, in order to predict and control the response time of the braking system of semitrailers, an AMESim model of the semitrailer braking system involving the relay emergency valve (REV) and chambers was established on the basis of analyzing systematically the working characteristics of the braking system in different braking stages: feedback braking, relay braking, and emergency braking. A semitrailer braking test bench including the brake test circuit and data acquisition system was built to verify the model with typical maneuver. For further evaluating the semitrailer braking response time, an experiment under different control pressures was carried out. Experimental results revealed the necessity of controlling the response time.

Abstract The need for high efficiency automotive engines has led to more complex air handling and fuel injection systems, higher compression ratios, more advanced combustion and aftertreatment systems, and the use of fuels with higher octane ratings. Higher octane fuels have a lower propensity to knock. This work studies the influence of changing fuel octane rating on two modern production gasoline vehicles, one with a naturally aspirated, port injected engine and the other with a turbocharged, direct injected engine, using fuels with four different octane number grades (with 85, 87, 91, and 93 anti-knock indices) and operated over a variety of driving cycles and temperature conditions. Unlike previous studies, this effort develops and demonstrates a methodology that isolates fuel effects on fuel consumption and provides a clear view of the octane impact on existing vehicles.

This SAE Standard covers normalized electric-resistance welded flash-controlled single-wall, low-carbon steel pressure tubing intended for use as pressure lines and in other applications requiring tubing of a quality suitable for bending, double flaring, beading, forming, and brazing. Material produced to this specification is not intended to be used for single flare applications, due to the potential leak path caused by the Inside Diameter (ID) weld bead or scarfed region. Assumption of risks when using this material for single flare applications shall be defined by agreement between the producer and purchaser. This specification also covers SAE J356 Type-A tubing. The mechanical properties and performance requirements of SAE J356 and SAE J356 Type-A are the same. The SAE J356 or SAE J356 Type-A designation define unique manufacturing differences between coiled and straight material.

This SAE Standard and its supplementary detail specifications cover the engineering requirements for the controlled shot peening of a medical device where shot peening is required for enhancement of a material's mechanical properties through the intentional creation of compressive residual stress.

This document establishes the minimum requirements for ground based aircraft deicing/anti-icing methods and procedures to ensure the safe operation of aircraft during icing conditions on the ground. This document does not specify the requirements for particular aircraft models. The application of the procedures specified in this document are intended to effectively remove and/or prevent the accumulation of frost, snow, slush, or ice contamination which can seriously affect the aerodynamic performance and/or the controllability of an aircraft. The principal method of treatment employed is the use of fluids qualified to AMS1424 (Type I fluid) and AMS1428 (Type II, III, and IV fluids). All guidelines referred to herein are applicable only in conjunction with the applicable documents. Due to aerodynamic and other concerns, the application of deicing/anti-icing fluids shall be carried out in compliance with engine and aircraft manufacturer's recommendations.

As outlined in the contract, Aitech Defense will supply an advanced, customized remote input/output (I/O) interface controller based on the company’s commercial-off-the-shelf (COTS) modular, dual-core Ai-RIO remote interface.

Rearview cameras for CVs edge closer to regulatory approval

Bioprivacy: designing for a moving target

Rolls-Royce holds that hands-on, practical training will always be the main focus for maintainers; however, VR technology will help bolster training activities especially with the amount of new aircraft that will be needed to accommodate the additional air passengers (which is expected to almost double by 2036).

This SAE Information Report lists engine and laboratory tests for service fill engine oils which are associated with specifications and classifications established outside of SAE J304 and SAE J183. These specifications and classifications include those developed prior to April 1, 2017, by international technical societies, as well as individual original equipment manufacturers. The information contained within this report applies to engine oils utilized in gasoline- and diesel-powered automotive vehicles.

On-Board Diagnostic (OBD) regulations require passenger cars, and light and medium duty trucks, to support communication of a minimum set of diagnostic information to off-board “generic” test equipment. This document specifies the diagnostic data which may be required to be supported by motor vehicles and external test equipment for diagnostic purposes which pertain to motor vehicle emission-related data. SAE J1979 was originally developed to meet U.S. OBD requirements for 1996 and later model year vehicles. ISO 15031 5 was based on SAE J1979 and was intended to combine the U.S. requirements with European OBD requirements for 2000 and later model year vehicles.

The prototype project, named E-HAV1, will undergo ground testing and will be optimized for manufacturing as a directly application for future Airlander 10 airships – replacing the fuel-burning forward engines as the first step towards an all-electric variant.

JPL transferred the license to Apollo after the company was awarded a contract to produce three engineering model MaSMi-EM thrusters for JPL’s Ascendant Sub-kW Transcelestial Electric Propulsion System (ASTRAEUS). Apollo will deliver the three MaSMi-EM thrusters to JPL this summer.

This specification covers an aluminum alloy in the form of plate.