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SAE International Journal of Aerospace

  • Journal
  • V129-1EJ
To be published on 2020-05-29 by SAE International in United States
No Abstract Available.
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AMS Index - January 2020

  • Index
  • AMSJAN-2020
To be published on 2020-02-20 by SAE International in United States
No Abstract Available.
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Unsettled Technology Domains in Aerospace Additive Manufacturing Concerning Safety, Airworthiness, and Certification

Muelaner Engineering, Ltd.-Jody Muelaner
  • Research Report
  • EPR2019008
To be published on 2019-12-20 by SAE International in United States
Additive manufacturing (AM) is currently being used to produce many certified aerospace components. However, significant advantages of AM are not exploited due to unresolved issues associated with process control, feedstock materials, surface finish, inspection, and cost. Components subject to fatigue must undergo surface finish improvements to enable inspection. This adds cost and limits the use of topology optimization. Continued development of process models is also required to enable optimization and understand the potential for defects in thin walled and slender sections. Costs are high for powder-fed processes due to material costs, machine costs, and low deposition rates. Cost for wire-fed processes are high due to the extensive post-process machining required. In addition, these processes are limited to low-complexity features. Incremental improvements in all of these areas are being made but a step change could potentially be achieved by hybrid processes, which use wire feedstock to deposit the bulk of the part and powder for fine detail. NOTE: SAE EDGE™ Research Reports are intended to identify and illuminate key issues in emerging, but still unsettled, technologies…
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Unsettled Domains Concerning Electric Propulsion Technology for Commercial Aircraft

drR2 Consulting-Ravi Rajamani
  • Research Report
  • EPR2019006
To be published on 2019-12-13 by SAE International in United States
According to some, electric propulsion is already on its way down the “trough of disillusionment.” This report argues that while there are some concerns with associated technologies, such pessimism is unwarranted. Yes, battery systems can be more energy dense; charging standards are late in being developed; it is not clear what technologies and architectures will win out for which sectors; we still have to figure out how to deal with thermal management issues at all levels in future designs; and what might be the certification standards for electric aircraft. But that does not mean that these issues will not be solved. Yes, these unsettled questions may take a little longer to solve than originally estimated, but there is full expectation within the industry that electric propulsion for commercial aircraft will succeed. In this SAE EDGE Research Report we present points of view from leading researchers in the industry who are thinking deeply about solving these problems. NOTE: SAE EDGE™ Research Reports are intended to identify and illuminate key issues in emerging, but still unsettled, technologies…
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CRIMPING TOOL, TYPE 2, TERMINAL, HAND, WIRE TERMINATION FOR SIZE 16 SHIELDED CONTACTS (OUTER CONTACT)

AE-8C2 Terminating Devices and Tooling Committee
  • Aerospace Standard
  • AS22520/19A
  • Current
Published 2019-12-09 by SAE International in United States

Scope is unavailable.

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Predicting Photometric Degradation of Exterior Aircraft Lights

A-20B Exterior Lighting Committee
  • Aerospace Standard
  • ARP6621
  • Current
Published 2019-12-09 by SAE International in United States

This Aerospace Recommended Practice provides guidance for designers and specifiers of aircraft exterior lighting. Typical causes of light degradation and methods of predicting performance degradation in the aircraft environment are given. Although the document considers only exterior lighting, many of the principles and methods discussed apply to interior or flight deck lighting as well.

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CRIMPING TOOL, TYPE 2, TERMINAL, HAND, WIRE TERMINATION FOR SIZE 12 SHIELDED CONTACTS (OUTER CONTACT)

AE-8C2 Terminating Devices and Tooling Committee
  • Aerospace Standard
  • AS22520/21A
  • Current
Published 2019-12-09 by SAE International in United States

Scope is unavailable.

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Aircraft Fuel System Design Guidelines

AE-5A Aerospace Fuel, Inerting and Lubrication Sys Committee
  • Aerospace Standard
  • AIR7975
  • Current
Published 2019-12-05 by SAE International in United States

This document describes the major design drivers and considerations when designing a fuel system for a large commercial aircraft. It discusses the design at a system/aircraft level, and is not intended as a design manual for individual system components, though it does refer out to other SAE specifications where more detail on specific components and sub systems is given. It does include examples of a number of calculations associated with sizing of fuel systems, based on those given in NAV-AIR-06-5-504, as well as an appendix summarizing basic fluid mechanical equations which are key for fuel system design. It is acknowledged that most of these calculations would today be performed by modelling tools, rather than by hand, but it is considered important for the designer to understand the principles.

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CRIMPING TOOL, TYPE 2, TERMINAL, HAND, WIRE TERMINATION FOR SIZE 12 SHIELDED CONTACTS (SHIELD CRIMP SLEEVE)

AE-8C2 Terminating Devices and Tooling Committee
  • Aerospace Standard
  • AS22520/22A
  • Current
Published 2019-12-05 by SAE International in United States

Scope is unavailable.

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Wire, Electrical, Polyvinyl Chloride Insulated, Nylon Jacket, Tin-Coated Copper Conductor, Medium Weight, 600-Volt, 105 °C

AE-8D Wire and Cable Committee
  • Aerospace Standard
  • AS50861/7A
  • Current
Published 2019-12-05 by SAE International in United States

Scope is unavailable.