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Crew Station Lighting - Commercial Aircraft

A-20A Crew Station Lighting
  • Aerospace Standard
  • ARP1161B
  • Current
Published 2019-10-18 by SAE International in United States

This SAE Aerospace Recommended Practice covers the recommended requirements for the lighting and characteristics of instruments; information plates and displays, emergency, cautionary, advisory and status displays; circuit breaker and toggle switch positions; and the recommended requirements for the utility lighting system.

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Minimum Operational and Maintenance Responsibilities for Aircraft Tire Usage

A-5C Aircraft Tires Committee
  • Aerospace Standard
  • ARP5265B
  • Current
Published 2019-10-17 by SAE International in United States
This SAE Aerospace Recommended Practice (ARP) sets forth criteria for the installation, inflation, inspection, and maintenance of aircraft tires as well as criteria for the maintenance of the operating environment so as to achieve the purpose stated in 1.1. (Definitions of terms related to aircraft tires are found in 2.2.)
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Photometric and Colorimetric Measurement Procedures for Airborne Electronic Flat Panel Displays

A-20A Crew Station Lighting
  • Aerospace Standard
  • ARP4260B
  • Current
Published 2019-09-17 by SAE International in United States
This SAE Aerospace Recommended Practice (ARP) contains methods used to measure the optical performance of airborne electronic flat panel display (FPD) systems. The methods described are specific to the direct view, liquid crystal matrix (x-y addressable) display technology used on aircraft flight decks. The focus of this document is on active matrix, liquid crystal displays (LCD). The majority of the procedures can be applied to other display technologies, however, it is cautioned that some techniques need to be tailored to different display technologies. The document covers monochrome and color LCD operation in the transmissive mode within the visual spectrum (the wavelength range of 380 to 780 nm). These procedures are adaptable to reflective and transflective displays paying special attention to the source illumination geometry. Photometric and colorimetric measurement procedures for airborne direct view CRT (cathode ray tube) displays are found in ARP1782. Optical measurement procedures for airborne head up displays (HUDs) can be found in ARP5287. Generally, the procedures describe manual single point measurements. The individual procedures may be readily incorporated into automated testing equipment…
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Paste Adhesive for Core Restoration Part 1 - General Requirements

AMS CACRC Commercial Aircraft Composite Repair Committee
  • Aerospace Material Specification
  • AMS2950/1
  • Current
Published 2019-09-17 by SAE International in United States
This Technical Specification gives information about technical requirements and qualification procedures of adhesive paste with or without thickening agent for core restoration of aircraft components.
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Development of Multi-Material Overhead Stowage Systems for Commercial Aircrafts by Using New Design and Production Methods

3D Systems GmbH-Gunnar Fick
Composite Technology Center / CTC GmbH-Marc Fette
Published 2019-09-16 by SAE International in United States
Innovative, lightweight and cost-efficient aircraft components require the use of modern lightweight materials and efficient production technologies. A promising technology is the combination of chopped fiber Sheet Molding Compounds (SMC) and pre-impregnated, continuous fiber fabrics processed by single-stage compression molding. The so-called Hybrid SMC Technology obtains cost-efficiency as well as time-saving production of loaded and functional aircraft components. However, reliable design principles for components and computing methods for predicting the material behavior have to be developed for a use in aviation industry. Hence, this paper deals with the development of materials, fabrics, manufacturing processes and computing methods related to the Hybrid SMC Technology. Those developments are demonstrated and validated by the implementation of a lightweight multi-material overhead stowage compartment (OHSC) using new design approaches as well as assembly principles.
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Supply Chain Vulnerabilities Impacting Commercial Aviation

Kirsten M. Koepsel
  • Book
  • T-138
Published 2019-09-04 by SAE International in United States

Written by Kirsten Koepsel, a lawyer and engineer whose work has focused on aviation cybersecurity, Supply Chain Vulnerabilities Impacting Commercial Aviation addresses the big question facing aircraft manufacturers today: keep the work in house or outsource it? The ongoing battle between cost cutting and supply-chain control is ever more visible as aircraft OEMs have full order books and tight delivery schedules.

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Safety Assessment of General Aviation Airplanes and Rotorcraft in Commercial Service

S-18C ARP5150A and ARP5151A Working Group
  • Aerospace Standard
  • ARP5151A
  • Current
Published 2019-08-20 by SAE International in United States
This document describes a process that may be used to perform the ongoing safety assessment for (1) GAR aircraft and components (hereafter, aircraft), and (2) commercial operators of GAR aircraft. The process described herein is intended to support an overall safety management program. It is to help a company establish and meet its own internal standards. The process described herein identifies a systematic means, but not the only means, to assess continuing airworthiness. Ongoing safety management is an activity dedicated to assuring that risk is identified and properly eliminated or controlled. The safety management process includes both safety assessment and economic decision-making. While economic decision-making (factors related to scheduling, parts, and cost) is an integral part of the safety management process, this document addresses only the ongoing safety assessment process. This ongoing safety assessment process includes safety problem identification and corrective action, tracking of problems, the application of “lessons learned” to improve the efficiency of the process, and reduction of the time to achieve corrective action in the field. ARP5150 is the recommended practice for…
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IVHM Design Guidelines

HM-1 Integrated Vehicle Health Management Committee
  • Aerospace Standard
  • ARP6407
  • Current
Published 2019-07-29 by SAE International in United States
This Aerospace Recommended Practice (ARP) provides guidance for the design of an integrated vehicle health management (IVHM) capability that will extend the vehicle’s inherent design to enable health management of the platform and its components. This guidance is technology-independent; the principles are generally applicable to the majority of potential IVHM design scenarios, including “clean sheet” system design, where IVHM is considered as a primary design consideration, and the retrofit design, where existing systems are modified and leveraged with the IVHM capability. In either case, this ARP provides guidance for designing the IVHM capability from the feasibility assessment to the conceptual design analysis and to the development design phases, with considerations given to trade studies, metrics, and life cycle impacts.
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NRC Particle Detection Probe: Results and Analysis from Ground and Flight Tests

National Research Council Canada-Craig Davison, Jennifer Chalmers, Dan Fuleki
Published 2019-06-10 by SAE International in United States
High altitude ice crystals are causing in-service events in excess of one per month for commercial aircraft. The effects include air data probes malfunctioning (pitot pressure and total air temperature in particular), and uncommanded engine power loss or flameout events. The National Research Council Canada (NRC) has developed a particle detection probe (PDP) that mounts on the fuselage of aircraft to sense and quantify the ice crystals in the environment. The probe is low-power and non-intrusive. This paper presents the results of ground and flight testing of this probe. Results are presented for ground testing in a sea level ice crystal wind tunnel and an altitude icing tunnel capable of generating both ice crystal and super-cooled liquid. The PDP was operated on several flight campaigns and the results of two will be presented. The first was on board a NRC Convair 580 aircraft in French Guiana (FG) and the second was on an Airbus operated A340 research aircraft in Darwin and Reunion Island. The flight campaigns included fully glaciated, mixed phase and fully liquid conditions.…
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How Dual Polarization Technique May Improve Weather Radar on Commercial Aircraft

NOVIMET-Jacques Victor Testud, Emmanuel Moreau, Erwan Le Bouar
Published 2019-06-10 by SAE International in United States
The airborne weather radar on a commercial aircraft is essential to ensure flight safety. It is able to detect severe weather, probable areas where presence of hail may be suspected, and thanks to its Doppler capability, the wind shears that may be dangerous when taking-off or landing. However, because it operates at X-band, the picture that it offers to the pilot may be seriously biased in situation of severe weather, in reason of the attenuation of the radar wave.The adoption of the dual pol technique in this weather radar would be most beneficial for the quality of the information delivered to the pilot for the following reasons:1Dual pol technique allows to operate a classification of the precipitation: distinguishing rain, melting layer, snow, hail, small ice particles.2Dual pol technique allows correcting the return signal for attenuation in rain.The paper aims reporting recent advances in the exploitation of dual pol radar data, based on the concept of normalisation of the particle size distribution (PSD) and on ZPHI® algorithm for precipitation retrieval. Their combination helps retrieving parameter N0*…
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