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Estimation of Total Error in Altimetry

A-4 Aircraft Instruments Committee
  • Aerospace Standard
  • AIR1608B
  • Current
Published 2020-02-20 by SAE International in United States
AIR1608 ESTIMATION OF TOTAL ERROR IN ALTIMETRY proposes a method of estimating overall error of altimetry in order to provide a basis for safe vertical separation of aircraft.
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Barometry for Altimeter Calibration

A-4 Aircraft Instruments Committee
  • Aerospace Standard
  • AIR1075B
  • Current
Published 2020-02-20 by SAE International in United States
This SAE Aerospace Information Report (AIR) is concerned only with aspects directly relating to available accuracy. While well-designed photoelectric, inductive or capacitive readers and pressure regulators, and other accessories are highly desirable for convenience and production rate, they are considered to be outside the scope of this AIR.
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Integrated Navigation for Versatility and Robustness: Addressing our Navigation and Tracking Challenges

  • Professional Development
  • C1921
Published 2019-02-22

The course material covered, begins with fundamentals of navigation for versatility and robustness, showing intuitive connections of mathematics to physical examples, followed by a natural transition to advanced topics. Addressing navigation and tracking challenges, practical realities are given top priority, by delivering maximum effectiveness from simplest permissible representations. This course will enable designers to extract maximum benefit from available sensors, however extravagant or austere they may be, at every instant of time throughout a mission.  Administrators will be empowered to recognize what is achievable from any given array of equipment — without the common excessive dependence on GPS.  The course will show methods capable of producing dramatic performance improvements, without which the challenges facing the industry today won’t be met.

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In-Flight Thrust Determination

E-33 In Flight Propulsion Measurement Committee
  • Aerospace Standard
  • AIR1703A
  • Current
Published 2017-12-05 by SAE International in United States
In-Flight Thrust Determination, SAE AIR1703 reviews the major aspects of processes that may be used for the determination of in-flight thrust (IFT). It includes discussions of basic definitions, analytical and ground test methods to predict installed thrust of a given propulsion system, and methods to gather data and calculate thrust of the propulsion system during the flight development program of the aircraft. Much of the treatment is necessarily brief due to space limitations. This document and the British Ministry/Industry Drag Analysis Panel (MIDAP) Guide (Reference 1.11), which SAE Committee E-33 used as a starting point, can be used to understand the processes and limitations involved in the determination of in-flight thrust. Application to a specific in-flight thrust determination program will require the use of many important assumptions not fully developed in this document, and these assumptions must be evaluated during the conduct of the program. The determination of in-flight thrust is a complex process. Success depends upon careful planning and meticulous attention to detail throughout the test program. It is important that the participants involved…
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New Products & Services: December 2017 Aerospace Manufacturing & Fabrication

  • Magazine Article
  • TBMG-27939
Published 2017-12-01 by Tech Briefs Media Group in United States
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Guidance for the Design and Installation of Fuel Quantity Indicating Systems

AE-5A Aerospace Fuel, Inerting and Lubrication Sys Committee
  • Aerospace Standard
  • AIR5691A
  • Current
Published 2017-05-18 by SAE International in United States
This document is applicable to commercial and military aircraft fuel quantity indication systems. It is intended to give guidance for system design and installation. It describes key areas to be considered in the design of a modern fuel system, and builds upon experiences gained in the industry in the last 10 years.
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Use of Health Monitoring Systems to Detect Aircraft Exposure to Volcanic Events

HM-1 Integrated Vehicle Health Management Committee
  • Aerospace Standard
  • AIR6212
  • Current
Published 2016-12-13 by SAE International in United States
This document collates the ways and means that existing sensors can identify the platform’s exposure to volcanic ash. The capabilities include real-time detection and estimation, and post flight determinations of exposure and intensity. The document includes results of initiatives with the Federal Aviation Administration (FAA), the European Aviation Safety Agency (EASA), the International Civil Aviation Organization (ICAO), Transport Canada, various research organizations, Industry and other subject matter experts. The document illustrates the ways that an aircraft can use existing sensors to act as health monitoring tools so as to assess the operational and maintenance effects related to volcanic ash incidents and possibly help determine what remedial action to take after encountering a volcanic ash (VA) event. Finally, the document provides insight into emerging technologies and capabilities that have been specifically pursued to detect volcanic ash encounters but are not yet a part of an airplane’s standard fit.
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Data Word and Message Formats

AS-1A Avionic Networks Committee
  • Aerospace Standard
  • AS15532A
  • Current
Published 2016-10-21 by SAE International in United States
The emphasis in this standard is the development of data word and message formats for AS15531 or MIL-STD-1553 data bus applications. This standard is intended as a guide for the designer to identify standard data words and messages for use in avionics systems and subsystems. These standard words and messages, as well as the documentation format for interface control document (ICD) sheets, provide the basis for defining 15531/1553 systems. Also provided in this standard is the method for developing additional data word formats and messages that may be required by a particular system but are not covered by the formats provided herein. It is essential that any new word formats or message formats that are developed for a 15531/1553 application follow the fundamental guidelines established in this standard in order to ease future standardization of these words and messages. The standard word formats presented represent a composite result of studies conducted by the U.S. Army, Navy, and Air Force (see References 1, 2 and 3, respectively).
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Aircraft Flight Control Systems Descriptions

A-6A3 Flight Control and Vehicle Management Systems Cmt
  • Aerospace Standard
  • AIR4094A
  • Current
Published 2016-07-18 by SAE International in United States
This SAE Aerospace Information Report (AIR) supplies information on the flight control systems incorporated on various current and historic fixed wing, rotary wing, and tilt rotor aircraft. A brief description of the aircraft is followed by a description of the flight control system, some specific components, drawings of the internal arrangement, block diagrams, and schematics. System operation redundancy management is also presented.
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Pressure Altimeter Systems

A-4 Air Data Subcommittee
  • Aerospace Standard
  • AS8009C
  • Current
Published 2016-05-24 by SAE International in United States
This SAE Aerospace Standard (AS) specifies minimum performance requirements for pressure altimeter systems other than air data computers. This document covers altimeter systems that measure and display altitude as a function of atmospheric pressure. The pressure transducer may be contained within the instrument display case or located remotely. Requirements for air data computers are specified in AS8002. Some requirements for nontransducing servoed altitude indicators are included in AS791. This document does not address RVSM requirements because general RVSM requirements cannot be independently detailed at the component level. The instrument system specified herein does not include aircraft pressure lines. Unless otherwise specified, whenever the term “instrument” is used, it is to be understood to be the complete system of pressure transducer components, any auxiliary equipment, and display components. The test procedures specified herein apply specifically to mechanical type instruments. Solid state instruments or automatic test instrumentation may require other test procedures. Such differing procedures shall be justified prior to use.
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