Download or read book Standard Practice for Simplified Methods for Addressing High Intensity Radiated Fields HIRF and Indirect Effects of Lightning on Aircraft written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Intensity Radiated Field External Environments for Civil Aircraft Operating in the United States of America written by Frederick W. Heather and published by . This book was released on 2002 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Intensity Radiated Field External Environments for Civil Aircraft Operating in the United States of America written by Frederick W. Heather and published by . This book was released on 1998-12 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: NAWCAD Patuxent River, Maryland, was tasked by the FAA to determine the High Intensity Radiated Field (HIRF) levels for civil aircraft operating in the U.S. The electromagnetic field survey will apply to civil aircraft seeking FAA certification under Federal Aviation Regulations (FAR's) Parts 23, 25, 27, and 29. The HIRF survey determined the Rotorcraft Severe, Fixed Wing Severe, Certification, and Normal Environments that civil aircraft may be exposed to while operating in the continental U.S. and its territories. The HIRF survey was accomplished by accessing EME data bases, technical manuals, and phone contact with emitter operators to determine the HIRF drivers, analyze the severity, and provide a U.S. composite environment. These HIRF environments were subsequently provided to the EEHWG for harmonization with the European HIRF environment. The harmonized environment is known as the International HIRF environments that are planned to be used in the FAR advisory material and other supporting documents. The International HIRF environments are also shown in this report for completeness.
Download or read book Development of a Proposed International Standard for Certification of Aircraft to High Intensity Radiated Fields HIRF written by Noel B. Sargent and published by . This book was released on 1993 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Standard Specification for High Intensity Radiated Field HIRF Protection in Small Aircraft written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Understanding HIRF high Intensity Radiated Fields written by Gerald L. Fuller and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book User s Manual for Certification of Aircraft Electrical Electronic Systems for the Indirect Effects of Lightning written by AE-2 Lightning Committee and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This ARP provides detailed information, guidance, and methods in support of the Federal Aviation Administration (FAA) Advisory Circular (AC) 20-136. AC 20-136 provides a means, but not the only means, for demonstrating compliance with Title 14 of the Code of Federal Regulations (14 CFR) 23.1306 (Amendment 23-61), 23.2515 (Amendment 23-64), 25.1316, 27.1316, and 29.1316. It is also intended for this ARP to provide the same information, guidance, and methods, to the European Aviation Safety Agency (EASA) certification specifications CS 23.1306 (Amendment 23/4), 23.2515 (Amendment 23/5), 25.1316, 27.1316, and 29.1316, and associated Acceptable Means of Compliance (AMC) 20-136. This ARP provides references relevant to identifying: (1) acceptance criteria for the indirect effects of lightning compliance approaches, (2) verification (analysis and test) methods including those associated with multiple stroke and multiple burst, (3) recommended design options to optimize needed system immunity to lightning indirect effects, and (4) provide guidance in the areas of continued airworthiness of the lightning protection. Equipment hazards due to the indirect effects on equipment mounted on the aircraft exterior, equipment located within the aircraft interior as well as all associated interconnecting wiring are addressed. This ARP provides additional guidelines in the application of indirect effects of lightning tests identified in DO-160/ED-14 Section 22. The FAA and EASA regulations apply to all adverse effects of lightning for electrical and electronic systems. Refer to ARP5577 for guidance related to lightning direct effects on electrical and electronic systems. This revision incorporates guidance material that is consistent with Federal Aviation Administration lightning certification regulations 14 CFR 23.1306, 23.2515, 25.1316, 27.1316, and 29.1316. This revision also incorporates changes throughout that are consistent with current guidance and practices in support of the FAA Advisory Circular AC 20-136. The contents were revised and greatly expanded to also be consistent with the Indirect Effects of Lightning related contents of ARP5416.Due to the extensive re-work and re-organization of this revision, the standard "change bar" indications for the changes are not shown; therefore, an "R" has been placed before the document title.
Download or read book Aircraft Lightning Test Methods written by AE-2 Lightning Committee and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document is one of a set covering the whole spectrum of aircraft interaction with lightning. This document is intended to describe how to conduct lightning direct effects tests and indirect system upset effects tests. Indirect effects upset and damage tolerance tests for individual equipment items are addressed in DO-160/ED-14. Documents relating to other aspects of the certification process, including definition of the lightning environment, zoning, and indirect effects certification are listed in Section 2.This document presents test techniques for simulated lightning testing of aircraft and the associated systems. This document does not include design criteria nor does it specify which items should or should not be tested. Acceptable levels of damage and/or pass/fail criteria for the qualification tests must be approved by the cognizant certification authority for each particular case. When lightning tests are a part of a certification plan, the test methods described herein are an acceptable means, but not the only means, of meeting the test requirements of the certification plan.Each test method is set out in a uniform format, describing the test purpose, test object, test setup, test waveforms (voltage and/or current), measurements and data recording, test procedure and data interpretation. Guidance is provided on how to select the appropriate test or series of tests, and how the test results can be assessed.Natural lightning is a complex and variable phenomenon and its interaction with different types of vehicles may be manifested in many different ways. It is not intended that every test described herein be applied to every system requiring lightning verification tests. The document is written so that specific aspects of the environment can be called out for each specific program as dictated by the vehicle design, performance and mission constraints. With the original release of the document, many new test methods were provided to account for aircraft operational experience and changing aircraft technology, including more reliance on electronic data and control systems and increasing use of composite materials in aircraft structures. As experience is gained with these test methods, some changes and clarifications are needed to ensure consistency across test organizations, particularly regarding high voltage tests and integrated system functional upset tests. Also, ignition source detection methods have historically relied upon the use of Polaroid film as the standard. Since this film's source of supply is rapidly disappearing, photographic methods using modern camera technologies needs to be included in the recommended practice.
Download or read book The Certification of Aircraft Electrical and Electronic Systems for Operation in the High Intensity Radiated Fields HIRF Environment written by United States. Federal Aviation Administration and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High intensity Radiated Fields HIRF Risk Analysis written by James R. Elliott and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report details the results of a study that has been completed to assess the risk of High-Intensity Radiated Fields (HIRF) to fixed-wing transport and nontransport aircraft in the U.S. The approach to the assessment of HIRF included the following elements: (1) Detailed information on 893 emitters and 5913 flights near Denver and Seattle; (2) Quantitative judgements from industry experts about onboard avionics with regard to type, properties, and response probabilities. (3) Electromagnetic environment levels from regulatory and standard sources DO-160B, DO-160C, and the proposed Notice of Proposed Rulemaking (NPRM). Certification field strength levels from the proposed NPRM, DO-160B, and DO-160C were used to calculate the probability of a HIRF-induced catastrophic aircraft event. No clear evidence was found that flights in the Denver and Seattle areas experienced a HIRF environment level greater than the NPRM certification levels. The probability of the HIRF-induced catastrophic events are presented as a quantitative assessment of the HIRF risks to aircraft safety.
Download or read book A Methodology for Assessing High Intensity RF Effects in Aircraft written by and published by . This book was released on 1993 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical components have an inherent immunity to the electromagnetic interference (EMI) associated with High Intensity Radiated Fields (HIRF). The optical technology embodied in Fly-by-Light (FBL) might therefore minimize the effects of HIRF on digitally controlled systems while providing lifetime immunity to signal EMI. This is one of the primary motivations for developing FBL systems for aircraft. FBL has the potential to greatly simplify EMI certification by enabling technically acceptable laboratory tests of subsystems, as opposed to expensive full airplane tests. In this paper the authors describe a methodology for assessing EMI effects on FBL aircraft that reduces or potentially eliminates the need for full airplane tests. This methodology is based on comparing the applied EMI stress--the level of interference signal that arrives at a unit under test--versus the EMI strength of the unit--the interference level it can withstand without upset. This approach allows one to use computer models and/or low power coupling measurement and similarity (to other previously tested aircraft) to determine the stress applied to installed subsystems, and to use benchtop cable injection tests and/or mode stirred chamber radiated tests to determine the strength of the subsystem.
Download or read book Lightning Protection Guidelines for Aerospace Vehicles written by C. C. Goodloe and published by . This book was released on 1999 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book HIRF Risk Analysis written by James R. Elliott and published by . This book was released on 1999 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Methods and Results for Quantification of Lightning aircraft Electrodynamics written by and published by . This book was released on 1987 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Intensity Radiated Fields HIRF written by Michael S. Glynn and published by . This book was released on 1991 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lightning Protection of Aircraft written by Franklin A. Fisher and published by . This book was released on 1977 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book is an attempt to present under one cover the current state of knowledge concerning the potential lightning effects on aircraft and the means that are available to [aircraft] designers and operators to protect against these effects."--p. iii.
Download or read book Aircraft and High Intensity Radiated Fields an Update on the Significant Developments written by and published by . This book was released on 1992 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: This conference looked at the impact of the forthcoming requirements being formulated by the Joint Aviation Authorities (JAA) in parallel with the Federal Aviation Administration (FAA), which will address the concern for the immunity of aircraft electrical and electronic systems when exposed to high intensity radiated fields (HIRF). The concern is over the growing reliance on these systems and the possibly reduced shielding afforded by the composite materials now used in advanced aircraft design.
