In-Flight Characterization of the Electromagnetic Environment Inside an Airliner

In-Flight Characterization of the Electromagnetic Environment Inside an Airliner
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
Total Pages: 150
Release: 2018-06-15
Genre:
ISBN: 9781721097456
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In 1995, the NASA Langley Research Center conducted a series of experimental measurements that characterized the electromagnetic environment (EME) inside a Boeing 757 airliner while in flight, Measurements were made of the electromagnetic energy coupled into a commercially configured aircraft as it was flown in close proximity to ground-based radio frequency (RF) transmitters operating at approximately 26, 173. and 430 MHz. The goal of this experiment was to collect data for the verification of analytical predictions of the internal aircraft response to an external stimulus. This paper describes the experiment, presents the data collected by it, and discusses techniques used to compute both the magnitude of the electric field illuminating the aircraft and its direction of propagation relative to a coordinate system fixed to the aircraft. The latter is determined from Global Positioning System (GPS) and aircraft Inertial Reference Unit (IRU) data. The paper concludes with an examination of the shielding effectiveness of the test aircraft. as determined by comparison of' the measured internal EME and computed external EME. Moeller, Karl J. and Dudley, Kenneth L. and Quach, Cuong C. and Koppen, Sandra V. Langley Research Center RTOP 522-14-21-01

Democrat Down

Democrat Down
Author: Michael Kiefer
Publisher: Lulu.com
Total Pages: 232
Release: 2008-09-05
Genre: History
ISBN: 1435745140
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A chilling documentary of greed, corruption, and political assassination in America. Criminal analysis of six aircraft accidents that have killed high profile politicians. Are these really accidents, or something far more sinister? Previously unreported, the book makes the case that someone is using Electro-Magnetic Warfare to disrupt aircraft communications and control systems in an effort to bring down the aircraft of our political leaders. Fully documented. Not science fiction.

Handbook of Aerospace Electromagnetic Compatibility

Handbook of Aerospace Electromagnetic Compatibility
Author: Dr. Reinaldo J. Perez
Publisher: John Wiley & Sons
Total Pages: 768
Release: 2018-11-30
Genre: Science
ISBN: 111908279X
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A comprehensive resource that explores electromagnetic compatibility (EMC) for aerospace systems Handbook of Aerospace Electromagnetic Compatibility is a groundbreaking book on EMC for aerospace systems that addresses both aircraft and space vehicles. With contributions from an international panel of aerospace EMC experts, this important text deals with the testing of spacecraft components and subsystems, analysis of crosstalk and field coupling, aircraft communication systems, and much more. The text also includes information on lightning effects and testing, as well as guidance on design principles and techniques for lightning protection. The book offers an introduction to E3 models and techniques in aerospace systems and explores EMP effects on and technology for aerospace systems. Filled with the most up-to-date information, illustrative examples, descriptive figures, and helpful scenarios, Handbook of Aerospace Electromagnetic Compatibility is designed to be a practical information source. This vital guide to electromagnetic compatibility: • Provides information on a range of topics including grounding, coupling, test procedures, standards, and requirements • Offers discussions on standards for aerospace applications • Addresses aerospace EMC through the use of testing and theoretical approaches Written for EMC engineers and practitioners, Handbook of Aerospace Electromagnetic Compatibility is a critical text for understanding EMC for aerospace systems.

Electromagnetic Reverberation Characteristics of a Large Transport Aircraft

Electromagnetic Reverberation Characteristics of a Large Transport Aircraft
Author: Michael O. Hatfield
Publisher:
Total Pages: 93
Release: 1994
Genre:
ISBN:
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A demonstration test to investigate the reverberation characteristics of the avionics bay and cockpit of a typical commercial aircraft was conducted on a decommissioned Boeing 707-720B aircraft. The aircraft, located at the Aerospace Maintenance and Regeneration Center, Davis Monthan Air Force Base, Arizona, had a significant fraction of its electronics equipment remaining in the avionics bay and cockpit and the passenger compartment was essentially intact. A simulated avionics box was placed in an equipment rack and a trace on an internal circuit board was monitored. The simulated avionics box was also tested in the Naval Surface Warfare Center, Dahlgren Division (NSWCDD) mode stirred chamber (MSC). The avionics bay and cockpit were internally excited from 100 MHz to 18 GHz using a pair of horn and wire antennas placed in several locations. Aluminum foil tuners, each 2 x 2 ft, were located in the avionics bay and the cockpit. The internal electromagnetic environment was measured by a horn and a wire antenna placed successively in several locations in the avionics bay and cockpit. Limited measurements of the local ambient environment, both external to the aircraft and within the aircraft, were obtained for the FM band (88 to 108 MHz) and the VHF/UHF bands (100 MHz to 1 GHz). Cavity losses were characterized by comparing the received power to the input power. The cavity loss for the avionics bay was about 15 dB greater than the loss in the NSWCDD MSC. The loss for the cockpit was about 12 dB greater than the NSWCDD MSC. The observed stirring ratios (ratio of maximum received signal to minimum received signal at a particular frequency as the tuner rotates) were generally less than 10 dB up to about 800 MHz.

Manuals Combined: Nondestructive Testing (NDT) And Inspection (NDI)

Manuals Combined: Nondestructive Testing (NDT) And Inspection (NDI)
Author:
Publisher: Jeffrey Frank Jones
Total Pages: 8380
Release:
Genre:
ISBN:
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Over 8,300 pages .... Just a SAMPLE of the CONTENTS: NONDESTRUCTIVE INSPECTION METHODS. Published by the Departments of the Army, Navy and Air Force on 1 March 2000 - 771 pages and June 2005 - 762 pages; Metallic Materials and Elements for Aerospace Vehicle Structures 1,733 pages Designing and Developing Maintainable Products and Systems - Revision A 719 pages Sampling Procedures and Tables for Inspection by Attributes 75 pages Nondestructive Testing Acceptance Criteria 88 pages Environmental Stress Screening Process for Electronic Equipment 49 pages Handbook for Reliability Test Methods, Plans, and Environments for Engineering, Development, Qualification, and Production - Revision A 411 pages Human Engineering - Revision F 219 pages Sampling Procedures and Tables for Life and Reliability Testing (Based on Exponential Distribution) 77 pages Test Method Standard: Electronic and Electrical Component Parts 191 pages Reliability Testing for Engineering Development, Qualification and Production - Revision D 47 pages Electroexplosive Subsystem Safety Requirements and Test Methods for Space Systems (150 pages, 8.64 MB) Reliability Prediction of Electronic Equipment- Notice F 205 pages Reliability Program for Systems and Equipment Development and Production - Revision B 88 pages Electronic Discharge Control Handbook for Protection of Electrical and Electronic Parts, Assemblies and Equipment (Excluding Electrically Initiated Explosive Devices) - Revision B 171 pages Electrical Grounding for Aircraft Safety 290 pages Fuze and Fuze Components, Environmental and Performance Tests for - Revision C 295 pages Requirements for the Control of Electromagnetic Interference Characteristics of Subsystems and Equipment - Revision E 253 pages Maintainability Verification/Demonstration/Evaluation - Revision A 64 pages Failure Rate Sampling Plans and Procedures - Revision C 41 pages Maintainability Prediction 176 pages Definition of Terms for Reliability and Maintainability - Revision C 18 pages Semiconductor Devices 730 pages Reliability Modeling and Prediction - Revision B 85 pages Established Reliability and High Reliability Qualified Products List (QPL) Systems For Electrical, Electronic, and Fiber Optic Parts Specifications - Revision F 17 pages Environmental Test Methods and Engineering Guidelines 416 pages) Test Methods for Electrical Connectors - Revision A 129 pages Environmental Engineering Considerations and Laboratory Tests - Revision F 539 pages System Safety Program Requirements 117 pages Test Method Standard Microcircuits - Revision E 705 pages Test Method Standard Microcircuits - Revision F 708 pages Procedures for Performing a Failure Mode Effects and Criticality Analysis - Revision A 54 pages