Lightning Protection of Aircraft

"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 ...

Author: Franklin A. Fisher

Publisher:

ISBN:

Category: Aeronautics

Page: 550

View: 329

"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.

Lightning Protection of Aircraft

Author: Franklin A. Fisher

Publisher:

ISBN:

Category: Aeronautics

Page: 550

View: 465


Lightning Protection of Aircraft

This book is an attempt to present under one cover the current state of knowledge concerning the potential lightning effects on aircraft and that means that are available to designers and operators to protect against these effects.

Author: Franklin Fisher

Publisher: CreateSpace

ISBN: 9781478241522

Category:

Page: 564

View: 781

This book is an attempt to present under one cover the current state of knowledge concerning the potential lightning effects on aircraft and that means that are available to designers and operators to protect against these effects. The impetus for writing this book springs from two sources- the increased use of nonmetallic materials in the structure of aircraft and the constant trend toward using electronic equipment to handle flight-critical control and navigation function.

Scientific and Technical Aerospace Reports

lightning - strike attachment zones design . in an analysis of aircraft B.LP. ...
DIRECT EFFECTS PROTECTION In its Lightning Protect of Aircraft Oct 1977 p
105-114 refs ( For availability see N78-11024 02-03 ) Avail : NTIS HC A23 / MF
A01 ...

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Category: Aeronautics

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Fuel Containment Lightning Protection and Damage Tolerance in Large Composite Primary Aircraft Structures

Title and Subtitle Fuel Containment , Lightning Protection , and Damage
Tolerance in Large Composite Primary Aircraft Structures 5 . Report Date May
1985 6 . Performing Organization Code 76 - 20 7 . Author ( s ) 8 . Performing
Organization ...

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Page: 38

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Lightning Protection Guidelines and Test Data for Adhesively Bonded Aircraft Structures

Author: J. E. Pryzby

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Category: Airframes

Page: 175

View: 581

The highly competitive marketplace and increasing cost of energy has motivated manufacturers of general aviation aircraft to utilize composite materials and metal-to-metal bonding in place of conventional fasteners and rivets to reduce weight, obtain smoother outside surfaces and reduce drag. The purpose of this program was protection of these new structures from hazardous lightning effects. The program began with a survey of advance-technology materials and fabrication methods under consideration for future designs. Sub-element specimens were subjected to simulated lightning voltages and currents. Measurements of bond line voltages, electrical sparking, and mechanical strength degradation were made to comprise a data base of electrical properties for new technology materials and basic structural configurations. The second phase of the program involved tests upon full scale wing structures which contained integral fuel tanks and which were representative of examples of new technology structures and fuel systems. The purpose of these tests was to provide a comparison between full scale structural measurements and those obtained from the 'sub-element' specimens.

The Key to Lightning Technology

AIRCRAFT LIGHTNING PROTECTION At a recent meeting of specialists
concerned with the effects of lightning on military and commercial aircraft [21] ,
lengthy discussions were held on lightning protection of (1) present and older
aircraft ...

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Category: Atmospheric electricity

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International Aerospace Abstracts

AIAA , AHS , and ASEE , Aircraft Design , Systems and Operations Conference ,
Dayton , OH , Sept. 17-19 , 1990 , AIAA Paper ... These data were studied with an
emphasis on lightning avoidance by aircraft and on aircraft protection design .

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Category: Aeronautics

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Lightning Effects on the NASA F 8 Digital fly by wire Airplane

INTRODUCTION Present practices in lightning protection of aircraft deal
predominantly with what may be called the DIRECT EFFECTS of lightning,
including burning, blasting and physical deformation of skins and structural
elements. Existing ...

Author: J. A. Plumer

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Category: Airplanes

Page: 143

View: 968

The effects of lightning on a Digital Fly-By-Wire (DFBW)aircraft control system were investigated. The aircraft was a NASA operated F-8 fitted with a modified Apollo guidance computer. Current pulses similar in waveshape to natural lightning, but lower in amplitude, were injected into the aircraft. Measurements were made of the voltages induced on the DFBW circuits, the total current induced on the bundles of wires, the magnetic field intensity inside the aircraft, and the current density on the skin of the aircraft. Voltage measurements were made in both the line-to-ground and line-to-line modes. Voltages measured at the non-destructive test level were then scaled upward to determine how much would be produced by actual lightning. A 200,000 ampere severe lightning flash would produce between 40 and 2000 volts in DFBW circuits. Some system components are expected to be vulnerable to these voltages.

Improved Test Methods for Determining Lightning induced Voltages in Aircraft

Crouch , K . E . : Lightning Protection Evaluation of Launch Complex 36A Using
Model Techniques . ... Kim , D . G . , Dubro , G . A . and Tessler , L . P . :
Transmission Line Theory Applied to Aircraft Lightning Interactions , Proceedings
of 1977 ...

Author: K. E. Crouch

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Category: Airplanes

Page: 99

View: 295


Aeronautical Engineering

1991-28] p 819 A91-45610 Description and interpretation of aircraft lightning
attachment from electric and magnetic field ... N91-11714 Lightning protection
requirements for aircraft: A proposed specification [RAE-TM-FS(F)-632-ISSUE-1-
R] p ...

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Category: Aeronautics

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A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA)

National Fire Codes

Tree protection ( 3 ) to Note 1 6 G.1.2 All metal airplanes parked outside hangars
should be grounded . ... For additional protection of aircraft parked outside
hangars , an overhead ground wire or mast - type lightning protection system can
be ...

Author: National Fire Protection Association

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Category: Fire extinction

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Ei Engineering Conference Index

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ISBN: 9780873940399

Category: Engineering

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Sandwich Construction for Aircraft Materials properties and design criteria

The following recommendations are made for the protection of personnel in
nonmetallic aircraft (ref. ... The addition of extra lightning conductors outside the
aircraft and connected in parallel with the inside system, decreases the
magnitude of ...

Author: Forest Products Laboratory (U.S.)

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Category: Airplanes

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View: 324


The AOPA Pilot

Lightning Damage to a General Aviation Aircraft - Description and Analysis , "
Technical Note . Paul T ... The aircraft lightning protection and well - protected
electrical systems , business has become a growth industry . examples of various
 ...

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Category: Aeronautics

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NASA SP

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Lightning Simulation Test Technique Evaluation

These factors combine to reduce the margin of safety of the advanced aircraft
electronic systems by two to three orders of magnitude . Considerable design
efforts may be required to accomplish the protection for these advanced
technology ...

Author: William W. Cooley

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Category: Airframes

Page: 119

View: 717

This report documents the results of four separate lightning simulation tests on a specially designed test bed aircraft. The simulation techniques used are low-level swept continuous wave, low-level fast rise pulse, moderate-level pulse, and shock-excitation. The test bed is made up of advanced composite materials with built-in lightning protection and electrical equipment installations. This configuration is electrically and geometrically representive of a general aviation heavy single engine aircraft. Comparative data was developed to determine the effectiveness of the four test methods and used to quantify differences between them. Analysis necessary to extrapolate the results of the tests to the severe lightning environment is discussed. Predicted values from computer models are compared with test results. Keywords: Research aircraft; Electromagnetic interference; Atmospheric electricity hazards; Aviation safety; Composite materials; Electronic equipment; Simulation; Lightning protection. (edc).

Canadian Aeronautics and Space Journal

Large planes may trigger a lightning strike where vid nor The best protection
against lightning for all - weather operational planes is a light ning rod diverter
and bonding system . Certain sections of the plane , such as plastic windows and
 ...

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Category: Aeronautics

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View: 408


Design Considerations for Composite Fuselage Structure of Commercial Transport Aircraft

Some promising developmental lightning protection methods that should be
considered are aluminum diverter strips ... Since the entire aircraft becomes a
radiating antenna at some frequencies , special consideration also must be given
to ...

Author: G. W. Davis

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Category:

Page: 51

View: 395

A study was conducted to explore the structural, manufacturing, and service and environmental considerations that could impact the design of composite fuselage structure; to assess the severity of these considerations; and to delineate the principal design drivers. A summary of the major design considerations discussed in this report are listed in Table 1. Each consideration is ranked with respect to whether it is a principal design driver, a requirement that probably will not govern the design but should be checked (secondary requirement) or a consideration that requires the development of new design criteria. (MM).

Specification and Testing for Power by Wire Aircraft

Lightning Protection of Aircraft , " Fisher , F. A. and Plumer , J. A. , NASA
Reference Publication 1008 , October 1977 . ( 5 ) . " Lightning Test Waveforms
and Techniques for Aerospace Vehicles and Hardware , " SAE AEAL Committee
Report ...

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