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Evaluation of Emergency-Locator-Transmitter performance in real and simulated crash testsEmergency locator transmitter (ELT) activation problems were investigated by testing a sampling of ELT units in actual crashes and in a special test apparatus which simulated longitudinal crash pulses with superimposed local structural resonances. The probable causes of excessive false alarms and nonactivation of ELT's during crash situations were determined. Solutions to operational and technical problems were also examined as well as the sensitivity of ELT impact switches to orientation and to local structural vibrations.
Document ID
19810012847
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Carden, H. D. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 4, 2013
Publication Date
April 1, 1981
Subject Category
Structural Mechanics
Report/Patent Number
NASA-TM-81960
L-14431
Report Number: NASA-TM-81960
Report Number: L-14431
Meeting Information
Meeting: 1980 Aircraft Safety and Operating Probl. Conf.
Location: Hampton, VA
Country: United States
Start Date: November 5, 1980
End Date: November 7, 1980
Accession Number
81N21376
Funding Number(s)
PROJECT: RTOP 505-41-33-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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