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Protection Against Hearing Loss in General Aviation Operations, Phase IIAn inflight evaluation of four aural protectors is presented. The hearing protection devices studied were ear muffs, plastic ear plugs, rubber ear plugs, and wax ear plugs. It is concluded that ear plugs are satisfactory for providing adequate sound attenuation in general aviation aircraft. However, two problems were found in the use of ear plugs; comfort and interference with cabin communications.
Document ID
19730018351
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Parker, J. F., Jr. (BioTechnology, Inc. Falls Church, VA, United States)
Date Acquired
September 2, 2013
Publication Date
September 1, 1972
Subject Category
Biotechnology
Report/Patent Number
NASA-CR-133303
Report Number: NASA-CR-133303
Accession Number
73N27078
Funding Number(s)
CONTRACT_GRANT: NASW-2265
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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