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Noise reduction techniques: Criteria and validationModification of proposed rules and regulations to provide operational flexibility and address derivations were investigated. Prediction capabilities to meet the roles need to be improved. A historical overview of current problems was reviewed in the light of past history.
Document ID
19840021595
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Drees, J. M. (Bell Helicopter Co. Fort Worth, TX, United States)
Date Acquired
August 12, 2013
Publication Date
July 1, 1982
Publication Information
Publication: NASA. Langley Research Center Rotorcraft Noise
Subject Category
Acoustics
Accession Number
84N29664
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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IDRelationTitle19840021593Collected WorksRotorcraft Noise
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