Helicopter noise measurements
Subtitle: data report.
Contributors: United States. Federal Aviation Administration. Systems Research and Development Service.
Series: Report - Federal Aviation Administration, Systems Research and Development Service ; FAA-RD-77-57
Publisher: Dept. of Transportation, Federal Aviation Administration, Systems Research and Development Service; for sale by the National Technical Information Service
Published: 1977
Place of publication: Washington; Springfield, Va
Language: eng
Number of pages: 797
Subjects: Helicopters -- Noise.
Notes: Issued Apr. 1977.
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