Noise characteristics of eight helicopters : final report : prepared for U.S. Dept. of Transportation, Federal Aviation Administration, Systems Research and Development Service /
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Format: | Book |
Language: | English |
Published: |
Washington : Springfield, Va. :
Dept. of Transportation, Federal Aviation Administration, Systems Research & Development Service ; available through the National Technical Information Service,
1977
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Series: | Report ; FAA-RD-77-94
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