2 options
Noise abatement for helicopters.
- Format:
- Book
- Government document
- Author/Creator:
- United States. Federal Aviation Administration
- Series:
- United States. Federal Aviation Administration. Advisory circular ; AC 91-66.
- Advisory circular ; AC no. 91-66
- Language:
- English
- Subjects (All):
- Helicopters--Noise--Control.
- Helicopters.
- Helicopters--Noise--Safety measures.
- Physical Description:
- 1 online resource (8 pages)
- Place of Publication:
- [Washington, D.C.] : U.S. Dept. of Transportation, Federal Aviation Administration, [1987]
- Notes:
- Title from PDF caption (viewed January 26, 2009).
- "6/4/87."
- Other Format:
- United States. Federal Aviation Administration. Noise abatement for helicopters
- OCLC:
- 299576613
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