Helicopter acoustics
Subtitle: proceedings of an International Specialists Symposium sponsored by the American Helicopter Society, Washington, D.C.; the U.S. Army Research Office, Durham, North Carolina; and the Langley Research Center, Hampton, Virginia, and held at Langley Research Center, May 22-24, 1978.
Contributors: Langley Research Center.; United States. Army Research Office, Durham, N.C.; American Helicopter Society.
Series: NASA conference publication ; 2052; NASA conference publication -- 2052.
Publisher: National Aeronautics and Space Administration, Scientific and Technical Information Office; for sale by the National Technical Information Service
Published: 1978
Place of publication: [Washington]; Springfield, Va
Language: eng
Subjects: Helicopters -- Congresses.; Acoustical engineering -- Congresses.; Noise control -- Congresses.
Notes: Includes bibliographical references.