Acoustic treatment of the NASA Langley 4- by 7-meter tunnel
Subtitle: a feasibility study
By: James C. Yu, A. Louis Abrahamson.
Contributors: Abrahamson, A. Louis.; United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.
Series: NASA technical paper -- 2563.
Publisher: National Aeronautics and Space Administration, Scientific and Technical Information Branch; For sale by the National Technical Information Service]
Published: 1986
Place of publication: [Washington, D.C.]; [Springfield, Va
Language: eng
Format: Microform
Subjects: Aerodynamic noise -- Research.; Helicopters -- Noise.
Notes: Distributed to depository libraries in microfiche.

Microfiche. [Washington, D.C.? : National Aeronautics and Space Administration], 1986. 1 microfiche.