Correlation of helicopter impulsive noise from blade-vortex interaction with rotor mean inflow
By: Andrew B. Connor and R.M. Martin.
Contributors: Martin, R. M. 1956-; United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.
Series: NASA technical paper -- 2650.
Publisher: National Aeronautics and Space Administration, Scientific and Technical Information Branch; For sale by the National Technical Information Service]
Published: 1987
Place of publication: [Washington, DC]; [Springfield, Va
Language: eng
Format: Microform
Subjects: Helicopters -- Testing.
Notes: Distributed to depository libraries in microfiche.

Microfiche. [Washington, D.C.? : National Aeronautics and Space Administration], 1987. 1 microfiche ; 11 x 15 cm.