Investigation on experimental techniques to detect, locate, and quantify gear noise in helicoper transmissions
By: Patrick M. Flanagan and William J. Atherton ; prepared for Lewis Reseach Center.
Contributors: United States. National Aeronautics and Space Administration.
Series: NASA contractor report -- NASA CR-3847.
Publisher: Dept. of Mechanical and Aerospace Engineering, University of Missouri-Rolla; National Technical Information Service
Published: 1985
Place of publication: Rolla, Mo; [Springfield, Va
Language: eng
Format: Microform
Subjects: Helicopters -- Transmission devices.; Noise -- Measurement.; Sound analyzers.
Notes: Distributed to depository libraries in microfiche.

Microfiche. [Washington, D.C. : National Aeronautics and Space Administration, 1985] 2 microfiches.