Measurement resolution of noise directivity patterns from acoustic flight tests /

Bibliographic Details
Main Author:	Conner, David A. (David Alan), 1956-
Corporate Authors:	United States. National Aeronautics and Space Administration. Scientific and Technical Information Division, United States. Army Aviation Systems Command
Format:	Government Document Microform Book
Language:	English
Published:	[Washington, D.C.] : National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division ; 1989.
Series:	AVSCOM technical report ; 89-B-004. NASA technical memorandum ; 4134.
Subjects:	Helicopters > Noise > Measurement. Aeroacoustics. Aircraft noise. Directivity. Flight tests. Noise measurement. Resolution.
Online Access:	https://purl.fdlp.gov/GPO/LPS71768

Description
Item Description:	"Performing organization report number: L-16456"--Technical rept. documentation p. "October 1989." Shipping list number: 90-0470-M. Microform.
Physical Description:	40 pages : illustrations ; 28 cm. Also available via Internet from the NASA Technical Report Server web site. Address as of 7/13/06: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19900001363%5F1990001363.pdf; current access available via PURL.
Bibliography:	Includes bibliographical references (pages 10-11).