Flow structure generated by perpendicular blade vortex interaction and implications for helicopter noise predictions
By: principle investigators: William J. Devenport, Stewart A.L. Glegg.
Contributors: United States. National Aeronautics and Space Administration.
Series: [NASA contractor report] -- NASA CR-195824.
Publisher: National Aeronautics and Space Administration; National Technical Information Service, distributor
Published: 1994
Place of publication: [Washington, D.C; Springfield, Va
Language: eng
Format: Microform
Notes: Distributed to depository libraries in microfiche.

Shipping list no.: 1994-0864-M.

Also available via Internet from the NTRS web site. Address as of 12/2/04: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19940029701%5F1994029701.pdf; current access is available via PURL.

Microfiche. [Washington, D.C. : National Aeronautics and Space Administration, 1994] 1 microfiche.