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In-flight acoustic test results for the SR-2 and SR-3 advanced-design propellersSeveral advanced-design propellers, previously tested in the wind tunnel at the Lewis Research Center, have been tested in flight at the Dryden Flight Research Facility. The flight-test propellers were mounted on a pylon on the top of the fuselage of a JetStar airplane. Acoustic data for the advanced-design SR-2 and SR-3 propellers at Mach numbers to 0.8 and helical-tip Mach numbers to 1.15 are presented; maximum blade-passage frequency sound-pressure levels are also compared.
Document ID
19830055068
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Lasagna, P. L. (NASA Flight Research Center Edwards, CA, United States)
Mackall, K. G. (NASA Flight Research Center Edwards, CA, United States)
Cohn, R. B. (NASA Flight Research Center Edwards, CA, United States)
Date Acquired
August 11, 2013
Publication Date
June 1, 1983
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
AIAA PAPER 83-1214
Accession Number
83A36286
Distribution Limits
Public
Copyright
Other

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