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Preliminary Investigation of Methods to Increase Base Pressure of Plug Nozzles at Mach 0.9The effects of various afterbody changes on the base pressure of a nacelle-type isentropic plug nozzle installation operating at lower-than-design jet pressure ratios were investigated at a Mach number of 0.9. Although the estimates of the net propulsive force contain some uncertainties, the results indicate that both a plain-ring base shroud and a circular-arc boattail fairing reduced the loss in net propulsive force experienced with a cylindrical nacelle installation of the plug nozzle.
Document ID
19930089468
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Salmi, Reino J
Date Acquired
August 16, 2013
Publication Date
December 19, 1956
Report/Patent Number
NACA-RM-E56J05
Report Number: NACA-RM-E56J05
Accession Number
93R18758
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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