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Effect of rotor design tip seed on aerodynamic performance of a model VTOL lift fan under static and crossflow conditionsResults are presented for a wind tunnel investigation of three single VTOL lift fan stages designed for the same overall total pressure ratio at different rotor tip speeds. The stages were tested in a model lift fan installed in a wing pod. The three stages had essentially the same aerodynamic performance along the operating line. However, differences in stage thrust characteristics were obtained when a variation in back pressure was imposed on the stages by cross-flow effects and thrust-vectoring louvers.
Document ID
19730006304
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Stockman, N. O. (NASA Lewis Research Center Cleveland, OH, United States)
Loeffler, I. J. (NASA Lewis Research Center Cleveland, OH, United States)
Lieblein, S. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 2, 2013
Publication Date
January 1, 1973
Subject Category
Aircraft
Report/Patent Number
NASA-TM-X-68169
E-7230
Report Number: NASA-TM-X-68169
Report Number: E-7230
Meeting Information
Meeting: Ann. Gas Turbine Conf.
Location: Washington, D. C.
Country: United States
Start Date: April 8, 1973
End Date: April 12, 1973
Sponsors: Am. Soc. of Mech. Engr.
Accession Number
73N15031
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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