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A Quiet Engine for stilling complaints.Two experimental Quiet Engines using derated CF6 cores are discussed. One engine has a low-speed fan running at a tip speed of 1160 fps; the other engine has a fan running at the high speed of 1550 fps. The two engines are expected to show the relative advantages of fans operating at low tip speeds with high lift coefficients in comparison with fans operating at high tip speeds with low lift coefficients. Test results obtained with full-scale (6-ft diameter) fans are examined.
Document ID
19730032769
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Sanders, N. D. (NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 7, 2013
Publication Date
January 1, 1973
Publication Information
Publication: Astronautics and Aeronautics
Volume: 11
Subject Category
Propulsion Systems
Accession Number
73A17571
Distribution Limits
Public
Copyright
Other

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