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QCSEE - The key to future short-haul air transportThe paper describes the design and test procedure for the QCSEE (quiet, clean, short-haul experimental engine). The engines designed for the YC-14 and YC-15 STOL aircraft, both use a very low fan pressure ratio to keep jet-flap noise about 3 dB below total system noise. Other noise reducing features discussed are the low tip speed fans and a carefully selected number of fan blades and vanes with adequate spacing between them. Attention is also given to the development of a low emissions combustor, and reduction of fan frame weight, through the use of graphite/epoxy material. The YC-15 engine also employs variable pitch fans to provide thrust reversal, thus saving weight. Finally, it is noted that the tests have proven that the engines could be configurated to meet the needs of a powered lift system without excessively compromising performance or weight.
Document ID
19790066195
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Ciepluch, C. C.
(NASA Lewis Research Center Quiet, Clean, Short-Haul Experimental Engine Project Office, Cleveland, Ohio, United States)
Willis, W. S.
(General Electric Co., Aircraft Engine Group, West Lynn Mass., United States)
Date Acquired
August 9, 2013
Publication Date
April 1, 1979
Publication Information
Publication: ICAO Bulletin
Volume: 34
Subject Category
Aircraft Propulsion And Power
Accession Number
79A50208
Distribution Limits
Public
Copyright
Other

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