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Space Shuttle Orbiter improved auxiliary power unitThe Space Shuttle Orbiter Auxiliary Power Unit subsystem has operated successfully on three vehicles by meeting mission requirements and has proven the design for space operation. The current Auxiliary Power Unit (APU) operational life is limited to 12 missions and the APU turnaround between flights is longer than originally anticipated. The Improved APU objective is to increase life to 50 missions, reduce the three - APU subsystem vehicle weight by 140 lbs., and reduce turnaround time. The design changes incorporated into the Improved APU and the associated development testing are described.
Document ID
19840021896
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hagemann, D. W. (Sundstrand Energy Systems Rockford, IL, United States)
Wicklund, L. L. (Sundstrand Energy Systems Rockford, IL, United States)
Loken, G. R. (Sundstrand Energy Systems Rockford, IL, United States)
Baughman, J. R. (Sundstrand Energy Systems Rockford, IL, United States)
Lance, R. J. (Sundstrand Energy Systems Rockford, IL, United States)
Date Acquired
August 12, 2013
Publication Date
February 1, 1984
Publication Information
Publication: APL The 1984 JANNAF Propulsion Meeting, Vol. 2
Subject Category
Spacecraft Propulsion And Power
Accession Number
84N29965
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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