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McDonnell Douglas/NASA Langley propfan ADVANCED TACTICAL TRANSPORT (1989)

flateric

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Found at NTRS

MULTIPLE APPLICATION PROPFAN STUDY (MAPS) ADVANCED TACTICAL TRANSPORT
F. C. Newton, R. H. Liebeck, G. H. Mitchell, A. Mooiweer,
M. M. Platte, T. L. Toogood, and R. A. Wright
Douglas Aircraft Company
McDonnell Douglas Corporation
Prepared for National Aeronautics and Space Administration
Lewis Research Center Cleveland, Ohio 44135
Contract NAS 3-24348

"This study was conducted to ascertain the potential benefits of a propfan propulsion system applied to a
blended wing/body military tactical transport."
 

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URL for the report above:

http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19890009929_1989009929.pdf

This study was conducted to ascertain potential benefits of a propfan propulsion system application to a blended wing/body military tactical transport. Based on a design cruise Mach no. of 0.75 for the design mission, the results indicate a significant advantage in various figures of merit for the propfan over those of a comparable technology turbofan. Although the propfan has a 1.6 percent greater takeoff gross weight, its life cycle cost is 5.3 percent smaller, partly because of a 27 percent smaller specific fuel consumption. When employed on alternate missions, the propfan configuration offers significantly improved flexibility and capability: an increase in sea level penetration distance of more than 100 percent, or in time-on-station of 24 percent, or in deployment payload of 38 percent.
 

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