1127. The Next Generation Subsonic Transport
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Paper
Abstract
This paper discusses the current design approach at McDonnell Douglas toward satisfying the market requirements and operating economics for a next-generation commercial subsonic transport.
First, the near-term design objects are discussed. The most significant change in these objectives since design of the current generation of commercial transports is the increased emphasis on reduced fuel consumption.
Second, the development of a configuration to satisfy these objectives is reviewed. Specific design trades addressed include wing geometry studies, advanced technology applications, and fuselage and engine configuration studies.
Finally, the performance and design characteristics of a current study baseline aircraft are reviewed. Study results and conclusions to date indicate that he next-generation transport will probably have the following features:
1. All-new wing design with higher aspect ratios for reduced drag
2. Advance high-lift system for reduced noise and wing area
3. Incorporation of advanced technologies like supercritical wing, composite materials and relaxed static stability to reduce weight and fuel burned
4. Reduced passenger capacity over current wide-body transports to meet market requirements
5. Reduce cruise speed for minimum operating cost
6. Commonality with existing transport aircraft to reduce development costs.
