Aug 14 1993
From The Space Library
Under its High-Speed Research Program (HSRP), which began in 1990, NASA was doing basic research on developing a "clean" supersonic air-liner, including preliminary studies of the potential of new materials. As part of this work, NASA was studying the atmospheric effects of supersonic aircraft in the stratosphere. The third report from this study, still in draft form and unlikely to he published in 1993, promised to dampen the optimism of previous research. (New Scientist, Aug 14/93)
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