08-March-2006, 10:24 PM
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Senior Member
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Join Date: Mar 2004
Posts: 11,626
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MSNBC, James Oberg: Did Pentagon create orbital space plane? Magazine reports evidence for classified project, sparking some skepticism
Quote:
Speaking on condition of anonymity, sources told MSNBC.com that they believed the concept was unworkable, based on principles of rocket design. One source said the mothership would be flying much too slow and too low for a space plane to reach orbital speed after release.
[...]
"Boron-based fuels were the white hope of the 1950s because they have about 140 percent the energy/weight ratio of kerosene," the expert advised MSNBC.com by e-mail. "The B-70 and F-108 were designed to use them, and production plants were built. But when they actually tested the stuff, it turned out to produce combustion products that were liquid and destroyed the engines.
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