The first of three X-43A hypersonic research aircraft was mated to its modified Pegasus® booster rocket in late January at NASA's Dryden Flight Research Center, Edwards, CA.
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The first of three X-43A hypersonic research aircraft was mated to its modified Pegasus® booster rocket in late January at NASA’s Dryden Flight Research Center, Edwards, CA.January 22, 2001NASA Photo / Tom Tschida› X-43A Project Description