Published on
Oct 13, 2026
Mach 3 SR-71 Blackbird Was Slow Compared to This: NASA Had a Mach 9.6 X-43A Hypersonic Gas Hydrogen-fed Scramjet That ...
Summary and Key Points: Expert Sean Spoonts revisits NASA’s Hyper-X program, an eight-year, $230 million program run by Langley and Dryden that produced the 12-foot X-43A, a hydrogen-fed scramjet lifting body built by MicroCraft, Boeing Phantom Works, and …
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