NASA's experimental X-43A didn't have a pilot and couldn't fly independently, but its blisteringly high speeds showed that hypersonic flight was possible.
NASA's Mach 9.6 X-43A 'Hypersonic Scramjet' Is Still An Engineering Marvel
Slash Gear - 15 Oct 2025 22:15
NASA's experimental X-43A didn't have a pilot and couldn't fly independently, but its blisteringly high speeds showed that hypersonic flight was possible.
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