#x-59 Tech News.
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NASA's x-59 quiet supersonic aircraft reached mach 1.1 during its first supersonic flight on june 5, 2026, flying 81 minutes at 43,400 feet with test pilot jim less. The flight marked a key step in quesst mission testing and demonstrated the x-59's ability to operate in supersonic flight.
NASA's X-59 aircraft reached Mach 1.1 (713 mph) on June 5 during an 81-minute flight from Edwards Air Force Base, breaking the sound barrier for the first time. The experimental jet is designed to produce a sonic thump instead of a loud boom, potentially enabling commercial supersonic flight over land.
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