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NASA’s X-59 Flies Supersonic for the First Time
已确认可信度 85%Happened as dated, per nasa.gov[1][3][4]: the X-59 "marked a major milestone Friday, June 5, when it flew faster than the speed of sound for the first time."
The quiet supersonic demonstrator reached Mach 1.1 and 43,400 feet on an 81-minute flight from Edwards Air Force Base, the first time it exceeded the speed of sound. A NASA F-15 chase plane flew alongside, its own booms drowning out anything the X-59 made.
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