x-59

NASA's X-59 Reaches Speed and Altitude Milestones Ahead of First Quiet Supersonic Flights

NASA's X-59 research plane reached Mach 1.4 and 55,000 feet in a test flight on Friday, following an earlier supersonic flight on June 5. The milestones bring the aircraft closer to the Quesst mission, which will see it fly over US communities to gather public feedback on its quiet sonic thump.