NASA’s Quiet Supersonic Jet Just Hit Another Major Milestone
SMRTR summary
NASA's X-59 quiet supersonic jet reached Mach 1.4 during a June 12 test flight, flying at 55,000 feet — the same speed and altitude it will use when flying over U.S. communities to measure public reaction. Built by Lockheed Martin for $247.5 million, X-59 is designed to replace the loud sonic boom with a softer "thump," potentially lifting the longstanding ban on supersonic flights over land.
SMRTR provides this summary for quick context. The original article belongs to Reddit.
Read the original article