In an article full of marketing speak, NASA only promises a quieter sonic thump: https://www.nasa.gov/news-release/nasa-lockheed-martin-reveal-x-59-quiet-super

In an article full of marketing speak, NASA only promises a quieter sonic thump: https://www.nasa.gov/news-release/nasa-lockheed-martin-reveal-x-59-quiet-supersonic-aircraft/ https://www.nasa.gov/news-release/nasa-lockheed-martin-revea... "The X-59 is expected to fly at 1.4 times the speed of sound, or 925 mph. Its design, shaping and technologies will allow the aircraft to achieve these speeds while generating a quieter sonic thump." Further, if the atmospheric conditions aren't right, the cutely named "thump" will turn into a boom again. I suppose if Qatar gifts Trump the first golden supersonic private jet, it'll also pay fines for "thumps" exceeding the limits.