The prohibition on sonic booms mysteriously appeared when it came out neither the Lockheed nor Boeing SST would ever become a reality, leading to the embarrassi

The prohibition on sonic booms mysteriously appeared when it came out neither the Lockheed nor Boeing SST would ever become a reality, leading to the embarrassing situation of the only supersonic airliner being a British-French collaboration. NASA's X-59 project is aiming for a very low sonic boom