More than two decades ago, Concorde, the only successful supersonic airliner, was retired for good. But Friday, at Mojave Air & Space Port (KMHV) in California—where the Bell X-1 broke the sound barrier for the first time in 1947—another supersonic aircraft made its maiden voyage.
Boom Supersonic’s XB-1 jet demonstrator did not reach supersonic speeds during the test flight. But the inaugural flight of the aircraft—a precursor to Boom’s supersonic, sustainable aviation fuel-powered Overture—marks a key milestone nonetheless.
