A "supersonic jet" refers to an aircraft that can travel faster than the speed of sound. It moves so quickly that it creates a loud noise called a sonic boom. Full definition
By using as sources supersonic jets of hydrogen or helium containing small concentrations of heavier molecules we have been able to obtain molecular beams with kinetic energies of the heavy molecules well into the range above I electron volt. (science.sciencemag.org)
After the demise of the Concorde supersonic jet in 2003, flight times have stayed relatively constant — but Blake Scholl, founder and CEO of Boom Technology, says air travel could get a speed boost in just a few years. (cnbc.com)
Meanwhile, in his spare time, Musk draws up plans for revolutionary transport systems, such as the Hyperloop and VTOL supersonic jet aircraft known as the Musk electric jet. (visualcapitalist.com)