FOX NEWS: NASA's quieter supersonic plane gets final assembly approval

NASA's quieter supersonic plane gets final assembly approval



NASA announced that the final assembly of its supersonic X-plane, the X-59 Quiet SuperSonic Technology (QueSST), has been approved. The decision, known as Key Decision Point-D (KDP-D), was the last hurdle before the QueSST aircraft makes its first flight in 2021.