The hypersonic scramjet test vehicle flew at Mach It was 3 metres long and was accelerated by a Pegasus rocket to Mach 5 before release to be accelerated by its scramjet engine to Mach (over 12 144 km/h).
(concept/fantasy aircraft) Sonda Aerospace’s is a twin-engine fifth generation super-manoeuvrable, stealth fighter aircraft. In keeping with SA’s concept for air superiority fighters, it is design to provide maximum s.
Super-fast successor to legendary "Blackbird" stealth plane unveiled - Yahoo News UK. Scramjet engine- project ran into US political hoohaa Sequestration Budget Cuts. Plan WAS scale demonstrator demonstrator Entry into DON'T HOLD YOUR BREATH.