Hypersonic drone that can travel FIVE times the speed of sound hits major milestone | World | News
A reusable hypersonic jet that can reach a staggering Mach 5 (or five times the speed of sound) has completed its second successful test flight. The Talon-A2 is an unmanned, aircraft built by California-based firm Stratolaunch, founded by the late Microsoft co-founder Paul Allen in 2011. The autonomous drone is seen as a key milestone…