Speed is the New Stealth: The SR-72 Challenges the Future at Mach 6

The popular image of a stealthy, fifth-generation fighter and subsonic drone-dominated future in military aviation appears to have a serious challenge at hand. On 1 November 2013, Lockheed Martin’s ‘Skunk Works’ development department unveiled the ‘SR-72’ project designed to replace the retired Mach 3 capable SR-71 Blackbird spy plane.

See the full article at rusi.org