'Son of Blackbird': Meet the SR-72, Lockheed's planned new hypersonic spy plane
Monday, November 4, 2013 - 17:01
in Mathematics & Economics
Lockheed Martin Corp has unveiled plans for a hypersonic spy plane that could fly at Mach 6, twice as fast as its famed SR-71 Blackbird, and said a missile demonstrating the new technology could fly as early as 2018.