The "Darkstar" Lockheed Martin's SR-72, also known as the Son of Blackbird, is hypersonic (Mach 6 and above), unmanned aircraft . #LeakedFootage

Name: The "Darkstar" Lockheed Martin's SR-72, also known as the Son of Blackbird, is hypersonic (Mach 6 and above), unmanned aircraft . #LeakedFootage
Channel: A L I
Description: The "Darkstar" Lockheed Martin's SR-72, also known as the Son of Blackbird, is hypersonic (Mach 6 and above), unmanned aircraft . #LeakedFootage