In 1998, the last SR-71 Blackbird landed for the last time, but there’s reason for celebration: Lockheed Martin’s Skunk Works is planning a more advanced version, Blackbird 2.0 if you will. The SR-72 will use a hypersonic engine that combines turbines and ramjets, and Lockheed says it will be TWICE as fast as the original SR-71 for a speed of Mach 6. Stay tuned!!
