6 March 1998: Secretary of Defense William S. Cohen approved the permanent retirement of the Lockheed SR-71A “Blackbird” Mach 3+ strategic reconnaissance aircraft.
With that decision, the U.S. Air Force would retire two SR-71A models (returned to active duty in 1995), an SR- 71A and the SR-71B trainer model on loan to NASA, and two from returnable storage.
© 2015, Bryan R. Swopes