Changes

A Mach 3+ reconnaissance aircraft designed by Clarence L "Kelly" Johnson at Lockheed's "Skunkworks" plant in the late 1950's, the Blackbird served until 1989.  In 1994, the program was reactivated under NASA, and the aircraft continued to fly until 1999.

A Mach 3+ reconnaissance aircraft designed by Clarence L "Kelly" Johnson at Lockheed's "Skunkworks" plant in the late 1950's, the Blackbird served until 1989.  In 1994, the program was reactivated under NASA, and the aircraft continued to fly until 1999.