The Lockheed '''SR-71 Blackbird''' was a [[Mach]] 3+ reconnaissance aircraft designed by Clarence L "Kelly" Johnson at Lockheed's "[[Skunk Works]]" 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. | The Lockheed '''SR-71 Blackbird''' was a [[Mach]] 3+ reconnaissance aircraft designed by Clarence L "Kelly" Johnson at Lockheed's "[[Skunk Works]]" 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. |