Boeing RB-52B Stratofortress 52-8711, first operational B-52, at March AFB 1965 Published on June 27, 2012 in 29 June 1955Full resolution (1024 × 714) Next → Boeing RB-52B-15-BO Stratofortress 52-8711, the first operational B-52, at March AFB, 1965. (U.S. Air Force)