deployment of the B-47B. Two of the wing's B-47s set speed records on 28 July 1953 when one flew from RCAF Goose Bay, Labrador, to RAF Fairford, England, in 4:14 hours and the other flew from Limestone Air Force Base, Maine, to RAF Fairford in 4:45 hours. During this period, the 305th also figured prominently in the filming of the 1955 James Stewart and June Allyson film, Strategic Air Command, a portion of which was filmed in and around both the 305th Bombardment Wing and 306th Bombardment Wing areas and their B-47 aircraft at MacDill. In 1955, SAC upgraded the 305th to the B-47E, the major production version of the Stratojet. A major tragedy struck the 305th on the evening of 10 October 1956, when 50 of its personnel returning from a 90-day temporary duty assignment in England on a Military Air Transportation Service flight died when the United States Navy Douglas R6D-1 Liftmaster carrying them disappeared over the Atlantic Ocean. A search discovered wreckage from the aircraft, but no survivors or bodies ever were found. Bunker Hill (Grissom) Air Force Base operations In May 1959, the 305th Bomb Wing (with B-47s) was reassigned to Bunker Hill Air Force Base, Indiana and assumed responsibility for operating the base. Later that same year, the first Boeing KC-135A Stratotankers were assigned to the unit, replacing the propeller-driven KC-97s that had difficulties keeping up with the B-47 jet aircraft. The 305th began transferring its Stratojets to other wings as replacement aircraft in early 1960 in a planned equipment change. In September 1960, the 305th became the second USAF wing selected to receive the Convair B-58A Hustler with the first aircraft received on 11 May 1961. Two months later, the first TB-58A trainer arrived. Three squadrons (364th, 365th and 366th) were equipped with B-58As, and, the wing was declared operationally ready in August 1962. A wing B-58 set five records on 16 October 1963 by flying from Tokyo, Japan, to London, England (via Alaska and Greenland), in 8:35 hours at an average speed of approximately 938 mph (1,510 km/hr). In a little-known attempt to increase the flexibility of the B-58 as a weapons system, experiments were carried out in April 1964 under a program known as Operation Bullseye to see if the B-58 could carry and deliver conventional bombs. In coordination with Republic F-105Ds and McDonnell F-4C/Ds, sorties were flown using B-58s as lead