to England (September–December 1953) and twice to North Africa (November 1955 – January 1956 and January – March 1957), in keeping with its mission of global bombardment and air refueling operations. Two wing 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 AFB, Maine, to RAF Fairford in 4:45 hours. In May 1959, the 305th Bomb Wing with B-47s was reassigned to Bunker Hill AFB, later renamed Grissom AFB, Indiana. The 809th AD inactivated on 1 June 1959 with the reassignment of the 305th Bomb Wing. Alert detachment operations Although control of MacDill AFB would pass from SAC to TAC in the early 1960s, SAC continued to maintain a periodic presence at MacDill in the form of dispersal alert operations of B-52 and KC-135 aircraft from other SAC bombardment wings, using the extant SAC Alert Facility at MacDill. These operations continued until the early 1980s. Air Defense Command / Aerospace Defense Command Air Defense Command (ADC) became a major tenant unit at MacDill in 1954 with the establishment of a mobile radar station on the base to support the permanent ADC radar network in the United States sited around the perimeter of the country. This deployment was projected to be operational by mid-1952. Funding, constant site changes, construction, and equipment delivery delayed deployment. This site at MacDill, designated as M-129 became operational on 1 August 1954 when the 660th Aircraft Control and Warning Squadron was assigned to the base by the 35th Air Division. MacDill became the first operational mobile radar under the first phase of the program. The 660th ACWS initially used an AN/MPS-7 radar, and by 1958, MacDill also had AN/GPS-3 and AN/MPS-14 radars. During the following year, the AN/GPS-3 and AN/MPS-7 sets were replaced by AN/FPS-20A search and AN/FPS-6B height-finder sets. During 1961, MacDill AFB joined the Semi Automatic Ground Environment (SAGE) system, initially feeding data to Site DC-09 at Gunter AFB, Alabama. After joining SAGE, the squadron was redesignated as the 660th Radar Squadron (SAGE) on 1 March 1961. In 1961, an AN/FPS-7B assumed search duties and an additional height-finder radar was added in the form of an AN/FPS-26. In 1963, an AN/FPS-90 height-finder radar replaced the AN/FPS-6B, and on 31 July 1963 the site was redesignated as NORAD ID Z-129. In addition to the main