Kit #AA2065. 1/72 scale. Highly-detailed resin kit with decals. In October 1945, the U.S. Army issued supersonic missile requirement to the industries who designed the military missiles technical papers for Nazi Germany. In 1946, Convair submitted several proposals and was received funding for the MX-774 rocket study. In 1949, when the Soviet Union detonated its first nuclear weapon, the U.S.A.F. gave highest priority to Convair to develop a more conventional long range nuclear armed missile. Convair suggested a series of test articles, a 16 single-stage test-bed that designated X-11 (later changed to Atlas A), and 13 one-and-one-half stage prototypes which designated X-12 (later changed to Atlas B, then XB-65 as a bomber category, and then XSM-16 as the strategic missile). The first launch of the Atlas A was in 1957, which was marked by 5 failures from 8 launches. The first launch of the Atlas B was in 1958, which had 4 failures from 10 launches. In 1959, Atlas D (CGM-16D) ICBM was officially declared operational and taken over by the Strategic Air Command. It entered the U.S. Air Force first ICBM squadron and used as a space launcher until 1967.