Atlas II was a member of the Atlas family of launch vehicles, which evolved from the successful Atlas missile program of the 1950s. The Atlas II was a direct evolution of the Atlas I, featuring longer first-stage tanks, higher-performing engines, and the option for strap-on solid rocket boosters. It was designed to launch payloads into low Earth orbit, geosynchronous transfer orbit or geosynchronous orbit. Sixty-three launches of the Atlas II, IIA and IIAS models were carried out between 1991 and 2004; all sixty-three launches were successes, making the Atlas II a highly reliable space launch system. The Atlas line was continued by the Atlas III, used between 2000 and 2005, and the Atlas V, which is still in use as of 2025.
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Atlas III in the context of Cape Canaveral Launch Complex 36
Launch Complex 36 (LC-36) is a launch complex located at the Cape Canaveral Space Force Station in Florida. Located south of the Missile Row launch range, the complex originally consisted of two pads—designated LC-36A and LC-36B—to support the flights of Atlas launch vehicles equipped with a Centaur upper stage. From the 1960s to the 1980s, LC-36 was used by NASA and the United States Air Force to launch many payloads from the Atlas-Centaur and its derivatives, including the Pioneer, Surveyor, and Mariner probes. During the late 1980s, LC-36B was also used to launch the Atlas G, and General Dynamics (and later Lockheed Martin) modified the two pads to support the larger Atlas I, Atlas II, and Atlas III throughout the 1990s and early 2000s.
Following the Atlas program's relocation to Space Launch Complex 41 (SLC-41) in 2005, LC-36 stood vacant until Blue Origin acquired the lease in 2015 for use by their heavy-lift New Glenn rocket. The company made extensive modifications to the complex during this time, including demolishing 36A and 36B to build one large pad in place, as well as integrating the neighboring Launch Complex 11 (LC-11) into the facility. Following this large-scale renovation, the new era of LC-36 commenced with the maiden flight of New Glenn in January 2025.
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