The Niagara Falls Air Force Missile Site was a Cold War USAF launch complex for Boeing CIM-10 Bomarc surface-to-air missiles. It was operated by the 35th Air Defense Missile Squadron. Equipped only IM-99Bs (46 missiles: solid-state, solid-fuel booster), the site had 48 Model IV "coffin" shelters, after an initial design with a secure area of ~20 acres (8.1 ha) to have 28 shelters (the planned site had additional area for 84 "future shelters"). Launch control for the site's missiles was by central NY's "Hancock Field combined direction-combat center" (CC-01/DC-03) at Syracuse, New York. DC-03 was operational on December 1, 1958; (CC-01 was the "first SAGE regional battle post", beginning operations "in early 1959".)