 "Columbus" was converted at Puget Sound Naval Shipyard beginning in September 1959 and recommissioning as CG-12 on December 1, 1962. and were also proposed for conversion to CG-13 and CG-14, but those plans were dropped because of the high cost of the conversion and capabilities of newer guided missile frigates.The weapon systems carried included the Mk 77 missile fire-control system with four AN/SPG-49 fire-control radars and two Mk 12 twin launchers for their armament of 104 Talos long-range surface-to-air missiles, one forward and one aft.These cruisers also carried an armament of 84 shorter-ranged Tartar missiles launched from two Mk 11 twin launchers, one to the port of and one to the starboard of the cruiser's main superstructure.