Baseline 2
USS Bunker Hill (CG 52)
USS Mobile Bay (CG 53)
USS Antietam (CG 54)
USS Leyte Gulf (CG 55)
USS San Jacinto (CG 56)
USS Lake Champlain (CG 57)
USS Philippine Sea (CG 58)


Baseline 2 consists of the Vertical Launching System, TOMAHAWK Weapon System, and Anti-Submarine Warfare upgrades. The Mk 41 Mod 0 VLS was substituted for the Mk 26 twin-armed launchers and a vertical-launch Tomahawk capability with SWG-3 launch control system was added, as were an improved Link 11 and UYQ-21 displays. CG 52 Bunker Hill was the first unit to feature the revolutionary Vertical Launching System (VLS), a multi-warfare launcher designed to meet the threat of today and the future - well into the 21st century. CG 52 with her VLS offers critical advantages to meet those challenges: larger magazine capacity, higher rate of fire, rapid weapon selection, 360 degree coverage, lower power requirements and higher survivability. VLS can accommodate a variety of missile types. All missiles are stowed vertically in corrugated steel canisters and fired straight-upward in rapid succession. CG 52 has a total VLS capacity of 122 missiles, 61 per launcher. The ship can fire a multiple assortment of air, surface and land attack missiles. Congress initially mandated the omission of SPS-49 radars and the SQQ-28 LAMPS-III datalink in CG 54-56, but gave permission in 1984 to add the equipment. CG 54 and 55 had stand-alone SQR-19 towed sonar arrays and SQS-53A. CG 53 and later substituted a 24 ft Rigid Inflatable Boat (RIB) for the 26 ft motor whaleboat. CG 56 introduced the SQQ-89(V)3 integrated ASW suite, with SQS-53B sonar, SQR-19 towed array, and the Mk 116 Mod 6 UBFCS. All are planned to be updated by 2003 to perform Theater Ballistic Missile Defense (TBMD) missions and to employ the Cooperative Engagement Capability (CEC), at a total cost of $137 million. The electronic engineering systems are also to be updated.