Baseline 3
USS Princeton (CG 59)
USS Normandy (CG 60)
USS Monterey (CG 61)
USS Chancellorsville (CG 62)
USS Cowpens (CG 63)
USS Gettysburg (CG 64)

Baseline 3 includes the AN/SPY-1B radar and AN/UYQ-21 consoles. The lighter SPY-1B radar, with improved radiating characteristics, was substituted for SPY-1A, and new computers (UYK-43 and UYK-44 in place of UYK-7) are employed. CG 59 was the Navy's first cruiser equipped with the AN/SPY-1B radar system, which provided a significant improvement in the detection capabilities of the AEGIS Weapons System. This radar system incorporates significant advances over earlier radars, particularly in its resistance to enemy Electronic Countermeasures (ECM). With the SPY-1B radar and the ship's MK 99 Fire Control System, the ship can guide its Standard Missile to intercept hostile aircraft and missiles at extended ranges. In 1996, CG 61 became the first of this group to be upgraded with the SPY-1D(V) radar and received a combat system upgrade including all-new combat system computers, consoles, and displays. The upgrade will permit future installation of such planned upgrades as Cooperative Engagement Capability, Theater Ballistic Missile Defense capability, and new versions of the Standard missile.