Belknap-class Guided Guided Missile Cruiser

The Belknap-class guided missile cruiser was a class of single-ended guided missile cruisers (their missile armament was installed only forward, unlike "double-ended" missile cruisers with missile armament installed both forward and aft) built for the United States Navy during the 1960s. They were originally designated as DLG frigates (destroyer leaders; the USN use of the term frigate from 1950 to 1975 was intended to evoke the power of the sailing frigates of old), but in the 1975 fleet realignment, they were reclassified as guided missile cruisers (CG). In the late 1990s, a trio of retired Belknap-class cruisers were sold to Mexico.

Original Specifications

 * Type: Guided Missile Cruiser (Hull designation symbol CG)
 * Service Period: 1964-1996 (USN), 2004- (Mexican Navy)
 * Characteristics
 * Length: 547 feet (166.73 meters)
 * Beam: 55 feet (16.77 meters)
 * Draft: 29 feet (8.84 meters)
 * Displacement: 7,930 tons (8,057 metric tons)
 * Crew: 477 (27 officers and 450 enlisted)
 * Propulsion: four 1200 psi (8300 kPa) boilers, two geared steam turbines, two shafts. 85,000 shp (63,384 kW)
 * Range:
 * Speed: 32 knots (59.27 km/h)
 * Sensor Suite:
 * AN/SPS-10 surface search RADAR
 * AN/SPS-48 3D air search radar
 * AN/SPS-49 2D air search radar
 * AN/SPG-55 Terrier missile fire control radar x 2
 * AN/SQS-26 SONAR
 * Countermeasures
 * AN/SLQ-25 Nixie torpedo countermeasures suite
 * AN/SLQ-32 Electronic Warfare Suite
 * Mk.36 SBROC
 * NATO Seagnat
 * Armament
 * 1 x Mk.42 5"/54-caliber lightweight naval gun
 * 2 x Mk.22 3"/50-caliber dual purpose naval gun
 * 1 x Mk.10 Mod 7 Terrier Missile Launcher (fires RIM-2 Terrier SAMs, later fires RIM-66 Standard-1 and RIM-67 Standard-2 SAMs)
 * 2 x Mk.141 Harpoon SSM Launchers
 * 2 x 20mm Phalanx CIWS
 * 2 x Mk.32 12.75" triple fire torpedo tubes

New Threat Upgrade

 * Type: Guided Missile Cruiser
 * Service Period: 1964-1996 (USN), 2004- (Mexican Navy)
 * Characteristics
 * Length: 547 feet (166.73 meters)
 * Beam: 55 feet (16.77 meters)
 * Draft: 29 feet (8.84 meters)
 * Displacement: 7,930 tons (8,057 metric tons)
 * Crew: 477 (27 officers and 450 enlisted)
 * Propulsion: 4 x 1200 psi (8300 kPa) boilers, 2 x geared steam turbines, 2 x shafts (85,000 shp (63,384 kW))
 * Speed: 32 knots (59.264 km/h)
 * Sensor Suite
 * AN/SYR-1 Communications Tracking Set
 * AN/SYS-2(V)1 Integrated Automatic Detection and Tracking System
 * AN/SPQ-9B Fire Control Radar
 * AN/SPS-48E 3D Air Search Radar
 * AN/SPS-49(V)5 2D Air Search Radar
 * AN/SPG-53F Gun Fire Control Radar
 * AN/SPG-55B Missile Fire Control Radar
 * Mk.14 Weapons Direction System
 * Advanced Combat Direction System
 * Radar Environmental Simulator System
 * Countermeasures:
 * AN/SLQ-25 Nixie Torpedo Countermeasures Suite
 * AN/SLQ-32 Electronic Warfare Suite
 * AN/SLQ-49 Chaff Buoy Decoy System
 * Mk.36 SBROC
 * Seagnat
 * Armament
 * 1 x Mk.45 5"/54-caliber lightweight naval gun
 * 1 x Mk.16 ASROC Missile Launcher
 * 1 x Mk.26 Twin-Arm Missile Launcher (fires RIM-66 SM-1 and RIM-67 SM-2ER)
 * 1 x Mk.141 Harpoon SSM Launcher
 * 2 x Mk.32 12.75" triple fire torpedo tubes
 * 1 x 20mm Phalanx CIWS
 * Aircraft Carried: 1 x Kaman SH-2F Seasprite

Mexican Navy Specifications

 * Type: Guided Missile Cruiser
 * Service Period: 1964-1996 (USN), 2004- (Mexican Navy)
 * Characteristics
 * Length: 547 feet (166.73 meters)
 * Beam: 55 feet (16.77 meters)
 * Draft: 29 feet (8.84 meters)
 * Displacement: 7,930 tons (8,057 metric tons)
 * Crew: 477 (27 officers and 450 enlisted)
 * Propulsion: 4 x General Electric LM2500-30 gas turbines, 2 x shafts, 100,000 shp
 * Range:
 * Speed: 34.6 knots (64.08 km/h)
 * Sensor Suite:
 * AN/SYR-1 Communications Tracking Set
 * AN/SYS-2(V)1 Integrated Automatic Detection and Tracking System
 * AN/SPQ-9B Fire Control Radar
 * AN/SQQ-28 LAMPS III Shipboard System
 * AN/SPS-48E 3D Air Search Radar
 * AN/SPS-49(V)5 2D Air Search Radar
 * AN/SPG-60 Fire Control Radar
 * AN/SQS-510 Hull Mounted Sonar
 * AN/SQR-501 CANTASS Passive Towed Array Sonar
 * Countermeasures
 * AN/SLQ-25 Nixie Torpedo Countermeasures Suite
 * AN/SLQ-32(V)3 Electronic Warfare Suite
 * AN/SLQ-49 Chaff Buoy Decoy System
 * Mk.36 SBROC
 * Rheinmetall Multi Ammunition Softkill System
 * Armament
 * 1 x Mk.45 Mod 4 5"/62-caliber lightweight naval gun
 * 1 x Mk.41 VLS (fires Tomahawk, SM-2, and VL-ASROC, and ESSM)
 * 2 x Mk.141 Harpoon SSM Launchers (fires RGM-84 Harpoon AShMs)
 * 2 x 12.75" triple fire torpedo tubes
 * 2 x 20mm Phalanx CIWS
 * Aircraft Carried: 1 x CH-148 Cyclone maritime helicopter