Sangamon class frigate

A quartet of Sangamon-class frigates led by destroyer APNS Towers (DDG-09)

The Sangamon-class frigates were American People's Navy warships, originally laid down as ocean escorts (formerly called destroyer escorts), but were all redesignated as frigates on June 30th, 1975 in the APN 1975 ship reclassification and their hull designation changed from DE to FF.

A sub-class of the Sangamon-class was built, commonly referred to as the Altahama-class. The primary differences were slightly different arrangement of the "Officer's Country" staterooms with additional staterooms in the 01 level instead of the open deck between the boat decks. The stateroom on the port side under the bridge was designated as a "flag" stateroom, with the additional staterooms for flag staff when serving as a flagship.

The Sangamon class frigates are the AAO version of the OTL Knox class frigate

Specifications

• Type: ASW Frigate
• Service Period: 1969-2004
• Characteristics:
  • Length: 438 feet (133.5 meters)
  • Beam: 46 feet 9 inches (14.25 meters)
  • Draft: 24 feet 9 inches (7.54 meters)
  • Displacement:
• Crew: 257 (17 officers and 240 enlisted)
• Propulsion: 2 x V2M 1200psi boilers, 1 x D-type steam turbine, 1 x shaft, 35,000 shp (22,500 kW)
• Range: 5,500 nautical miles (10,186 kilometers) at 15 knots (27.78 km/h)
• Speed: 27 knots (50 km/h)
• Sensor Suite:
  • AN/SPS-40 Air Search Radar
  • AN/SPS-67 Surface Search Radar
  • Mk.68 Gun Fire Control System
  • Mk.114 ASW Fire Control System
  • Mk.115 Missile Fire Control System
  • AN/SQS-26 Sonar
  • AN/SQS-35 Variable Depth Sonar
• Countermeasures:
  • AN/SLQ-25 Nixie Torpedo Countermeasures Suite
  • AN/SLQ-32 Electronic Warfare Suite
  • Mk.36 SBROC
• Armament:
  • 1 x 5"/54-caliber Mk.42 lightweight naval gun
  • 1 x 8-cell Mk.16 Missile Launcher (fires RUR-5 ASROC and RGM-84 Harpoon)
  • 1 x Mk.25 Sea Sparrow Missile Launcher
  • 4 x 12.75" torpedo tubes (fires Mk.46 torpedoes)
  • 1 x 20mm Phalanx CIWS
• Aircraft Carried: 1 x Bloomfield HF SH-2/62 ASW Helicopter (later SH-2/93f)
• Aviation Facilities: Helicopter Pad and Enclosed Hangar

Unit Run

American People's Navy

• APNS Sangamon (FF-1052) - sunk as target
• APNS Brazos (FF-1053) - scrapped
• APNS Elkhorn (FF-1054) - scrapped
• APNS Navasota (FF-1055) - sunk as target
• APNS Ogeechee (FF-1056) - scrapped
• APNS Guadalupe (FF-1057) - sold to Mexico, renamed ARM Gildardo Magaña (F-217)
• APNS Chikaskia (FF-1058) - scrapped
• APNS Iditarod (FF-1059) - Grant aid to Mexico as spare parts hulk
• APNS Navarro (FF-1060) - scrapped
• APNS Allegheny (FF-1061) - scrapped
• APNS Mavasota (FF-1062) - sold to Mexico, renamed ARM Almirante Francisco Javier Mina (F-214)
• APNS Youghiogheny (FF-1063) - scrapped
• APNS Tuckasegee (FF-1064) - sold to Mexico, renamed ARM Miguel Zugastegui (F-216)
• APNS Whitewater (FF-1065) - sold to Mexico, renamed ARM Ignacio Allende (F-211)
• APNS Roubidoux (FF-1066) - sold to Mexico, renamed ARM Mariano Abasolo (F-212)
• APNS Aucillia (FF-1067) - scrapped
• APNS Blackwater (FF-1068) - scrapped
• APNS Vermillion (FF-1069) - scrapped
• APNS Manitowoc (FF-1070) - sold to Mexico, renamed ARM Vicente Guerrero (F-215)
• APNS Potowomut (FF-1071) - sold to Mexico, renamed ARM Rubén Jaramillo (F-218)
• APNS Yellowstone (FF-1072) - scrapped
• APNS Canisteo (FF-1073) - sold to PRC, renamed PLANS Peihai (558)
• APNS Ottauquechee (FF-1074) - sunk as target
• APNS Amargosa (FF-1075) - scrapped
• APNS Humbolt (FF-1076) - scrapped
• APNS Pecos (FF-1077) - scrapped
• APNS Altahama (FF-1078) - scrapped
• APNS Clearwater (FF-1079) - sold to East Japan as spare parts hulk
• APNS Muskegon (FF-1080) - sold to PRC as spare parts hulk
• APNS Dowagiac (FF-1081) - sold PRC as PLANS Tungkuan (560)
• APNS Firesteel (FF-1082) - sold to East Japan as spare parts hulk
• APNS Elokomin (FF-1083) - sold to PRC as PLANS Shantou (561)
• APNS Greenwood (FF-1084) - scrapped
• APNS Maquoketa (FF-1085) - scrapped
• APNS Chippewa (FF-1086) - sold to PRC as PLANS Foshan (559)
• APNS Suwannee (FF-1087) - sold to PRC as PLANS Chiangmen (562)
• APNS Androscoggin (FF-1088) - sold to PRC as PLANS Chaoching (563)
• APNS Cumberland (FF-1089) - scrapped
• APNS Verdigris (FF-1090) - scrapped
• APNS Escatawpa (FF-1091) - Sold to Mexico as spare parts hulk
• APNS Pascagoula (FF-1092) - scrapped
• APNS Choctawhatchee (FF-1093) - scrapped
• APNS Oswegatchie (FF-1094) - Sold to Mexico, renamed ARM Guadalupe Victoria (F-213)
• APNS Taughannock (FF-1095) - scrapped
• APNS Irondequoit (FF-1096) - sold to PRC as PLANS Tzukung (564)
• APNS Scioto (FF-1097) - scrapped

Japanese People's Naval Self-Defense Force

• JPS Ootori (FF-299)
• JPS Hato (FF-300)
• JPS Tomozuru (FF-301)
• JPS Fushimi (FF-302)
• JPS Karatsu (FF-303)
• JPS Sumida (FF-304)
• JPS Unebi (FF-305)
• JSP Mishima (FF-306)