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Wichita-class Fleet Replenishment Oiler

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Wichita-class fleet replenishment oilers comprised a class of seven replenishment oilers used by the United States Navy from the late 1960s to the mid-1990s. During this time the ships were commissioned naval auxiliaries with the hull classification AOR. The ships were designed for rapid underway replenishment using both connected replenishment and vertical replenishment. The ships could carry 160,000 barrels of petroleum fuel, 600 tons of munitions, 200 tons of dry stores and 100 tons of refrigerated stores. The original concept was that the AORs would serve the same function for the anti-submarine carrier (CVS) groups that the larger, faster Sacramento-class AOEs did for the attack carrier (CVA) groups.

With the reduction in the U.S. Navy fleet, these ships were all decommissioned and stricken from the Naval Vessel Register (NVR) in the 1990s.


  • Type: Fleet Replenishment Oiler (Hull designation AOR)
  • Service Period: 1969-1996
  • Characteristics
    • Length: (Waterline): 640 feet (195.07 meters)
    • Length: (Overall): 659 feet (200.86 meters)
    • Beam: 96 feet (29.261 meters)
    • Draft: 35 feet (10.67 meters)
    • Displacement: 13,533 tons (Standard); 40,151 tons (Full Load)
  • Crew: 497 (34 officers and 463 enlisted)
  • Propulsion: 3 x boilers, 2 x steam turbines, 2 x shafts, 32,000 shp (24 MW)
  • Rang: 6,500 nautical miles (12,038 kilometers) at 20 knots (37.04 km/h)
  • Speed: 25 knots (46.3 km/h)
  • Sensor Suite:
    • AN/SPS-10 Surface Search Radar
    • LN-66 Navigation Radar
  • Countermeasures:
    • AN/SLQ-32(V)3 Electronic Warfare Suite
    • Mk.137 6-barrelled decoy launchers x 4
  • Armament
    • 4 x 3"/50-caliber Mk.22 anti-aircraft guns (2x2) - replaced by 2 x Mk.29 NSSM Launchers
    • 2 x 20mm Vulcan Phalanx CIWS
  • Aircraft Carried: 2 x CH-46E Sea Knight maritime helicopters

Unit Run[edit]

  • USS Wichita (AOR-01)
  • USS Milwaukee (AOR-02)
  • USS Kansas City (AOR-03)
  • USS Savannah (AOR-04)
  • USS Wabash (AOR-05)
  • USS Kalamazoo (AOR-06)
  • USS Roanoke (AOR-07)
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