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San Antonio-class Amphibious Transport Dock

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The San Antonio-class is the United States Navy's new primary class of amphibious transport dock (LPD) in the beginning of the 21st century. It is replacing the older Austin, Cleveland, and Trenton-class LPDs as well as the Anchorage-class dock landing ships, Newport-class tank landing ships, and one class that has already been retired, the Charleston-class amphibious cargo ships.

Twelve San Antonios are planned for service, although only eight of them are currently in active service. The average cost is US$1.6bn, compared to an original target of $890m. As of May 2013 seven are in service.


  • Type: Amphibious Transport Dock (Hull designation symbol LPD)
  • Service Period: 2006-
  • Characteristics
    • Length: 684 feet (208.48 meters)
    • Beam: 105 feet (32 meters)
    • Draft: 23 feet (7.01 meters) - Full Load
    • Displacement: 24,900 tons
  • Complement: 699 (66 officers and 633 enlisted)
  • Crew: 361 (28 officers and 333 enlisted)
  • Propulsion: Four sequentially turbocharged marine Colt-Pielstick diesel engines, two shafts, 41,600 shp
  • Speed: 24 knots (44.45 km/hr)
  • Sensor Suite/EW Suite/Countermeasures
    • AN/SPQ-9B Fire Control Radar
    • AN/SLQ-25 Nixie Torpedo Countermeasures Suite
    • AN/SLQ-32(V)3 Electronic Warfare Suite
    • AN/SPS-48G Air Search Radar
  • Armament:
    • 2 x 30mm Bushmaster II guns
    • 2 x 8-cell Mk.41 VLS (quad packed with RIM-162 ESSM missiles)
    • 2 x 21-cell Mk.49 Rolling Airframe Missile Launchers
    • 8 x twin mount M2 Browning machine guns
  • Aircraft Carried: 4 x CH-46 Sea Knights, or 4 x MV-22B Ospreys
  • Boats & Landing Craft: 2 x LCACs (air cushion); or 1 x LCU (conventional), 14 x Expeditionary Fighting Vehicles/AAVs

Unit Run[edit]

  • USS San Antonio (LPD-17)
  • USS New Orleans (LPD-18)
  • USS Mesa Verde (LPD-19)
  • USS Green Bay (LPD-20)
  • USS New York (LPD-21)
  • USS San Diego (LPD-22)
  • USS Anchorage (LPD-23)
  • USS Arlington (LPD-24)
  • USS Somerset (LPD-25)
  • USS John P. Murtha (LPD-26)
  • USS Portland (LPD-27)
  • USS Fort Lauderdale (LPD-28)
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