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Virginia-class Nuclear Attack Submarine

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The Virginia-class, also known as the SSN-774-class, is a class of nuclear-powered fast attack submarines (hull classification symbol SSN) in service with the United States Navy. The submarines are designed for a broad spectrum of open-ocean and littoral missions. They were conceived as a less expensive alternative to the Seawolf-class attack submarines, designed during the Cold War era, and they are planned to replace the older of the Los Angeles-class submarines, twenty of which have already been decommissioned (from a total of 62 built). The class was developed under the codename Centurion, renamed to NSSN (New SSN) later on. The "Centurion Study" was initiated in February 1991. The Virginia-class has also been offered for sale to Australia for the RAN.


  • Type: Nuclear powered fast attack submarine (Hull designation symbol SSN)
  • Service Period: 2004-Present
  • Cost: $2.707 billion USD (FY2014); $50 million/year (operating cost per sub)
  • Characteristics
    • Length: 377 feet (114.91 meters)
    • Beam: 34 feet (10.36 meters)
    • Draft: 32 feet (9.75 meters)
    • Displacement: 7,800 tons
  • Crew: 134
  • Diving Depth: 1,600 feet (487.68 meters)
  • Propulsion: General Electric S9G nuclear reactor, pump jet propulsion
  • Speed: 34 knots (62.97 km/h)
  • Sensor Suite:
    • AN/BPS-16 Surface Search/Navigation Radar
    • AN/BQQ-10 Bow-Mounted Spherical Active/Passive Sonar Array
    • Wide Aperture Lightweight Fiber Optic Sonar Array
    • Low-Cost Conformal Array High Frequency Sonar
    • Low Frequency Towed Array Sonar
    • AN/BVS-1 Photonic Mast x 2
    • AN/BYG-1 Integrated Combat System
  • Countermeasures:
    • AN/BLQ-10 Electronic Support Measures
  • Armament:
    • 6 x 533mm torpedo tubes (fires Mk.48 ADCAP heavyweight torpedoes and UGM-84 Harpoon AShMs)
    • 1 x 12-cell Mk.45 VLS (fires UGM-109 Tomahawk missiles)

Unit Run[edit]

Block I[edit]

  • USS Virginia (SSN-774)
  • USS Texas (SSN-775)
  • USS Hawaii (SSN-776)
  • USS North Carolina (SSN-777)

Block II[edit]

  • USS New Hampshire (SSN-778)
  • USS New Mexico (SSN-779)
  • USS Massachusetts (SSN-780)
  • USS California (SSN-781)
  • USS Mississippi (SSN-782)
  • USS Minnesota (SSN-783)

Block III[edit]

  • USS North Dakota (SSN-784)
  • USS John Warner (SSN-785)
  • USS Illinois (SSN-786)
  • USS Washington (SSN-787)
  • USS Colorado (SSN-788) - fitting out
  • USS Indiana (SSN-780) - fitting out
  • USS South Dakota (SSN-790) - under construction
  • USS Delaware (SSN-791) - under construction

Block IV[edit]

  • USS Vermont (SSN-792) - under construction
  • USS Oregon (SSN-793) - under construction
  • USS Montana (SSN-794) - under construction
  • USS Hyman G. Rickover (SSN-795) - planned for construction
  • USS New Jersey (SSN-796) - planned for construction
  • USS Iowa (SSN-797) - planned for construction
  • USS Massachusetts (SSN-798) - planned for construction
  • USS Idaho (SSN-799) - planned for construction
  • USS Arkansas (SSN-800) - planned for construction
  • USS Utah (SSN-801) - planned for construction

Block V[edit]

  • USS Narwhal (SSN-802) - planned for construction
  • USS Parche (SSN-803) - planned for construction
  • USS Skipjack (SSN-804) - planned for construction
  • USS Triton (SSN-805) - planned for construction
  • USS Nautilus (SSN-806) - planned for construction
  • USS Glenard P. Lipscomb (SSN-807) - planned for construction
  • USS Harder (SSN-808) - planned for construction
  • USS Redfish (SSN-809) - planned for construction
  • USS Archerfish (SSN-810) - planned for construction
  • USS William H. Bates (SSN-811) - planned for construction

Block VI[edit]

  • USS Unnamed (SSN-812)
  • USS Unnamed (SSN-813)
  • USS Unnamed (SSN-814)
  • USS Unnamed (SSN-815)
  • USS Unnamed (SSN-816)
  • USS Unnamed (SSN-817)
  • USS Unnamed (SSN-818)

Block VII[edit]

  • USS Unnamed (SSN-819)
  • USS Unnamed (SSN-820)
  • USS Unnamed (SSN-821)
  • USS Unnamed (SSN-822)
  • USS Unnamed (SSN-823)
  • USS Unnamed (SSN-824)
  • USS Unnamed (SSN-825)
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