Virginia-class Nuclear Attack Submarine

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.

Specifications

 * 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)

Block I

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

Block II

 * 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

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

Block IV

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

Block V

 * USS Unnamed (SSN-802) - planned for construction
 * USS Unnamed (SSN-803) - planned for construction
 * USS Unnamed (SSN-804) - planned for construction
 * USS Unnamed (SSN-805) - planned for construction
 * USS Unnamed (SSN-806) - planned for construction
 * USS Unnamed (SSN-807) - planned for construction
 * USS Unnamed (SSN-808) - planned for construction
 * USS Unnamed (SSN-809) - planned for construction
 * USS Unnamed (SSN-810) - planned for construction
 * USS Unnamed (SSN-811) - planned for construction

Block VI

 * 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

 * 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)

Improved Virginia-class

 * USS Unnamed (SSN-844)
 * USS Unnamed (SSN-845)
 * USS Unnamed (SSN-846)
 * USS Unnamed (SSN-847)
 * USS Unnamed (SSN-848)
 * USS Unnamed (SSN-849)
 * USS Unnamed (SSN-850)
 * USS Unnamed (SSN-851)
 * USS Unnamed (SSN-852)
 * USS Unnamed (SSN-853)
 * USS Unnamed (SSN-854)
 * USS Unnamed (SSN-855)
 * USS Unnamed (SSN-856)
 * USS Unnamed (SSN-857)