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[edit | edit source]
- 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 (Block I-IV): 377 feet (114.91 meters)
- Length (Block V-VII): 460 feet (140.21 meters)
- Beam: 34 feet (10.36 meters)
- Draft: 32 feet (9.75 meters)
- Displacement: 7,800 tons (Blk.I-IV); 10,200 tons (Block V-VII)
- 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:
- 4 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 | edit source]
[edit | edit source]
Block I[edit | edit source]
- USS Virginia (SSN-774)
- USS Texas (SSN-775)
- USS Hawaii (SSN-776)
- USS North Carolina (SSN-777)
Block II[edit | edit source]
- 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 | edit source]
- 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)
- USS Delaware (SSN-791)
Block IV[edit | edit source]
- USS Vermont (SSN-792)
- USS Oregon (SSN-793)
- USS Montana (SSN-794)
- USS Hyman G. Rickover (SSN-795)
- USS Bluefish (SSN-796) - sea trials
- USS Dace (SSN-797) - fitting out
- USS Massachusetts (SSN-798) - fitting out
- USS Idaho (SSN-799) - under construction
- USS Arkansas (SSN-800) - under construction
- USS Utah (SSN-801) - under construction
Block V[edit | edit source]
- USS Oklahoma (SSN-802) - under construction
- USS Arizona (SSN-803) - under construction
- USS Barb (SSN-804) - under construction
- USS Tang (SSN-805) - under construction
- USS Wahoo (SSN-806) - under construction
- USS Silversides (SSN-807) - under construction
- USS John H. Dalton (SSN-808) - planned for construction
- USS Long Island (SSN-809) - planned for construction
- USS San Francisco (SSN-810) - planned for construction
- USS Miami (SSN-811) - planned for construction
- USS Baltimore (SSN-812) - planned for construction
- USS Atlanta (SSN-813) - planned for construction
Block VI[edit | edit source]
- USS Unnamed (SSN-814)
- USS Unnamed (SSN-815)
- USS Unnamed (SSN-816)
- USS Unnamed (SSN-817)
- USS Unnamed (SSN-818)
- USS Unnamed (SSN-819)
Block VII[edit | edit source]
- USS Unnamed (SSN-820)
- USS Unnamed (SSN-821)
- USS Unnamed (SSN-822)
- USS Unnamed (SSN-823)
- USS Unnamed (SSN-824)
- USS Unnamed (SSN-825)
[edit | edit source]
- HMAS Unnamed - planned for construction
- HMAS Unnamed - planned for construction
- HMAS Unnamed - planned for construction
- HMAS Unnamed - planned for construction
- HMAS Unnamed - planned for construction