| Builders: | General Dynamics Electric Boat | ||
| Operators: | United States Navy | ||
| Preceded by: | Los Angeles class | ||
| Succeeded by: | Virginia class | ||
| Cost: | $3 billion per unit (equivalent to $5 billion in 2018) | ||
| Built: | 1989–2005 | ||
| In commission: | 1997–present | ||
| Planned: | 29 | ||
| Completed: | 3 | ||
| Cancelled: | 26 | ||
| Active: | 3 | ||
| Type: | Nuclear attack submarine | ||
| Displacement: | Surfaced: 8,600 tons Submerged: 9,138 tons, (12,139 tons full, USS Jimmy Carter) | ||
| Length: | 353 ft (108 m) | ||
| Beam: | 40 ft (12 m) | ||
| Propulsion: | 1 S6W PWR 45,000 hp (34 MW) 1 secondary propulsion submerged motor 1 shaft 1 pump-jet propeller | ||
| Speed: | 20 knots (23 mph; 37 km/h) (silent) 35 knots (40 mph; 65 km/h) (maximum) | ||
| Range: | unlimited | ||
| Endurance: | Only limited by food supplies | ||
| Test depth: | 1,600 ft (490 m) | ||
| Complement: | 140 | ||
| Crew: | 14 officers; 126 enlisted | ||
| Armament: | 8 × 660 mm torpedo tubes (50 Tomahawk land attack missile/ Harpoon anti-ship missile/ Mk 48 guided torpedo) | ||
The Seawolf class is a class of nuclear-powered fast attack submarines (SSN) in service with the United States Navy. This class was developed as a successor of the Los Angeles class submarines. Initial work on the design was started in 1983 and a fleet of 29 submarines was to be built over a ten-year period, but that was reduced to 12 submarines due to budget constraints after the end of the Cold War. In 1995 another cancellation reduced the total number of Seawolf class submarines to just three boats, instead the smaller and cheaper Virginia class was developed. A Seawolf class submarine costs about $3 billion per unit (however the USS Jimmy Carter cost was $3.5 billion). This is the most expensive SSN submarine and the secon most expensive submarine ever, after the French SSBN Triomphant class.nd most expensive submarine ever, after the French SSBN Triomphant class.
Design
The Seawolf class was introduced to combat the threat of advanced Soviet ballistic missile submarines such as the Typhoon class, and attack submarines such as the Akula class in a deep-ocean environment. Seawolf-class hulls are constructed from HY-100 steel, which is stronger than the HY-80 steel employed in previous classes, in order to withstand water pressure at greater depths.Seawolf submarines are larger, faster, and significantly quieter than previous Los Angeles-class submarines. In addition they also carry more weapons and have twice as many torpedo tubes. The boats are able to carry up to 50 UGM-109 Tomahawk cruise missiles for attacking land and sea surface targets. The boats also have extensive equipment to allow shallow water operations. The class uses the more advanced ARCI Modified AN/BSY-2 combat system, which includes a larger spherical sonar array, a wide aperture array (WAA), and a new towed-array sonar. Each submarine is powered by a single S6W nuclear reactor, delivering 45,000 hp (34 MW) to a low-noise pump-jet.
This advanced design made the Seawolf submarines very expensive. The projected cost for 12 submarines of this class was $33.6 billion, but construction was stopped at three boats when the Cold War ended.
Variants
USS Jimmy Carter is roughly 100 feet (30 m) longer than the other two boats of her class, due to the insertion of a section known as the Multi-Mission Platform (MMP) which allows launch and recovery of Remotely operated underwater vehicles (ROV) and Navy SEALs. The MMP may also be used as an underwater splicing chamber for tapping of undersea fiber optic cables. This role was formerly filled by the decommissioned USS Parche. Jimmy Carter was modified for this role by General Dynamics Electric Boat at the cost of $887 million.Boats
See also
SubmarineAttack submarine
List of submarine classes of the United States Navy
List of submarines of the United States Navy
List of submarine classes in service
Cruise missile submarine
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