SSN-790 USS South Dakota

Namesake. The state of South Dakota
Awarded. 22 Dec 2008
Builder. General Dynamics Electric Boat
Laid down. 4 Apr 2016
Christened. 14 Oct 2017
Acquired. 24 Sep 2018
Commissioned. 2 Feb 2019
Homeport. Groton, Connecticut
Motto. Subter Mare Dominamur “Under the sea we rule”
Status. In active service
Class and type. Virginia-class fast-attack submarine
Displacement. 7800 tons light, 7800 tons full
Length. 114.9 meters (377 feet)
Beam. 10.3 meters (34 feet)
Propulsion:
1 × S9G PWR nuclear reactor 280,000 shp (210 MW), HEU 93%
2 × steam turbines 40,000 shp (30 MW)
1 × single shaft pump-jet propulsor
1 × secondary propulsion motor
Speed. 25 knots (46 km/h)
Range. Essentially unlimited distance; 33 years
Test depth. greater than 800 feet (240 meters)
Complement. 134 officers and me
Armament. 12 VLS tubes, four 21 inch (530 mm) torpedo tubes for Mk-48 torpedoes
BGM-109 Tomahawk