USS South Dakota (SSN-790)

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For other ships with the same name, see USS South Dakota.

USS South Dakota (SSN-790)
USS South Dakota (SSN-790) underway off Groton, Connecticut (USA), on 9 January 2019 (190109-N-LW591-045).JPG
South Dakota on 9 January 2019
History
United States
NameUSS South Dakota
NamesakeThe state of South Dakota
Awarded22 December 2008
BuilderElectric Boat
Laid down4 April 2016[3]
Sponsored byDeanie Dempsey[4]
Christened14 October 2017[5]
Acquired24 September 2018[1]
Commissioned2 February 2019[2]
StatusIn active service
General characteristics
Class and type Virginia-class submarine
Displacement7800 tons light, 7800 tons full[6]
Length114.9 meters (377 feet)[6]
Beam10.3 meters (34 feet)
Propulsion
  • 1 × S9G PWR nuclear reactor[7] 280,000 shp (210 MW), HEU 93.5%[8][9]
  • 2 × steam turbines 40,000 shp (30 MW)
  • 1 × single shaft pump-jet propulsor[7]
  • 1 × secondary propulsion motor[7]
Speed25 knots (46 km/h)[10]
RangeEssentially unlimited distance; 33 years
Test depthgreater than 800 feet (240 meters)[11]
Complement134 officers and men[10]

USS South Dakota (SSN-790), is a nuclear powered Virginia-class submarine in service with the United States Navy. The contract to build her was awarded to Huntington Ingalls Industries in partnership with the Electric Boat division of General Dynamics in Newport News, Virginia on 22 December 2008. This boat is the seventh of the Block III submarines which will feature a revised bow, including some technology from Ohio-class SSGNs.[12]

The keel laying ceremony took place on 4 April 2016. The boat's sponsor is Deanie Dempsey, wife of General Martin Dempsey, US Army (retired).[3] Her christening ceremony took place on 14 October 2017 in Groton, Connecticut. Named for the state of South Dakota, she is the third navy vessel to carry the name, the previous ships being South Dakota (ACR-9) (name later changed to Huron), followed by South Dakota (BB-57).

See also[]

  • South Dakota (BB-49) was to be the lead of a six-ship class of post-WWI battleships, but the entire class was cancelled.

References[]

  1. ^ "Future USS South Dakota Delivered to U.S. Navy" (Press release). United States Navy. 25 September 2018. NNS180925-11. Retrieved 25 September 2018.
  2. ^ "USS South Dakota (SSN 790) Commissioned" (Press release). United States Navy. 2 February 2019. NNS190202-06. Retrieved 2 February 2019.
  3. ^ a b "Keel laying held in Rhode Island for stealthy Navy submarine" (Press release). Associated Press. 5 April 2016. Retrieved 5 April 2016.
  4. ^ McDermott, Jennifer (4 April 2016). "Keel laying held for Navy attack sub South Dakota". NavyTimes.com. Retrieved 17 October 2019.
  5. ^ Osborn, Kris (16 October 2017). "U.S. Navy Launches Most High-Tech & Stealthy Nuclear Attack Submarine Ever". Retrieved 17 October 2019.
  6. ^ a b Ryan, Joal (30 May 2019). "The christening of the USS South Dakota". CNET. Retrieved 17 October 2019.
  7. ^ a b c Ragheb, Magdi (9 September 2011), Tsvetkov, Pavel (ed.), "Nuclear Naval Propulsion", Nuclear Power - Deployment, Operation and Sustainability, ISBN 978-953-307-474-0
  8. ^ https://fissilematerials.org/blog/2020/04/us_study_of_reactor_and_f.html
  9. ^ https://dspace.mit.edu/bitstream/handle/1721.1/103656/953286533-MIT.pdf
  10. ^ a b "The US Navy – Fact File". 26 February 2019. Retrieved 5 July 2007.
  11. ^ "SSN-774 Virginia-class". GlobalSecurity.org. Retrieved 17 October 2019.
  12. ^ "Virginia Block III: The Revised Bow". Retrieved 20 May 2008.
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