USS Missouri (SSN-780)

USS Missouri (SSN-780) is the seventh Virginia-class attack submarine and the fourth ship in the United States Navy named in honor of the U.S. state of Missouri.[2] She was completed, and delivered, nine months early and under budget.

For other ships with the same name, see USS Missouri.

Missouri arrives at Naval Submarine Base New London in December 2013.
History
United States
NamesakeThe State of Missouri
Awarded14 August 2003[1]
BuilderGeneral Dynamics Electric Boat[1]
Laid down27 September 2008[1]
Launched20 November 2009[1]
Sponsored byRebecca W. Gates[2]
Christened5 December 2009[2]
Commissioned31 July 2010
HomeportPearl Harbor, Hawaii[3]
Motto"United we stand, divided we fall"
Statusin active service
Badge
General characteristics
Class and type Virginia-class submarine
Displacement7800 tons submerged[1]
Length377 feet (114.9 meters)[1]
Beam34 feet (10.3 meters)[1]
Propulsion
  • 1 × S9G PWR nuclear reactor[4] 280,000 shp (210 MW), HEU 93.5%[5][6]
  • 2 × steam turbines 40,000 shp (30 MW)
  • 1 × single shaft pump-jet propulsor[4]
  • 1 × secondary propulsion motor[4]
Speed25+ knots (28+ mph, 46+ km/h)[7]
RangeEssentially unlimited distance; 33 years
Test depthgreater than 800 feet (250 meters)[8]
Complement134 officers and men[7]
Armament12 × VLS (BGM-109 Tomahawk cruise missile) 4 × 533mm torpedo tubes (Mk-48 ADCAP torpedo)

History

The contract to build Missouri was awarded to the Electric Boat Division of General Dynamics Corporation in Groton, Connecticut on August 14th, 2003. Her keel was laid down on September 27th, 2008.[1] The submarine was placed in the water on November 20th, 2009, and christened on December 5th, 2009. Missouri's sponsor is Becky Gates, wife of Secretary of Defense Robert Gates.[2]

Rebecca Gates christens Missouri at General Dynamics Electric Boat in Groton, Connecticut

Missouri was commissioned on July 31st, 2010. Her first assignment is with Submarine Squadron 4 (SUBRON 4) based at US Naval Submarine Base New London, Groton, CT.[9]

The 7,800-ton submarine Missouri was built under a joint arrangement between General Dynamics Electric Boat and Northrop Grumman Shipbuilding-Newport News. Sections of the submarine were built at both shipyards with final assembly completed at one or the other. In this instance, SSN-780 was assembled at the Groton/New London, Connecticut shipyard. Final assembly occurred alternately between the two. During the design and construction phases both shipyards collaborated to complete each submarine.

Missouri completed her first 6-month deployment to the U.S. 6th Fleet on December 20th, 2013.[10] In March 2014 Missouri made an 11-week-long surge deployment in the Northern Atlantic, just three months after her previous deployment[11] possibly linked to the Annexation of Crimea by the Russian Federation, which took place in March 2014.[12] The submarine continued to operate with the U.S. 6th fleet in 2015.[13][14]

On 26 January 2018, Missouri sailed into her new homeport of Pearl Harbor, Hawaii from Groton, Connecticut.[15]

References
  1. "Missouri". Naval Vessel Register. Retrieved 5 May 2010.
  2. "Navy to Christen Submarine Missouri". Navy News Service. 3 December 2009. Retrieved 4 December 2009.
  3. http://www.stltoday.com/news/local/state-and-regional/uss-missouri-arrives-at-new-home-port-at-pearl-harbor/article_afe45ddd-72d0-53a6-9802-c6a8fbca4540.html
  4. Ragheb, Magdi (9 September 2011), Tsvetkov, Pavel (ed.), "Nuclear Naval Propulsion", Nuclear Power - Deployment, Operation and Sustainability, ISBN 978-953-307-474-0
  5. https://fissilematerials.org/blog/2020/04/us_study_of_reactor_and_f.html
  6. https://dspace.mit.edu/bitstream/handle/1721.1/103656/953286533-MIT.pdf
  7. "The US Navy – Fact File". Retrieved 5 July 2007.
  8. GlobalSecurity.org
  9. McDermott, Jennifer, "USS Missouri Leading Way For New Wave of Submarines", New London Day, 1 August 2010.
  10. http://www.navy.mil/submit/display.asp?story_id=78407
  11. http://www.navy.mil/submit/display.asp?story_id=81530
  12. "Ukraine: Putin signs Crimea annexation - BBC News". Bbc.com. Retrieved 20 November 2021.
  13. http://navaltoday.com/2016/04/08/video-virginia-class-submarine-glides-through-scotland-waters/
  14. "USS Missouri returning to homeport in Groton". Navytimes.com. Retrieved 20 November 2021.
  15. USS Missouri in Hawaii: Posted January 20, 2018, Retrieved 2018-05-12
  • Mohl, Michael (2010). "'Missouri' (SSN-780)". Submarine Photo Archive. NavSource Naval History. Retrieved 5 May 2010.
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