USS Missouri (SSN-780)

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USS Missouri (SSN-780) arrives at New London in December 2103.JPG
Missouri arrives at Naval Submarine Base New London in December 2013.
History
Flag of the United States.svgUnited States
NamesakeThe State of Missouri
Awarded14 August 2003 [1]
Builder General 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
Homeport Pearl Harbor, Hawaii [3]
Motto"United we stand, divided we fall"
Nickname(s)Mighty Mo
Statusin active service
Badge USS Missouri SSN-780 Crest.png
General characteristics
Class and type Virginia-class submarine
Displacement7800 tons submerged [1]
Length377 feet (115 meters) [1]
Beam34 feet (10 meters) [1]
Propulsion
  • 1 × S9G PWR nuclear reactor [4] 280,000  shp (210 MW), HEU 93% [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 (240 meters) [8]
Complement134 officers and men [7]
Armament12 × VLS (BGM-109 Tomahawk cruise missile) 4 × 533mm torpedo tubes (Mk-48 ADCAP torpedo)

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.

Contents

History

The contract to build Missouri was awarded to the Electric Boat Division of General Dynamics Corporation in Groton, Connecticut on 14 August 2003. Her keel was laid down on 27 September 2008. [1] The submarine was placed in the water on 20 November 2009, and christened on 5 December 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 US Navy 091205-N-5549O-125 Rebecca Gates breaks a bottle of champagne on the sail of the Virginia-class attack submarine Pre-Commissioing Unit (PCU) Missouri (SSN 780).jpg
Rebecca Gates christens Missouri at General Dynamics Electric Boat in Groton, Connecticut

Missouri was commissioned on 31 July 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.[ citation needed ] 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.[ citation needed ]

Missouri completed her first 6-month deployment to the U.S. 6th Fleet on 20 December 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]

On 31 March 2022, Missouri returned to Pearl Harbor after a deployment to the 7th fleet. [16]

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References

  1. 1 2 3 4 5 6 7 8 "Missouri". Naval Vessel Register. Retrieved 5 May 2010.
  2. 1 2 3 4 "Navy to Christen Submarine Missouri". Navy News Service. 3 December 2009. Retrieved 4 December 2009.
  3. ↑ "USS Missouri arrives at new home port at Pearl Harbor". 30 January 2018.
  4. 1 2 3 Ragheb, Magdi (9 September 2011), Tsvetkov, Pavel (ed.), "Nuclear Naval Propulsion", Nuclear Power - Deployment, Operation and Sustainability, ISBN   978-953-307-474-0
  5. ↑ "Validation of the Use of Low Enriched Uranium as a Replacement for Highly Enriched Uranium in US Submarine Reactors" (PDF). dspace.mit.edu. June 2015. Retrieved 20 March 2022.
  6. ↑ "US study of reactor and fuel types to enable naval reactors to shift from HEU fuel". fissilematerials.org. 10 April 2020. Retrieved 20 March 2022.
  7. 1 2 "The US Navy – Fact File". Archived from the original on 3 July 2007. 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. ↑ "Missouri Welcomed Home after Maiden Deployment". Archived from the original on 30 May 2016. Retrieved 9 April 2016.
  11. ↑ "USS Missouri Returns from Surge Deployment". Archived from the original on 30 May 2016. Retrieved 9 April 2016.
  12. ↑ "Ukraine: Putin signs Crimea annexation". BBC News. 21 March 2014. Retrieved 20 November 2021.
  13. ↑ "VIDEO: Virginia-class submarine glides through Scotland waters – Naval Today". 8 April 2016.
  14. ↑ "USS Missouri returning to homeport in Groton". Navytimes.com. 12 February 2016. Retrieved 20 November 2021.
  15. ↑ USS Missouri in Hawaii: Posted 20 January 2018, Retrieved 2018-05-12
  16. ↑ @USNavy (5 April 2022). "Welcome back, Shipmates ⚓ 🇺🇸The Virginia-class fast-attack #submarine #USSMissouri (SSN 780) returned to Joint Ba…" (Tweet) – via Twitter.
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