Moored training ship

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MTS 635.jpg

A moored training ship (MTS) is a United States Navy nuclear powered submarine that has been converted to a training ship for the Nuclear Power Training Unit (NPTU) at Naval Support Activity Charleston in South Carolina. The Navy uses decommissioned nuclear submarines and converts them to MTSs to train personnel in the operation and maintenance of submarines and their nuclear reactors. The first moored training ship was USS Sam Rayburn (SSBN-635) a James Madison-class fleet ballistic missile submarine, redesignated as (MTS-635) in 1989, followed a year later by USS Daniel Webster (SSBN-626), a Lafayette-class ballistic missile submarine, redesignated as (MTS-626). Conversion of these two boats took place at the Charleston Naval Shipyard and modifications included special mooring arrangements with a mechanism to absorb power generated by the main propulsion shaft. [1]

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The Navy added two more moored training ships to this facility, USS La Jolla (SSN-701) [2] and USS San Francisco (SSN-711), [3] a pair of Los Angeles-class attack submarines. The conversions for these two took place at the Norfolk Naval Shipyard [4] and then were towed to NPTU Charleston. La Jolla became inactive in early 2015 and began the 32 month conversion to a training ship. Changes include having the hull cut into three sections, with the center section being recycled and the other two joined with three new sections, manufactured by Electric Boat, extending the overall length by 23 m (76 ft). The project was expected to be completed by the end of 2018. [5] San Francisco arrived at Norfolk to begin her conversion in January 2018. [4] La Jolla arrived at NPTU Charleston in 2019 and San Francisco arrived in 2021. [6]

With the addition of La Jolla and San Francisco, the Navy retired Sam Rayburn and Daniel Webster. [7] Sam Rayburn was towed to Norfolk Naval Shipyard in 2021 to be inactivated, and Daniel Webster will also be inactivated at Norfolk, sometime later. [8]

Moored training ships

NameHull numberBuilderShip classLaid downLaunchedCommissionedReclassified as MTSInactivated as MTS
Sam Rayburn SSBN-635 Newport News Shipbuilding and Drydock Co. James Madison 3 December 196220 December 19632 December 196431 July 19891 April 2021
Daniel Webster SSBN-626 General Dynamics Electric Boat Lafayette 28 December 196127 April 19639 April 196430 August 1990December 2023
La Jolla SSN-701 General Dynamics Electric Boat Los Angeles 16 October 197611 August 197924 October 198115 November 2019Active
San Francisco SSN-711 Newport News Shipbuilding and Drydock Co. Los Angeles 26 May 197727 October 197924 April 198116 August 2021Active

See also

References

  1. "MTS". globalsecurity.org. Retrieved 6 January 2018.
  2. "La Jolla (SSN 701)". Naval Vessel Register. Retrieved 6 January 2018.
  3. "San Francisco (SSN 711)". Naval Vessel Register. Retrieved 6 January 2018.
  4. 1 2 "US Navy's Norfolk shipyard undocks USS La Jolla submarine". naval-technology.com. 6 December 2017. Retrieved 6 January 2018.
  5. "USS La Jolla reaches moored training ship conversion milestone". Naval Today. 1 December 2017. Retrieved 6 January 2018.
  6. "Los Angeles Class Nuclear Submarine Transformed Into A Floating Schoolhouse". The War Zone. 24 August 2021. Retrieved 14 December 2024.
  7. "NNSY welcomes MTS Sam Rayburn for inactivation". Seapower. Retrieved 2024-05-25.
  8. "NNSY welcomes MTS Sam Rayburn for inactivation". Naval Sea Systems Command. Retrieved 2024-05-25.[ dead link ]