Columbia-class submarine

Columbia class
The planned Columbia-class submarine, as drawn in 2019 by Naval Sea Systems Command
Class overview
Preceded byOhio class
Cost
  • US$109.8 billion for 12 boats (FY2021, projected)[1]
  • US$9.15 billion per unit (FY2021, projected)
Built2020–present
Planned12[3]
On order2
Building1[2]
General characteristics
TypeBallistic missile submarine (SSBN)
Displacement20,810 long tons (21,140 t) (submerged)[4]
Length560 ft (171 m)[4]
Beam43 ft (13 m)[4]
Installed powerS1B[5]
PropulsionTurbo-electric drive, pump-jet[4]
RangeUnlimited
Complement155 (accommodation)[4]
Sensors and
processing systems		Enlarged version of the Virginia-class LAB sonar[4]
Armament16 × Trident D5[6] and torpedo tubes

The upcoming Columbia-class (formerly known as the Ohio Replacement Submarine and SSBN-X Future Follow-on Submarine) nuclear-powered ballistic missile submarines of the United States Navy are designed to replace the Ohio class.[7] Construction of the first vessel began on 1 October 2020.[8] She is scheduled to enter service in 2031.[9][10][11]

On 3 June 2022, the Navy announced that the lead boat of her class will be named USS District of Columbia (SSBN-826), because there is already an attack submarine named USS Columbia (SSN-771).[12] Nevertheless, the Navy has since continued to refer to the class as the Columbia class.[13][14]

  1. ^ O'Rourke, Ronald (1 May 2020). "Navy Columbia (SSBN-826) Class Ballistic Missile Submarine Program: Background and Issues for Congress". Congressional Research Service. p. 7. Retrieved 14 May 2020.
  2. ^ "US Navy begins construction of Columbia Class ballistic missile submarines". defenceconnect.com.au. 10 November 2020. Retrieved 16 April 2021.
  3. ^ "Columbia-class Program Upping Oversight of Vendors, Components to Stave Off Further Delays". usni.org. 8 November 2018. Retrieved 9 November 2018.
  4. ^ a b c d e f "Ohio Replacement Program". United States Naval Institute. 18 October 2012. Retrieved 1 November 2012.
  5. ^ "Navy Awards Bechtel $1.5 Billion Worth of Reactor Component Contracts". Defense Daily. Retrieved 1 December 2023.
  6. ^ Cite error: The named reference FAS01 was invoked but never defined (see the help page).
  7. ^ "SSBN-X Future Follow-on Submarine". GlobalSecurity.org. 24 July 2011. Retrieved 24 July 2011.
  8. ^ "Navy: USS Columbia Will Have Most Complete Design Ever at Official Construction Start". 8 May 2019.
  9. ^ NUCLEAR POSTURE REVIEW FINAL REPORT media.defense.gov
  10. ^ "SENEDIA Defense Innovation Days" (PDF). Senedia.org. 5 September 2014. Retrieved 20 August 2016.
  11. ^ This story was written by Lt. Rebecca Rebarich, Commander Submarine Group Ten Public Affairs. "1,000 Trident Patrols: SSBNs the Cornerstone of Strategic Deterrence". Navy.mil. Retrieved 20 August 2016.
  12. ^ Burgess, Richard R. (6 June 2022). "DC Congresswoman Pushes DC Statehood at Keel-Laying for Navy Submarine". Seapower. Retrieved 10 April 2024.
  13. ^ "SECNAV Names SSBN 826 USS District of Columbia". United States Navy. Retrieved 4 June 2022.
  14. ^ "CNO Visits Philadelphia for Submarine and Shipbuilding Updates". United States Navy. Retrieved 10 April 2024.