![]() Each submarine will have 16 missile tubes, each carrying one Trident II D5LE missile (to be upgraded to D5LE2s from the ninth submarine onward after fiscal year 2039). A total of 12 submarines are planned, and construction of the lead boat began in 2021. Įlectric Boat designed the new class with help from Newport News Shipbuilding. The Columbia class will take over the role of submarine presence in the United States’ strategic nuclear force. The Columbia class is to replace the Ohio class of UGM-133 Trident II–armed ballistic missile submarines, whose remaining boats are to be decommissioned, one per year, beginning in 2027. The Navy did not say whether the name of the class will also be changed. ![]() On 3 June 2022, the Navy announced that this first boat will be named USS District of Columbia (SSBN-826), because there currently exists an attack submarine named USS Columbia (SSN-771). She is scheduled to enter service in 2031. Construction of the first submarine began on 1 October 2020. The Columbia-class (formerly known as the Ohio Replacement Submarine and SSBN-X Future Follow-on Submarine) is an upcoming class of nuclear-powered ballistic missile submarines designed to replace the Ohio-class of the United States Navy. US$9.15 billion per unit (FY2021, projected)Ģ0,810 long tons (21,140 t) (submerged) Įnlarged version of the Virginia-class LAB sonar ġ6 × Trident D5 and twin torpedo tubes.US$109.8 billion for 12 boats (FY2021, projected).Artist's rendering of the planned Columbia-class submarine (Naval Sea Systems Command) ![]()
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