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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]
The 12 ballistic missile submarines of the Columbia class will perform deterrent patrols, the naval leg of the U.S. nuclear triad. They will replace the Ohio class, whose submarines are to be decommissioned, one per year, beginning in 2027. [6] District of Columbia will replace an as-yet-unannounced Ohio.
Note: Several boats were converted into cruise missile submarines after construction, the USS Halibut was the only purpose built SSGN of the US Navy Class Name No. First boat laid down Last boat commissioned Notes Picture/Silhouette Halibut: 1 11 April 1957 4 January 1960 Unique submarine; Regulus missile submarine
USS Wisconsin (SSBN-827) will be the second Columbia-class ballistic missile submarine. She is the third vessel of the United States Navy to be named after the state of Wisconsin. [2] The previous name holder was the Iowa-class battleship USS Wisconsin (BB-64), which decommissioned in 1991 and stricken from the Naval Vessel Register in 2006. [3]
The U.S. has 18 Ohio-class submarines, of which 14 are Trident II ballistic missile submarines (SSBNs), each capable of carrying 24 submarine-launched ballistic missiles (SLBMs), although to comply with the START II treaty, 4 of the missile launch tubes have been disabled.
General Dynamics' (GD) Electric Boat division will construct the Columbia Class fleet ballistic missile submarines (SSBN) 826 and 827 submarines, per the recent deal terms.
The White House just asked Congress for an emergency $7.3 billion to cover costs on nuclear attack submarines to prey on China, plus the new Columbia-class nuclear missile "boomers" that will ...
The Ohio class was designed in the 1970s to carry the concurrently designed Trident submarine-launched ballistic missile. The first eight Ohio-class submarines were armed at first with 24 Trident I C4 SLBMs. [6] Beginning with the ninth Trident submarine, Tennessee, the remaining boats were equipped with the larger, three-stage Trident II D5 ...