US Columbia-Class Nuclear Submarines to Run 42 Years Without Refueling
The United States is developing the Columbia-class submarine fleet to bolster its nuclear deterrent capabilities. A key feature of these vessels is a life-of-ship nuclear reactor that requires no mid-life refueling, reducing costs and improving operational availability. The Columbia-class boats are designed to replace the aging Ohio-class submarines currently in service. The first Columbia-class submarine is scheduled for delivery in 2029, offering improved stealth and survivability compared to its predecessors.
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