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GAO Report: New Columbia-Class Technology Risks May Postpone Deployment Of Lead Submarine

GAO Report: New Columbia-Class Technology Risks May Postpone Deployment Of Lead Submarine
Ohio-class ballistic missile submarine USS Louisiana (SSBN 743). (Photo: U.S. Navy)

A new Government Accountability Office (GAO) report to Congress found that several technologies for the Columbia-class submarine program need more development and testing to prevent cost and schedule delays that could delay deployment of the lead submarine beyond a 2031 deadline.Twelve Columbia-class ballistic missile submarines (SSBNs) are planned to replace the existing 14 Ohio-class vessels that provide the sea leg in the U.S. nuclear weapons triad. The Ohio­-class submarines are scheduled to begin retiring in 2027 and the first Columbia-class unit…

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