The submarine programs compete for a constrained industrial base while performing different missions. Columbia replaces Ohio in the strategic deterrent force, Virginia provides attack submarines, and SSN(X) carries longer-term design demands. The Columbia construction model places Electric Boat in the lead, with Huntington Ingalls contributing work and final assembly at Groton. The design features discussed include fly-by-wire controls and an X-shaped stern, alongside the requirement for a quiet and survivable deterrent. The plan seeks at least twelve boats in three builds, including two in the first build and five in the second. Serial procurement beginning with the third boat in FY2026 is intended to support delivery of one Columbia per year. Contracts would use schedule incentives and penalties to support that target. Achieving the intended rhythm also depends on capacity needed for attack-submarine construction.
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Columbia construction and the submarine industrial base
The Columbia plan couples a minimum twelve-boat deterrent force with annual production targets, shared construction work, and a submarine industry already under strain.