The nuclear propulsion choice is not a capability decision — it's a budget architecture decision. Conventional propulsion would cost $8–10B and free up 8–10 naval reactors over the platform's lifecycle for Ohio-class work. The Navy is betting that Congress will appropriate $17.5B for a single high-end platform rather than demand it produce more surface combatants at lower cost.
If Congress balks at the price tag in FY27 markup, the program reverts to conventional power or dies. The carrier design review suggests the Navy is also reconsidering the CVN-80/81 construction rate — potentially stretching deliveries to absorb the battleship's industrial footprint.
Nuclear propulsion on a battleship locks the Navy into a 50+ year platform lifecycle and a dedicated supply chain for naval reactors — a constraint that competes directly with Ohio-class SSBN refueling and Columbia-class construction in the Naval Reactors budget.
The $17.5B commitment forces NAVSEA to justify this as a high-end strike platform, not a destroyer replacement, which means the service is signaling it expects sustained funding for both the battleship AND a separate large-surface-combatant line. If the Trump-class absorbs reactor production capacity, Columbia-class delays cascade into the 2030s, compressing the SSBN modernization window.
Watch the FY27 budget justification for how many Naval Reactors billets shift from ballistic missile boats to surface combatants.
Does the Navy's reactor production capacity actually support building both Columbia-class SSBNs at full rate AND a nuclear battleship, or is this budget plan contingent on reactor manufacturing expansion?
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