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Nuclear Submarines

Asked by Stuart AndersonConservativeMinistry of DefenceTabled Answered 15 July 2026UIN 17423

The question

To ask the Secretary of State for Defence, what is the expected delivery date of the 12 next-generation SSN-B nuclear powered submarines.

Answered by Luke Pollard

As set out in the Defence Investment Plan, we will procure up to 12 next-generation SSN-AUKUS nuclear powered, conventionally armed attack submarines.

On current plans, we will cut steel on the first SSN-AUKUS submarine

next year, with the aim to deliver the first UK submarine into service in the 2030s.

I hope the Hon Gentleman will understand that the planned in-service dates for Royal Navy submarines are withheld as disclosure would, or would be likely to, prejudice the capability, effectiveness, or security of the Armed Forces.

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