Dreadnought-class submarine program

Agency

UK Ministry of Defence

Acronym

Budget

GBP8.4B (~$11.3B) Delivery Phase 4, announced Jul 2026: GBP5.9B direct to BAE Systems, GBP2.5B for supply chain/long-lead components

Phase

Delivery Phase 4 funded Jul 2026; HMS Dreadnought (lead boat) progressing to sea trials for early-2030s in-service date

Domain

Ballistic-missile submarines / nuclear deterrent

• CompanyBAE SystemsBritish defense, security, and aerospace prime; UK industrial lead on GCAP (Tempest), builder of the Type 26/Hunter-class frigates and AMPV.

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What is Dreadnought-class submarine program?

The Dreadnought-class submarine program is the UK Royal Navy's effort to build four ballistic-missile submarines (HMS Dreadnought, Valiant, Warspite, and King George VI), replacing the Vanguard class as the platform for Britain's continuous at-sea nuclear deterrent. BAE Systems builds the boats at Barrow-in-Furness; in July 2026 the UK government funded Delivery Phase 4 at GBP8.4 billion (~$11.3B) — GBP5.9B direct to BAE Systems plus GBP2.5B for supply-chain long-lead components — supporting an estimated 47,000 jobs nationally.

Which agency runs Dreadnought-class submarine program?

Dreadnought-class submarine program is run by UK Ministry of Defence.

What is the budget for Dreadnought-class submarine program?

Dreadnought-class submarine program has a budget of GBP8.4B (~$11.3B) Delivery Phase 4, announced Jul 2026: GBP5.9B direct to BAE Systems, GBP2.5B for supply chain/long-lead components, currently in its Delivery Phase 4 funded Jul 2026; HMS Dreadnought (lead boat) progressing to sea trials for early-2030s in-service date phase.

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