Dreadnought-class nuclear-powered ballistic missile submarines

E234046

The Dreadnought-class nuclear-powered ballistic missile submarines are the United Kingdom’s next-generation Trident-armed deterrent vessels designed to replace the Vanguard class and maintain the country’s continuous at-sea nuclear deterrence.

All labels observed (5)

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Statements (49)

Predicate Object
instanceOf ballistic missile submarine class
nuclear-powered submarine class
armament Trident II D5 submarine-launched ballistic missile
beam approximately 12.8 metres
builder BAE Systems Submarines
capability continuous at-sea deterrent
classification SSBN
constructionSite Barrow-in-Furness
country United Kingdom
crewComplement around 130
designAuthority BAE Systems Submarines
designBegan 2011
designFeature X-form stern
enhanced stealth characteristics
improved habitability for crew
displacementSubmerged approximately 17000 tonnes
firstSteelCut 2016
fundingApprovedBy UK Parliament
linked to: British Parliament
fundingMainGateApproval 2016
homePortPlanned HMNB Clyde
hullMaterial high-tensile steel
length approximately 153 metres
missileCompartmentDesign Common Missile Compartment
missileCompartmentsSharedWith Columbia-class submarine
missileCompartmentSupplier General Dynamics Electric Boat
namedAfter HMS Dreadnought (1906)
linked to: HMS Dreadnought
natoRole contribution to NATO nuclear deterrence
nuclearWeaponSystem UK Trident programme
numberOfPlannedUnits 4
officialClassNameAnnounced 2016
operator Royal Navy
plannedUnit HMS Dreadnought
HMS King George VI
HMS Valiant
HMS Warspite
predecessor Vanguard-class submarine
primaryRole strategic nuclear deterrence
programmeCostEstimate tens of billions of pounds sterling
programmeName Successor programme
propulsion nuclear reactor
pump-jet propulsion
reactorDesignOrigin US-UK naval reactor cooperation
reactorGeneration PWR3
reactorSupplier Rolls-Royce
linked to: Rolls-Royce Limited
reactorType pressurised water reactor
replaces Vanguard-class submarine
serviceBranch Submarine Service
serviceEntryPlanned early 2030s
strategicPurpose maintain UK independent nuclear deterrent

How these facts were elicited

Referenced by (5)

Full triples — surface form annotated when it differs from this entity's canonical label.

Nuclear weapons policy of the United Kingdom deliveryPlatform Dreadnought-class nuclear-powered ballistic missile submarines
Vanguard-class ballistic missile submarine plannedSuccessorClass Dreadnought-class ballistic missile submarine
linked to: Dreadnought-class nuclear-powered ballistic missile submarines
United Kingdom defence policy nuclearSystem Dreadnought-class ballistic missile submarines
linked to: Dreadnought-class nuclear-powered ballistic missile submarines
Dreadnought-class submarine successorTo Continuous At-Sea Deterrent submarines of the Vanguard class
linked to: Dreadnought-class nuclear-powered ballistic missile submarines
Common Missile Compartment associatedWithProgram UK Dreadnought-class SSBN program
linked to: Dreadnought-class nuclear-powered ballistic missile submarines