Vanguard-class submarine
E235138
The Vanguard-class submarine is a class of British nuclear-powered ballistic missile submarines that form the seaborne leg of the United Kingdom’s strategic nuclear deterrent.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Vanguard-class submarine canonical | 10 |
| Vanguard-class submarines | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2023319 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Vanguard-class submarine Context triple: [Trident nuclear missile system, platform, Vanguard-class submarine]
-
A.
Victor-class submarine
The Victor-class submarine was a series of Soviet nuclear-powered attack submarines developed during the Cold War for high-speed, deep-diving anti-submarine and anti-surface warfare.
-
B.
Astute-class submarine
The Astute-class submarine is a fleet of advanced nuclear-powered attack submarines built for the Royal Navy, known for their stealth, endurance, and sophisticated weapons and sensor systems.
-
C.
Delta-class submarine
The Delta-class submarine is a series of Soviet nuclear-powered ballistic missile submarines developed during the Cold War to enhance the USSR’s strategic nuclear deterrent.
-
D.
Victoria-class submarine
The Victoria-class submarine is a class of diesel-electric attack submarines originally built for the Royal Navy as the Upholder class and later modernized and operated by the Royal Canadian Navy for coastal defense, surveillance, and training.
-
E.
Oscar-class submarine
The Oscar-class submarine is a Soviet-designed nuclear-powered cruise missile submarine class built during the Cold War to attack NATO carrier battle groups and strategic targets at sea.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Vanguard-class submarine Target entity description: The Vanguard-class submarine is a class of British nuclear-powered ballistic missile submarines that form the seaborne leg of the United Kingdom’s strategic nuclear deterrent.
-
A.
Victor-class submarine
The Victor-class submarine was a series of Soviet nuclear-powered attack submarines developed during the Cold War for high-speed, deep-diving anti-submarine and anti-surface warfare.
-
B.
Astute-class submarine
The Astute-class submarine is a fleet of advanced nuclear-powered attack submarines built for the Royal Navy, known for their stealth, endurance, and sophisticated weapons and sensor systems.
-
C.
Delta-class submarine
The Delta-class submarine is a series of Soviet nuclear-powered ballistic missile submarines developed during the Cold War to enhance the USSR’s strategic nuclear deterrent.
-
D.
Victoria-class submarine
The Victoria-class submarine is a class of diesel-electric attack submarines originally built for the Royal Navy as the Upholder class and later modernized and operated by the Royal Canadian Navy for coastal defense, surveillance, and training.
-
E.
Oscar-class submarine
The Oscar-class submarine is a Soviet-designed nuclear-powered cruise missile submarine class built during the Cold War to attack NATO carrier battle groups and strategic targets at sea.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Royal Navy submarine class
ⓘ
ballistic missile submarine class ⓘ nuclear-powered submarine class ⓘ |
| armament |
Spearfish torpedo
ⓘ
linked to:
Spearfish heavyweight torpedoes
Trident II D5 submarine-launched ballistic missile ⓘ
linked to:
Trident II D5 missile
|
| baseOfOperations |
Faslane Naval Base
ⓘ
linked to:
Faslane
|
| beam | approximately 12.8 metres ⓘ |
| branch | Royal Navy Submarine Service ⓘ |
| builder |
Barrow-in-Furness shipyard
ⓘ
Vickers Shipbuilding and Engineering Ltd ⓘ
linked to:
Vickers-Armstrongs
|
| constructionStart | late 1980s ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| crewComplement | approximately 135 ⓘ |
| designedBy |
Vickers Shipbuilding and Engineering Ltd
ⓘ
linked to:
Vickers-Armstrongs
|
| designedFor | continuous at-sea deterrent ⓘ |
| designedToReplace |
Resolution-class submarine
ⓘ
linked to:
Resolution-class ballistic missile submarine
|
| deterrentPosture | continuous at-sea deterrent (CASD) ⓘ |
| displacementSubmerged | approximately 15,900 tonnes ⓘ |
| displacementSurfaced | approximately 15,000 tonnes ⓘ |
| firstUnitCommissioned |
HMS Vanguard (S28)
ⓘ
linked to:
HMS Vanguard
|
| flag | United Kingdom ⓘ |
| hasPart |
HMS Vanguard (S28)
ⓘ
linked to:
HMS Vanguard
HMS Vengeance (S31) ⓘ
linked to:
HMS Vengeance
HMS Victorious (S29) ⓘ HMS Vigilant (S30) ⓘ
linked to:
HMS Vigilant
|
| homePort | HMNB Clyde ⓘ |
| launchPlatformFor |
Trident nuclear warhead
ⓘ
linked to:
Trident nuclear missile system
|
| length | approximately 149.9 metres ⓘ |
| maximumDivingDepth | classified ⓘ |
| missileTubes | 16 ⓘ |
| natoReportingName | Vanguard class ⓘ |
| nuclearReactorType | pressurised water reactor ⓘ |
| nuclearWarheadSystem |
UK Trident nuclear weapons system
ⓘ
linked to:
Trident nuclear missile system
|
| numberOfUnitsBuilt | 4 ⓘ |
| operator | Royal Navy ⓘ |
| partOf |
United Kingdom strategic nuclear deterrent
ⓘ
linked to:
Nuclear weapons policy of the United Kingdom
|
| periodOfService | 1990s–present ⓘ |
| powerPlant | Rolls-Royce PWR2 nuclear reactor ⓘ |
| primaryMissile |
UGM-133 Trident II
ⓘ
linked to:
Trident II D5 missile
|
| propulsion | nuclear reactor ⓘ |
| role | seaborne nuclear deterrent ⓘ |
| serviceEntry | 1993 ⓘ |
| speedSubmerged | over 25 knots ⓘ |
| speedSurfaced | over 20 knots ⓘ |
| status | in active service ⓘ |
| strategicRole | nuclear deterrence ⓘ |
| successor | Dreadnought-class submarine ⓘ |
| type | SSBN ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Vanguard-class submarine Description of subject: The Vanguard-class submarine is a class of British nuclear-powered ballistic missile submarines that form the seaborne leg of the United Kingdom’s strategic nuclear deterrent.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Vanguard-class submarine
subject linked to:
Trident
Dreadnought-class nuclear-powered ballistic missile submarines
→
predecessor
→
Vanguard-class submarine
ⓘ
Dreadnought-class nuclear-powered ballistic missile submarines
→
replaces
→
Vanguard-class submarine
ⓘ
subject linked to:
Rolls-Royce PWR2 nuclear reactor