Ohio-class ballistic missile submarine
E377959
The Ohio-class ballistic missile submarine is a class of U.S. Navy nuclear-powered submarines designed primarily for strategic nuclear deterrence, carrying long-range submarine-launched ballistic missiles.
All labels observed (7)
How this entity was disambiguated
This entity first appeared as the object of triple T3654210 — 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: Ohio-class ballistic missile submarine Context triple: [Trident II D5, deploymentPlatform, Ohio-class ballistic missile submarine]
-
A.
Columbia-class submarine
The Columbia-class submarine is the U.S. Navy’s next-generation nuclear-powered ballistic missile submarine designed to replace the aging Ohio-class as the backbone of America’s sea-based nuclear deterrent.
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B.
Vanguard-class ballistic missile submarines
Vanguard-class ballistic missile submarines are the United Kingdom’s nuclear-powered, nuclear-armed submarines that form the seaborne leg of its strategic deterrent force.
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C.
Skipjack-class nuclear submarines
The Skipjack-class nuclear submarines were a pioneering class of fast attack submarines in the U.S. Navy, notable for their teardrop hull design and enhanced underwater speed and maneuverability during the Cold War era.
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D.
Triomphant-class ballistic missile submarines
The Triomphant-class ballistic missile submarines are France’s current generation of nuclear-powered strategic deterrent submarines, designed to carry and launch submarine-launched ballistic missiles as part of the French nuclear arsenal.
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E.
Virginia-class submarine
The Virginia-class submarine is a class of nuclear-powered fast attack submarines used by the United States Navy, designed for a broad range of open-ocean and littoral missions with advanced stealth, surveillance, and strike capabilities.
- 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: Ohio-class ballistic missile submarine Target entity description: The Ohio-class ballistic missile submarine is a class of U.S. Navy nuclear-powered submarines designed primarily for strategic nuclear deterrence, carrying long-range submarine-launched ballistic missiles.
-
A.
Columbia-class submarine
The Columbia-class submarine is the U.S. Navy’s next-generation nuclear-powered ballistic missile submarine designed to replace the aging Ohio-class as the backbone of America’s sea-based nuclear deterrent.
-
B.
Vanguard-class ballistic missile submarines
Vanguard-class ballistic missile submarines are the United Kingdom’s nuclear-powered, nuclear-armed submarines that form the seaborne leg of its strategic deterrent force.
-
C.
Skipjack-class nuclear submarines
The Skipjack-class nuclear submarines were a pioneering class of fast attack submarines in the U.S. Navy, notable for their teardrop hull design and enhanced underwater speed and maneuverability during the Cold War era.
-
D.
Triomphant-class ballistic missile submarines
The Triomphant-class ballistic missile submarines are France’s current generation of nuclear-powered strategic deterrent submarines, designed to carry and launch submarine-launched ballistic missiles as part of the French nuclear arsenal.
-
E.
Virginia-class submarine
The Virginia-class submarine is a class of nuclear-powered fast attack submarines used by the United States Navy, designed for a broad range of open-ocean and littoral missions with advanced stealth, surveillance, and strike capabilities.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
ballistic missile submarine
ⓘ
nuclear-powered submarine ⓘ ship class ⓘ |
| beamApproximate | 13 meters ⓘ |
| builder |
Electric Boat Company
ⓘ
surface form:
General Dynamics Electric Boat
Newport News Shipbuilding ⓘ |
| conversionVariant | Ohio-class guided missile submarine ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| crewComplementApproximate | 155 ⓘ |
| crewSystem | two-crew blue and gold system ⓘ |
| designedBy | United States Navy ⓘ |
| designedFor | Cold War nuclear deterrent patrols ⓘ |
| designFeature |
enhanced quieting measures
ⓘ
long-endurance submerged patrol capability ⓘ |
| draftApproximate | 12 meters ⓘ |
| firstOfClass | USS Ohio (SSBN-726) ⓘ |
| homeport |
Naval Base Kitsap
ⓘ
surface form:
Naval Base Kitsap, Bangor
Naval Submarine Base Kings Bay ⓘ |
| hullMaterial | steel ⓘ |
| launchSystem | vertical missile tubes ⓘ |
| lengthApproximate | 170 meters ⓘ |
| maximumSubmergedSpeedApproximate | over 20 knots ⓘ |
| missileTypeCarried |
Trident II D5 missile
ⓘ
surface form:
UGM-133 Trident II D5
Trident I C4 ⓘ
surface form:
UGM-96 Trident I
|
| natoReportingName | SSBN ⓘ |
| nuclearReactorType | pressurized-water reactor ⓘ |
| nuclearWarheadDeliveryCapability | multiple independently targetable reentry vehicles ⓘ |
| numberBuilt | 18 ⓘ |
| numberOfMissileTubesOriginalSSBN | 24 ⓘ |
| numberOfSSBNConfiguredBoats | 14 ⓘ |
| numberOfSSGNConvertedBoats | 4 ⓘ |
| operator | United States Navy ⓘ |
| patrolType | deterrent patrol ⓘ |
| primaryArmament | submarine-launched ballistic missile ⓘ |
| primaryRole | strategic nuclear deterrence ⓘ |
| propulsion | nuclear reactor ⓘ |
| propulsionDetails |
one S8G pressurized-water nuclear reactor
ⓘ
single shaft with pump-jet propulsor ⓘ |
| replaced |
James Madison-class submarine
ⓘ
surface form:
Benjamin Franklin-class ballistic missile submarine
James Madison-class submarine ⓘ
surface form:
James Madison-class ballistic missile submarine
Lafayette-class submarine ⓘ
surface form:
Lafayette-class ballistic missile submarine
|
| serviceBranch |
United States Submarine Force
ⓘ
surface form:
United States Navy Submarine Force
|
| serviceEntryYear | 1981 ⓘ |
| status | in service ⓘ |
| strategicRole | sea-based leg of the U.S. nuclear triad ⓘ |
| submergedDisplacementApproximate | 18750 long tons ⓘ |
| testDepthApproximate | over 240 meters ⓘ |
| willBeReplacedBy |
Columbia-class submarine
ⓘ
surface form:
Columbia-class ballistic missile submarine
|
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: Ohio-class ballistic missile submarine Description of subject: The Ohio-class ballistic missile submarine is a class of U.S. Navy nuclear-powered submarines designed primarily for strategic nuclear deterrence, carrying long-range submarine-launched ballistic missiles.
Referenced by (16)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Trident II D5
this entity surface form:
U.S. ballistic missile submarines
this entity surface form:
Ohio-class ballistic missile submarines
this entity surface form:
Ohio-class submarine
subject surface form:
Trident II
this entity surface form:
Ohio-class submarine
this entity surface form:
Ohio-class ballistic missile submarines
this entity surface form:
Ohio-class ballistic missile submarines
this entity surface form:
Ohio-class submarines
this entity surface form:
Ohio-class submarine
this entity surface form:
Ohio-class submarine
this entity surface form:
Ohio-class submarine
this entity surface form:
U.S. Navy ballistic missile submarines
this entity surface form:
Ohio-class ballistic missile submarines
this entity surface form:
Ohio-class ballistic missile submarines
this entity surface form:
Ohio-class SSBN