Ohio-class ballistic missile submarine

E377959

ballistic missile submarine nuclear-powered submarine ship class

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.

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All labels observed (7)

Label	Occurrences
Ohio-class ballistic missile submarines	5
Ohio-class submarine	5
Ohio-class ballistic missile submarine canonical	2
Ohio-class SSBN	1
Ohio-class submarines	1
U.S. Navy ballistic missile submarines	1
U.S. ballistic missile submarines	1

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.
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
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	General Dynamics Electric Boat ⓘ linked to: Electric Boat Company Newport News Shipbuilding ⓘ
conversionVariant	Ohio-class guided missile submarine ⓘ
countryOfOrigin	United States ⓘ linked to: United States of America
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, Bangor ⓘ linked to: Naval Base Kitsap Naval Submarine Base Kings Bay ⓘ
hullMaterial	steel ⓘ
launchSystem	vertical missile tubes ⓘ
lengthApproximate	170 meters ⓘ
maximumSubmergedSpeedApproximate	over 20 knots ⓘ
missileTypeCarried	UGM-133 Trident II D5 ⓘ linked to: Trident II D5 missile UGM-96 Trident I ⓘ linked to: Trident I C4
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	Benjamin Franklin-class ballistic missile submarine ⓘ linked to: James Madison-class submarine James Madison-class ballistic missile submarine ⓘ linked to: James Madison-class submarine Lafayette-class ballistic missile submarine ⓘ linked to: Lafayette-class submarine
serviceBranch	United States Navy Submarine Force ⓘ linked to: United States 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 ballistic missile submarine ⓘ linked to: Columbia-class submarine

How these facts were elicited

Referenced by (16)

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

Trident II D5 → deploymentPlatform → Ohio-class ballistic missile submarine ⓘ

subject linked to: Trident II D5 missile

U.S. thermonuclear weapons program → influenced → U.S. ballistic missile submarines ⓘ