W47 warhead

E437956

nuclear warhead variant nuclear weapon thermonuclear warhead

The W47 warhead was a compact American thermonuclear warhead designed primarily for deployment on Polaris submarine-launched ballistic missiles during the Cold War.

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All labels observed (3)

Label	Occurrences
W47 warhead canonical	2
U.S. W-series nuclear warheads	1
W47 thermonuclear warhead	1

How this entity was disambiguated

This entity first appeared as the object of triple T4407890 — 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: W47 warhead
Context triple: [U.S. thermonuclear weapons program, developedWeapon, W47 warhead]

A. W76 thermonuclear warhead
The W76 thermonuclear warhead is a U.S. Navy submarine-launched ballistic missile warhead designed for strategic nuclear deterrence, featuring a compact design and variable-yield capabilities.
B. BLU-109 bomb
The BLU-109 bomb is a U.S.-designed hardened-penetrator warhead used to destroy reinforced or deeply buried targets, often integrated into precision-guided munition systems.
C. W88 thermonuclear warhead
The W88 thermonuclear warhead is a compact, high-yield U.S. nuclear warhead designed for deployment on submarine-launched ballistic missiles.
D. Mk 84 bomb
The Mk 84 bomb is a 2,000-pound class general-purpose unguided bomb widely used by the U.S. and allied air forces as the warhead basis for various precision-guided munitions.
E. Mk 83 bomb
The Mk 83 bomb is a 1,000-pound class general-purpose unguided aerial bomb widely used by military aircraft and often employed as the warhead for various precision-guided munition systems.
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: W47 warhead
Target entity description: The W47 warhead was a compact American thermonuclear warhead designed primarily for deployment on Polaris submarine-launched ballistic missiles during the Cold War.

A. W76 thermonuclear warhead
The W76 thermonuclear warhead is a U.S. Navy submarine-launched ballistic missile warhead designed for strategic nuclear deterrence, featuring a compact design and variable-yield capabilities.
B. BLU-109 bomb
The BLU-109 bomb is a U.S.-designed hardened-penetrator warhead used to destroy reinforced or deeply buried targets, often integrated into precision-guided munition systems.
C. W88 thermonuclear warhead
The W88 thermonuclear warhead is a compact, high-yield U.S. nuclear warhead designed for deployment on submarine-launched ballistic missiles.
D. Mk 84 bomb
The Mk 84 bomb is a 2,000-pound class general-purpose unguided bomb widely used by the U.S. and allied air forces as the warhead basis for various precision-guided munitions.
E. Mk 83 bomb
The Mk 83 bomb is a 1,000-pound class general-purpose unguided aerial bomb widely used by military aircraft and often employed as the warhead for various precision-guided munition systems.
F. None of above. chosen

Statements (44)

Predicate	Object
instanceOf	nuclear warhead variant ⓘ nuclear warhead variant ⓘ nuclear weapon ⓘ thermonuclear warhead ⓘ
associatedMissileSystem	Fleet Ballistic Missile system ⓘ
associatedProgram	Polaris SLBM program ⓘ
compactDesign	true ⓘ
countryOfOrigin	United States ⓘ linked to: United States of America
countryService	United States ⓘ linked to: United States of America
deliveryMethod	submarine-launched ballistic missile ⓘ
deployedOn	Ethan Allen-class submarine ⓘ George Washington-class submarine ⓘ Lafayette-class submarine ⓘ
deploymentEnvironment	submarine ⓘ
deploymentPlatform	ballistic missile submarine ⓘ submarine-launched ballistic missile ⓘ
designer	U.S. nuclear weapons laboratories ⓘ linked to: United States nuclear weapons complex United States Atomic Energy Commission ⓘ
designGoal	compact size for SLBM use ⓘ high-yield thermonuclear capability ⓘ
deterrenceDoctrine	mutually assured destruction ⓘ
era	Cold War ⓘ
guidanceContext	ballistic trajectory ⓘ
historicalContext	early U.S. SLBM development ⓘ
launchPlatformType	nuclear-powered submarine ⓘ
nuclearStageCount	two ⓘ
nuclearWeaponType	two-stage thermonuclear ⓘ
primaryUse	sea-based nuclear deterrent ⓘ
propellantContext	solid-fueled missile system ⓘ
role	strategic deterrent ⓘ
serviceBranch	United States Navy Strategic Systems Programs ⓘ
status	retired ⓘ
strategicRole	second-strike capability ⓘ
technologyDomain	nuclear weapons engineering ⓘ
theater	global strategic theater ⓘ
usedBy	United States Navy ⓘ
usedIn	Polaris A-1 missile ⓘ linked to: Polaris missile system Polaris A-2 missile ⓘ linked to: Polaris missile system Polaris A-3 missile ⓘ linked to: Polaris missile system UGM-27 Polaris missile ⓘ linked to: Polaris missile system
warheadClass	strategic thermonuclear warhead ⓘ
warheadFamily	U.S. W-series nuclear warheads ⓘ linked to: W47 warhead
yieldVariant	W47Y1 ⓘ W47Y2 ⓘ

How these facts were elicited

Referenced by (4)

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

U.S. thermonuclear weapons program → developedWeapon → W47 warhead ⓘ

Polaris missile system → warheadType → W47 thermonuclear warhead ⓘ

linked to: W47 warhead

Nuclear bombs of the United States → hasPart → W47 warhead ⓘ

W47 warhead → warheadFamily → U.S. W-series nuclear warheads ⓘ