W56 warhead
E861281
The W56 warhead is a high-yield thermonuclear warhead developed by the United States during the Cold War, primarily deployed on Minuteman intercontinental ballistic missiles.
All labels observed (1)
| Label | Occurrences |
|---|---|
| W56 warhead canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10223494 — 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: W56 warhead Context triple: [Nuclear bombs of the United States, hasPart, W56 warhead]
-
A.
W62 warhead
The W62 warhead is a U.S. thermonuclear warhead developed during the Cold War for use on intercontinental ballistic missiles, notably the Minuteman III.
-
B.
W47 warhead
The W47 warhead was a compact American thermonuclear warhead designed primarily for deployment on Polaris submarine-launched ballistic missiles during the Cold War.
-
C.
W78 warhead
The W78 warhead is an American MIRV-capable thermonuclear warhead designed for deployment on intercontinental ballistic missiles.
-
D.
W87 warhead
The W87 warhead is an American MIRV-capable thermonuclear warhead originally designed for the LGM-118A Peacekeeper intercontinental ballistic missile and later adapted for use on Minuteman III ICBMs.
-
E.
W80 warhead
The W80 warhead is a U.S. thermonuclear warhead designed for use on cruise missiles, notably deployed on systems like the Air-Launched Cruise Missile (ALCM) and Tomahawk.
- 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: W56 warhead Target entity description: The W56 warhead is a high-yield thermonuclear warhead developed by the United States during the Cold War, primarily deployed on Minuteman intercontinental ballistic missiles.
-
A.
W62 warhead
The W62 warhead is a U.S. thermonuclear warhead developed during the Cold War for use on intercontinental ballistic missiles, notably the Minuteman III.
-
B.
W47 warhead
The W47 warhead was a compact American thermonuclear warhead designed primarily for deployment on Polaris submarine-launched ballistic missiles during the Cold War.
-
C.
W78 warhead
The W78 warhead is an American MIRV-capable thermonuclear warhead designed for deployment on intercontinental ballistic missiles.
-
D.
W87 warhead
The W87 warhead is an American MIRV-capable thermonuclear warhead originally designed for the LGM-118A Peacekeeper intercontinental ballistic missile and later adapted for use on Minuteman III ICBMs.
-
E.
W80 warhead
The W80 warhead is a U.S. thermonuclear warhead designed for use on cruise missiles, notably deployed on systems like the Air-Launched Cruise Missile (ALCM) and Tomahawk.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf | thermonuclear warhead ⓘ |
| classification | ICBM warhead ⓘ |
| compatibleReentryVehicle |
Mk-11 reentry vehicle
ⓘ
Mk-11C reentry vehicle ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| deliverySystem |
ballistic missile
ⓘ
intercontinental ballistic missile ⓘ |
| deployedWarheadCountPeak | over 1000 units ⓘ |
| deploymentMode | single-warhead ICBM ⓘ |
| deploymentPlatformType | land-based ICBM ⓘ |
| deploymentRole | strategic nuclear deterrent ⓘ |
| deploymentStart | 1963 ⓘ |
| designedAt | Lawrence Livermore National Laboratory ⓘ |
| designedBy |
Lawrence Radiation Laboratory
ⓘ
linked to:
Lawrence Livermore National Laboratory
|
| designFeatures |
miniaturized thermonuclear design
ⓘ
reentry vehicle integration ⓘ |
| designYield |
1.2 megatons of TNT
ⓘ
approximately 1.2 Mt ⓘ |
| developedBy |
United States
ⓘ
linked to:
United States of America
|
| developedFor |
LGM-30 Minuteman
ⓘ
linked to:
LGM-30 Minuteman ICBM
intercontinental ballistic missile ⓘ |
| enteredService | mid-1960s ⓘ |
| era | Cold War ⓘ |
| followedBy |
W78 warhead
ⓘ
W87 warhead ⓘ |
| generation | second-generation thermonuclear design ⓘ |
| governingProgram | US nuclear weapons stockpile ⓘ |
| guidance | none (carried by missile guidance system) ⓘ |
| nuclearWeaponType | two-stage thermonuclear ⓘ |
| precededBy | earlier high-yield ICBM warheads ⓘ |
| propulsion | none (payload only) ⓘ |
| purpose | strategic deterrence against Soviet Union ⓘ |
| retired | 1993 ⓘ |
| retirementPeriod | early 1990s ⓘ |
| safetyFeatures | enhanced nuclear safety mechanisms ⓘ |
| serviceBranch | United States Air Force ⓘ |
| status |
no longer deployed
ⓘ
retired ⓘ |
| strategicUse |
counterforce targeting
ⓘ
countervalue targeting ⓘ |
| treatyStatus | removed from deployment prior to New START ⓘ |
| usedBy | Strategic Air Command ⓘ |
| usedOnWeaponSystem |
LGM-30A Minuteman I
ⓘ
linked to:
LGM-30 Minuteman ICBM
LGM-30B Minuteman I ⓘ
linked to:
LGM-30 Minuteman ICBM
LGM-30F Minuteman II ⓘ
linked to:
Minuteman II ICBM
|
| warheadFamily | US strategic thermonuclear warheads ⓘ |
| yieldClass | high-yield ⓘ |
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: W56 warhead Description of subject: The W56 warhead is a high-yield thermonuclear warhead developed by the United States during the Cold War, primarily deployed on Minuteman intercontinental ballistic missiles.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.