W71 warhead
E874691
The W71 warhead was a high-yield American thermonuclear warhead designed primarily for anti-ballistic missile defense applications during the Cold War.
All labels observed (1)
| Label | Occurrences |
|---|---|
| W71 warhead canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10223501 — 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: W71 warhead Context triple: [Nuclear bombs of the United States, hasPart, W71 warhead]
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
W70 warhead
The W70 warhead was a U.S. tactical nuclear warhead best known for arming the MGM-52 Lance missile and existing in both conventional and enhanced-radiation (neutron bomb) variants.
-
E.
W78 warhead
The W78 warhead is an American MIRV-capable thermonuclear warhead designed for deployment on intercontinental ballistic missiles.
- 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: W71 warhead Target entity description: The W71 warhead was a high-yield American thermonuclear warhead designed primarily for anti-ballistic missile defense applications during the Cold War.
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
W70 warhead
The W70 warhead was a U.S. tactical nuclear warhead best known for arming the MGM-52 Lance missile and existing in both conventional and enhanced-radiation (neutron bomb) variants.
-
E.
W78 warhead
The W78 warhead is an American MIRV-capable thermonuclear warhead designed for deployment on intercontinental ballistic missiles.
- F. None of above. chosen
Statements (32)
| Predicate | Object |
|---|---|
| instanceOf |
US nuclear weapon
ⓘ
thermonuclear warhead ⓘ |
| associatedMissile |
Spartan ABM missile
ⓘ
linked to:
LIM-49A Spartan missile
|
| blastEffect | reduced relative to yield ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| deploymentEnd | mid-1970s ⓘ |
| deploymentSite |
Grand Forks, North Dakota Safeguard complex
ⓘ
linked to:
Grand Forks Air Force Base
|
| deploymentStatus | retired ⓘ |
| designedFor |
anti-ballistic missile defense
ⓘ
interception of ICBM reentry vehicles ⓘ |
| designer | Lawrence Livermore National Laboratory ⓘ |
| designGoal | maximize X-ray flux in space ⓘ |
| detonationAltitude | high-altitude / exoatmospheric ⓘ |
| developmentStart | 1960s ⓘ |
| effectEmphasis |
X-ray output
ⓘ
radiation kill mechanism ⓘ |
| era | Cold War ⓘ |
| intendedUse | exosphere interception of incoming warheads ⓘ |
| nuclearWeaponType | thermonuclear ⓘ |
| primaryTarget | incoming ballistic missile warheads ⓘ |
| program | Safeguard Program ⓘ |
| purpose | anti-ballistic missile warhead ⓘ |
| safetyFeature | designed for exoatmospheric use to limit ground damage ⓘ |
| serviceBranch | United States Army ⓘ |
| serviceEntry | early 1970s ⓘ |
| status | no longer deployed ⓘ |
| treatyContext | ABM Treaty era ⓘ |
| usedIn | Safeguard ABM system ⓘ |
| usedOn | LIM-49A Spartan missile ⓘ |
| warheadFamily |
US W-series nuclear warheads
ⓘ
linked to:
U.S. W-series warheads
|
| yield | about 5 megatons of TNT ⓘ |
| yieldType | 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: W71 warhead Description of subject: The W71 warhead was a high-yield American thermonuclear warhead designed primarily for anti-ballistic missile defense applications during the Cold War.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.