B41 nuclear bomb
E437955
The B41 nuclear bomb was a high-yield, Cold War–era American thermonuclear gravity bomb and one of the most powerful nuclear weapons ever deployed by the United States.
All labels observed (2)
| Label | Occurrences |
|---|---|
| B41 nuclear bomb canonical | 1 |
| Mark 41 nuclear bomb | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4407889 — 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: B41 nuclear bomb Context triple: [U.S. thermonuclear weapons program, developedWeapon, B41 nuclear bomb]
-
A.
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.
-
B.
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.
-
C.
Ivy Mike
Ivy Mike was the first successful full-scale test of a thermonuclear (hydrogen) bomb conducted by the United States in 1952.
-
D.
Little Boy
Little Boy was the codename for the uranium-based atomic bomb dropped on Hiroshima, Japan, by the United States on August 6, 1945, marking the first use of nuclear weapons in warfare.
-
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: B41 nuclear bomb Target entity description: The B41 nuclear bomb was a high-yield, Cold War–era American thermonuclear gravity bomb and one of the most powerful nuclear weapons ever deployed by the United States.
-
A.
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.
-
B.
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.
-
C.
Ivy Mike
Ivy Mike was the first successful full-scale test of a thermonuclear (hydrogen) bomb conducted by the United States in 1952.
-
D.
Little Boy
Little Boy was the codename for the uranium-based atomic bomb dropped on Hiroshima, Japan, by the United States on August 6, 1945, marking the first use of nuclear weapons in warfare.
-
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 (41)
| Predicate | Object |
|---|---|
| instanceOf |
nuclear weapon
ⓘ
thermonuclear gravity bomb ⓘ |
| alsoKnownAs |
Mark 41 nuclear bomb
NERFINISHED
ⓘ
Mk 41 nuclear bomb ⓘ |
| belongsToCategory |
American nuclear bombs
ⓘ
Cold War nuclear weapons of the United States NERFINISHED ⓘ |
| compatibleWith | B-52 Stratofortress NERFINISHED ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| deliveryMethod | air-dropped gravity bomb ⓘ |
| deploymentEnd | 1976 ⓘ |
| deploymentMode | free-fall bomb ⓘ |
| deploymentPlatformType | strategic bomber aircraft ⓘ |
| deploymentStart | 1960 ⓘ |
| designedAs | strategic nuclear weapon ⓘ |
| designedBy | U.S. nuclear weapons laboratories ⓘ |
| designedFor | long-range strategic bombers ⓘ |
| designedToBe | one of the most powerful deployable U.S. nuclear weapons ⓘ |
| designType | three-stage thermonuclear design ⓘ |
| developedBy |
U.S. nuclear weapons complex
NERFINISHED
ⓘ
United States Air Force NERFINISHED ⓘ |
| era | Cold War era ⓘ |
| fuzingOptions |
air burst
ⓘ
contact burst ⓘ |
| hasComponent |
primary fission stage
ⓘ
secondary fusion stage ⓘ tertiary fusion stage ⓘ |
| inServiceWith | United States Air Force NERFINISHED ⓘ |
| isPartOf | United States nuclear arsenal NERFINISHED ⓘ |
| maximumYield |
about 25 megatons of TNT
ⓘ
one of the highest-yield U.S. nuclear weapons ever deployed ⓘ |
| natoReportingName | B41 NERFINISHED ⓘ |
| nuclearWeaponClass | high-yield thermonuclear bomb ⓘ |
| replaced | earlier high-yield U.S. thermonuclear bombs ⓘ |
| role | strategic deterrent ⓘ |
| safetyFeature | designed with contemporary U.S. nuclear weapon safety practices ⓘ |
| status | retired ⓘ |
| usedDuring | Cold War ⓘ |
| usedFor | massive strategic strike capability ⓘ |
| warheadType | thermonuclear ⓘ |
| wasReplacedBy | newer U.S. strategic nuclear weapons ⓘ |
| yieldType | variable 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: B41 nuclear bomb Description of subject: The B41 nuclear bomb was a high-yield, Cold War–era American thermonuclear gravity bomb and one of the most powerful nuclear weapons ever deployed by the United States.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Mark 41 nuclear bomb