Mark 7 nuclear bomb
E860240
The Mark 7 nuclear bomb was an early U.S. tactical fission weapon introduced in the 1950s, notable for being one of the first nuclear bombs with variable yield and compatibility with multiple aircraft.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mark 7 nuclear bomb canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10223462 — 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: Mark 7 nuclear bomb Context triple: [Nuclear bombs of the United States, hasPart, Mark 7 nuclear bomb]
-
A.
Mark 6 nuclear bomb
The Mark 6 nuclear bomb was an early American high-yield, implosion-type nuclear weapon deployed during the early Cold War era.
-
B.
Mark 3 nuclear bomb
The Mark 3 nuclear bomb was an early U.S. atomic weapon, a production version of the "Fat Man" design used at the end of World War II.
-
C.
Mark 1 nuclear bomb
The Mark 1 nuclear bomb, also known as "Little Boy," was the first nuclear weapon used in warfare, dropped by the United States on Hiroshima, Japan, in 1945.
-
D.
Mark 4 nuclear bomb
The Mark 4 nuclear bomb was an early U.S. post–World War II fission weapon derived from the Fat Man design and used during the early Cold War.
-
E.
Mark 8 nuclear bomb
The Mark 8 was an early American nuclear bomb design, notable as a gun-type fission weapon developed in the early Cold War era.
- 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: Mark 7 nuclear bomb Target entity description: The Mark 7 nuclear bomb was an early U.S. tactical fission weapon introduced in the 1950s, notable for being one of the first nuclear bombs with variable yield and compatibility with multiple aircraft.
-
A.
Mark 6 nuclear bomb
The Mark 6 nuclear bomb was an early American high-yield, implosion-type nuclear weapon deployed during the early Cold War era.
-
B.
Mark 3 nuclear bomb
The Mark 3 nuclear bomb was an early U.S. atomic weapon, a production version of the "Fat Man" design used at the end of World War II.
-
C.
Mark 1 nuclear bomb
The Mark 1 nuclear bomb, also known as "Little Boy," was the first nuclear weapon used in warfare, dropped by the United States on Hiroshima, Japan, in 1945.
-
D.
Mark 4 nuclear bomb
The Mark 4 nuclear bomb was an early U.S. post–World War II fission weapon derived from the Fat Man design and used during the early Cold War.
-
E.
Mark 8 nuclear bomb
The Mark 8 was an early American nuclear bomb design, notable as a gun-type fission weapon developed in the early Cold War era.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
fission bomb
ⓘ
tactical nuclear weapon ⓘ |
| approximateNumberBuilt | over 1700 units ⓘ |
| compatibleWithAircraft |
A-4 Skyhawk
ⓘ
B-57 Canberra ⓘ
linked to:
Martin B-57 Canberra
F-100 Super Sabre ⓘ
linked to:
North American F-100 Super Sabre
F-84 Thunderjet ⓘ
linked to:
Republic F-84 Thunderjet
F-84F Thunderstreak ⓘ F-86 Sabre (modified variants) ⓘ
linked to:
North American F-86 Sabre
F2H Banshee ⓘ
linked to:
McDonnell XF2D-1 Banshee
F9F Panther ⓘ
linked to:
Grumman F9F Panther
|
| compatibleWithAircraftType |
attack aircraft
ⓘ
fighter-bomber ⓘ light bomber ⓘ |
| coreMaterial |
highly enriched uranium
ⓘ
plutonium ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| deliveryMode |
dive bombing
ⓘ
level bombing ⓘ toss bombing capable ⓘ |
| deploymentRole |
anti-ship
ⓘ
battlefield support ⓘ tactical strike ⓘ |
| developedBy |
Los Alamos National Laboratory
ⓘ
linked to:
Los Alamos Laboratory
|
| diameter | approximately 30 inches ⓘ |
| enteredService | early 1950s ⓘ |
| guidance | unguided free-fall ⓘ |
| hasDesignFeature |
airburst and contact fuzing options
ⓘ
folding fins ⓘ interchangeable warhead sections ⓘ removable nuclear core ⓘ variable yield ⓘ |
| historicalSignificance |
first widely deployed U.S. tactical nuclear bomb compatible with many fighter aircraft
ⓘ
one of the first U.S. nuclear bombs with variable yield ⓘ |
| introducedInDecade | 1950s ⓘ |
| length | approximately 15 feet ⓘ |
| natoDesignation | Mk 7 ⓘ |
| operatorSafetyFeature | in-flight insertion of nuclear core ⓘ |
| productionStatus | mass produced ⓘ |
| replacedBy |
B43 nuclear bomb
ⓘ
B57 nuclear bomb ⓘ |
| retiredFromService | 1960s ⓘ |
| serviceEntryYear | 1952 ⓘ |
| usedBy |
Royal Air Force
ⓘ
Royal Canadian Air Force ⓘ United States Air Force ⓘ United States Marine Corps ⓘ United States Navy ⓘ |
| warheadType | implosion-type fission warhead ⓘ |
| weight | approximately 1600 pounds ⓘ |
| yieldRange | approximately 8 to 61 kilotons of TNT ⓘ |
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: Mark 7 nuclear bomb Description of subject: The Mark 7 nuclear bomb was an early U.S. tactical fission weapon introduced in the 1950s, notable for being one of the first nuclear bombs with variable yield and compatibility with multiple aircraft.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.