Dambuster bomb
E229758
The Dambuster bomb was a specially designed World War II British "bouncing bomb" used by RAF 617 Squadron to breach German dams during Operation Chastise in 1943.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Dambuster bomb canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2033550 — 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: Dambuster bomb Context triple: [Upkeep bouncing bomb, alsoKnownAs, Dambuster bomb]
-
A.
Tallboy bomb
The Tallboy bomb was a British World War II "earthquake" bomb designed by Barnes Wallis to destroy heavily fortified and hardened targets through deep-penetration shock waves.
-
B.
V-1 flying bomb
The V-1 flying bomb was an early German cruise missile used in World War II, known as a pilotless "buzz bomb" deployed primarily against London and other Allied cities.
-
C.
Whitley bomber
The Whitley bomber was a British twin-engine, long-range medium bomber used by the Royal Air Force in the early years of World War II for night bombing and maritime patrols.
-
D.
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.
-
E.
Mk 82 bomb
The Mk 82 bomb is a widely used 500-pound general-purpose unguided aerial bomb that serves as the standard warhead for many precision-guided munitions.
- 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: Dambuster bomb Target entity description: The Dambuster bomb was a specially designed World War II British "bouncing bomb" used by RAF 617 Squadron to breach German dams during Operation Chastise in 1943.
-
A.
Tallboy bomb
The Tallboy bomb was a British World War II "earthquake" bomb designed by Barnes Wallis to destroy heavily fortified and hardened targets through deep-penetration shock waves.
-
B.
V-1 flying bomb
The V-1 flying bomb was an early German cruise missile used in World War II, known as a pilotless "buzz bomb" deployed primarily against London and other Allied cities.
-
C.
Whitley bomber
The Whitley bomber was a British twin-engine, long-range medium bomber used by the Royal Air Force in the early years of World War II for night bombing and maritime patrols.
-
D.
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.
-
E.
Mk 82 bomb
The Mk 82 bomb is a widely used 500-pound general-purpose unguided aerial bomb that serves as the standard warhead for many precision-guided munitions.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
aerial bomb
ⓘ
bouncing bomb ⓘ special weapon ⓘ |
| associatedUnit |
617 Squadron
ⓘ
surface form:
617 Squadron "The Dambusters"
|
| category |
World War II British weapons
ⓘ
aerial anti-structure munitions ⓘ anti-dam weapons ⓘ |
| codename | Upkeep ⓘ |
| conflict | World War II ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| deliveryAltitude | about 60 feet above water ⓘ |
| deliveryMethod | low-level bombing ⓘ |
| deliverySpeed | about 220 miles per hour ⓘ |
| designedBy | Barnes Wallis ⓘ |
| designedFor |
attacking German dams
ⓘ
breaching dams ⓘ |
| designerOccupation | aeronautical engineer ⓘ |
| detonationMedium | underwater explosion ⓘ |
| developedBy | Vickers-Armstrongs ⓘ |
| effect | hydraulic shock against dam wall ⓘ |
| era | 1940s ⓘ |
| firstUseDate | 16–17 May 1943 ⓘ |
| intendedEffect | flooding of Ruhr industrial region ⓘ |
| launchPlatform |
Avro Lancaster
ⓘ
surface form:
Avro Lancaster bomber
Avro Lancaster ⓘ
surface form:
Lancaster B Mark III Special
|
| militaryBranch |
Royal Air Force Bomber Command
ⓘ
surface form:
RAF Bomber Command
|
| munitionType | special-purpose bomb ⓘ |
| notableResult |
breach of Eder Dam
ⓘ
breach of Möhne Dam ⓘ |
| notableUse | Operation Chastise ⓘ |
| operation | Operation Chastise ⓘ |
| operationalPrinciple |
bounced across water surface
ⓘ
sank against dam wall before detonation ⓘ skipped over torpedo nets ⓘ |
| purpose | strategic bombing of German industrial capacity ⓘ |
| shape | cylindrical ⓘ |
| spinDirection | backspin ⓘ |
| spinPurpose | to keep bomb against dam wall underwater ⓘ |
| target |
Eder Dam
ⓘ
Möhne Dam ⓘ Sorpe Dam ⓘ |
| theaterOfWar | European theatre of World War II ⓘ |
| usedBy |
No. 617 Squadron RAF
ⓘ
Royal Air Force ⓘ |
| user |
Royal Air Force Bomber Command
ⓘ
surface form:
RAF Bomber Command
|
| yearOfNotableUse | 1943 ⓘ |
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: Dambuster bomb Description of subject: The Dambuster bomb was a specially designed World War II British "bouncing bomb" used by RAF 617 Squadron to breach German dams during Operation Chastise in 1943.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.