Douglas A-20 Havoc
E428788
The Douglas A-20 Havoc was an American World War II-era light bomber and attack aircraft widely used for low-level bombing, ground attack, and night-fighter missions by several Allied air forces.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Douglas A-20 Havoc canonical | 5 |
| A-20 Havoc | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T4304920 — 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: Douglas A-20 Havoc Context triple: [Italian Co-belligerent Air Force, usedAircraft, Douglas A-20 Havoc]
-
A.
Martin B-26 Marauder
The Martin B-26 Marauder was an American twin‑engine medium bomber used extensively by the U.S. Army Air Forces and Allies during World War II, noted for its speed, heavy armament, and demanding flight characteristics.
-
B.
North American B-25B Mitchell
The North American B-25B Mitchell is a twin‑engine medium bomber used by the United States during World War II, most famously in the 1942 Doolittle Raid on Japan.
-
C.
Douglas A-26 Invader
The Douglas A-26 Invader is a World War II–era American twin‑engine light bomber and ground-attack aircraft that later saw extensive service in the Korean and Vietnam Wars.
-
D.
Republic P-47 Thunderbolt
The Republic P-47 Thunderbolt was a rugged, heavily armed American World War II fighter-bomber renowned for its durability, high-altitude performance, and effective ground-attack capabilities.
-
E.
Curtiss C-46 Commando
The Curtiss C-46 Commando is a large American twin-engine transport aircraft widely used by the U.S. military in World War II for high-altitude, long-range cargo and troop operations.
- 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: Douglas A-20 Havoc Target entity description: The Douglas A-20 Havoc was an American World War II-era light bomber and attack aircraft widely used for low-level bombing, ground attack, and night-fighter missions by several Allied air forces.
-
A.
Martin B-26 Marauder
The Martin B-26 Marauder was an American twin‑engine medium bomber used extensively by the U.S. Army Air Forces and Allies during World War II, noted for its speed, heavy armament, and demanding flight characteristics.
-
B.
North American B-25B Mitchell
The North American B-25B Mitchell is a twin‑engine medium bomber used by the United States during World War II, most famously in the 1942 Doolittle Raid on Japan.
-
C.
Douglas A-26 Invader
The Douglas A-26 Invader is a World War II–era American twin‑engine light bomber and ground-attack aircraft that later saw extensive service in the Korean and Vietnam Wars.
-
D.
Republic P-47 Thunderbolt
The Republic P-47 Thunderbolt was a rugged, heavily armed American World War II fighter-bomber renowned for its durability, high-altitude performance, and effective ground-attack capabilities.
-
E.
Curtiss C-46 Commando
The Curtiss C-46 Commando is a large American twin-engine transport aircraft widely used by the U.S. military in World War II for high-altitude, long-range cargo and troop operations.
- F. None of above. chosen
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
World War II military aircraft
ⓘ
attack aircraft ⓘ light bomber ⓘ |
| alliedCodename | Havoc NERFINISHED ⓘ |
| armament |
defensive machine guns
ⓘ
forward-firing machine guns ⓘ internal bomb load ⓘ |
| bombLoad |
approximately 900 kg of bombs
ⓘ
up to 2,000 lb of bombs ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| crew | 3 ⓘ |
| designation | A-20 NERFINISHED ⓘ |
| engineType | air-cooled radial piston engine ⓘ |
| firstFlight | 1939 ⓘ |
| height | approximately 17 ft 7 in ⓘ |
| length | approximately 48 ft ⓘ |
| manufacturer | Douglas Aircraft Company NERFINISHED ⓘ |
| maximumSpeed |
approximately 317 mph
ⓘ
approximately 510 km/h ⓘ |
| nickName |
Boston
NERFINISHED
ⓘ
Havoc NERFINISHED ⓘ |
| numberBuilt | over 7,000 ⓘ |
| powerplant | 2 × Wright R-2600 Twin Cyclone radial engines ⓘ |
| primaryUser |
Royal Air Force
ⓘ
Soviet Air Forces NERFINISHED ⓘ United States Army Air Forces NERFINISHED ⓘ |
| productionEnd | 1944 ⓘ |
| productionStart | 1939 ⓘ |
| range |
approximately 1,025 miles
ⓘ
approximately 1,650 km ⓘ |
| role |
ground attack aircraft
ⓘ
light bomber ⓘ night fighter ⓘ reconnaissance aircraft ⓘ |
| serviceCeiling |
approximately 23,700 ft
ⓘ
approximately 7,200 m ⓘ |
| serviceEntry | 1941 ⓘ |
| successor | Douglas A-26 Invader NERFINISHED ⓘ |
| theaterOfOperations |
European Theater of Operations
NERFINISHED
ⓘ
North African campaign NERFINISHED ⓘ Pacific Theater of Operations NERFINISHED ⓘ |
| usedBy |
Free French Air Forces
NERFINISHED
ⓘ
Royal Air Force ⓘ Royal Australian Air Force NERFINISHED ⓘ Royal Netherlands East Indies Army Air Force NERFINISHED ⓘ Soviet Air Forces NERFINISHED ⓘ United States Army Air Forces NERFINISHED ⓘ |
| usedFor |
ground attack
ⓘ
low-level bombing ⓘ night-fighter missions ⓘ |
| usedInConflict | World War II ⓘ |
| wingspan | approximately 61 ft 4 in ⓘ |
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: Douglas A-20 Havoc Description of subject: The Douglas A-20 Havoc was an American World War II-era light bomber and attack aircraft widely used for low-level bombing, ground attack, and night-fighter missions by several Allied air forces.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
A-20 Havoc
this entity surface form:
A-20 Havoc
subject surface form:
Waco CG-4
this entity surface form:
A-20 Havoc