Douglas DB-7
E665076
The Douglas DB-7 was an American World War II-era light bomber and attack aircraft that served with multiple Allied air forces and formed the basis for the later Douglas Boston series.
All labels observed (3)
| Label | Occurrences |
|---|---|
| DB‑7 | 1 |
| Douglas DB-7 canonical | 1 |
| Douglas DB-7 series | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7450325 — 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 DB-7 Context triple: [Douglas Boston, developedFrom, Douglas DB-7]
-
A.
Douglas DC-2
The Douglas DC-2 is a pioneering 1930s American twin-engine airliner that helped establish reliable commercial air travel and directly influenced the design of the famous DC-3.
-
B.
Douglas DC-4
The Douglas DC-4 is a four-engine propeller-driven airliner developed in the 1940s that became a widely used long-range civilian transport aircraft after World War II.
-
C.
Martin B‑10
The Martin B‑10 was a pioneering American all-metal monoplane bomber of the 1930s that introduced many modern features such as enclosed cockpits, internal bomb bays, and retractable landing gear.
-
D.
Handley Page Victor
The Handley Page Victor was a British Cold War-era strategic bomber later adapted as an aerial refueling tanker, notable for its role supporting long-range missions such as the Falklands War Black Buck raids.
-
E.
Douglas DC-3
The Douglas DC-3 is a pioneering twin-engine propeller-driven airliner and transport aircraft introduced in the 1930s that revolutionized commercial aviation with its reliability, range, and capacity.
- 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 DB-7 Target entity description: The Douglas DB-7 was an American World War II-era light bomber and attack aircraft that served with multiple Allied air forces and formed the basis for the later Douglas Boston series.
-
A.
Douglas DC-2
The Douglas DC-2 is a pioneering 1930s American twin-engine airliner that helped establish reliable commercial air travel and directly influenced the design of the famous DC-3.
-
B.
Douglas DC-4
The Douglas DC-4 is a four-engine propeller-driven airliner developed in the 1940s that became a widely used long-range civilian transport aircraft after World War II.
-
C.
Martin B‑10
The Martin B‑10 was a pioneering American all-metal monoplane bomber of the 1930s that introduced many modern features such as enclosed cockpits, internal bomb bays, and retractable landing gear.
-
D.
Handley Page Victor
The Handley Page Victor was a British Cold War-era strategic bomber later adapted as an aerial refueling tanker, notable for its role supporting long-range missions such as the Falklands War Black Buck raids.
-
E.
Douglas DC-3
The Douglas DC-3 is a pioneering twin-engine propeller-driven airliner and transport aircraft introduced in the 1930s that revolutionized commercial aviation with its reliability, range, and capacity.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
attack aircraft
ⓘ
light bomber ⓘ |
| aircraftCategory |
attack bomber
ⓘ
tactical bomber ⓘ |
| aircraftConfiguration |
mid-wing monoplane
ⓘ
twin-engine ⓘ |
| alsoKnownAs |
Boston (in British and Commonwealth service)
NERFINISHED
ⓘ
Douglas A-20 (in U.S. service) NERFINISHED ⓘ |
| armament |
defensive machine guns in dorsal and ventral positions
ⓘ
forward-firing machine guns ⓘ |
| bombLoad |
up to 2000 lb of bombs
ⓘ
up to 907 kg of bombs ⓘ |
| construction | all-metal airframe ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| crew | 3 ⓘ |
| designedFor | export to France ⓘ |
| developedInto |
Douglas A-20 Havoc
NERFINISHED
ⓘ
Douglas Boston NERFINISHED ⓘ |
| engineType | radial piston engine ⓘ |
| enteredService | 1940 ⓘ |
| era |
World War II
ⓘ
surface form:
World War II era
|
| firstFlight | 1938 ⓘ |
| landingGear | retractable conventional landing gear ⓘ |
| manufacturer | Douglas Aircraft Company NERFINISHED ⓘ |
| maximumSpeed |
approximately 317 mph
ⓘ
approximately 510 km/h ⓘ |
| natoOrAlliedDesignation | Boston NERFINISHED ⓘ |
| notableTheaterOfOperation |
Eastern Front
NERFINISHED
ⓘ
European Theater of Operations NERFINISHED ⓘ North African Campaign NERFINISHED ⓘ |
| numberOfEngines | 2 ⓘ |
| powerplant | Wright R-2600 Twin Cyclone NERFINISHED ⓘ |
| primaryUser |
French Air Force
NERFINISHED
ⓘ
Royal Air Force ⓘ Soviet Air Force NERFINISHED ⓘ United States Army Air Forces NERFINISHED ⓘ |
| range |
approximately 1100 miles
ⓘ
approximately 1770 km ⓘ |
| role |
ground-attack aircraft
ⓘ
light bomber ⓘ |
| serviceCeiling |
approximately 23000 ft
ⓘ
approximately 7000 m ⓘ |
| usArmyDesignation | A-20 Havoc NERFINISHED ⓘ |
| usedBy |
Royal Australian Air Force
NERFINISHED
ⓘ
Royal Canadian Air Force NERFINISHED ⓘ South African Air Force NERFINISHED ⓘ |
| usedInConflict | World War II ⓘ |
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 DB-7 Description of subject: The Douglas DB-7 was an American World War II-era light bomber and attack aircraft that served with multiple Allied air forces and formed the basis for the later Douglas Boston series.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Douglas DB-7 series
this entity surface form:
DB‑7