Douglas DC-2
E500457
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.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Douglas DC-2 canonical | 5 |
| Douglas DC‑2 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5176849 — 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 DC-2 Context triple: [Douglas Aircraft Company, notableProduct, Douglas DC-2]
-
A.
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.
-
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.
Douglas DC-6
The Douglas DC-6 is a four-engine, propeller-driven airliner and cargo aircraft introduced in the late 1940s, widely used by airlines and militaries around the world for medium- to long-haul flights.
-
D.
Douglas DC-2 (militarized)
The militarized Douglas DC-2 was a twin-engine transport and light bomber aircraft adapted from the civilian DC-2 airliner and employed in combat roles during the Spanish Civil War.
-
E.
Beechcraft C-45 Expeditor
The Beechcraft C-45 Expeditor is a twin-engine military transport and trainer aircraft, derived from the Beechcraft Model 18, that was widely used by the United States and allied air forces from World War II through the postwar 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: Douglas DC-2 Target entity description: 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.
-
A.
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.
-
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.
Douglas DC-6
The Douglas DC-6 is a four-engine, propeller-driven airliner and cargo aircraft introduced in the late 1940s, widely used by airlines and militaries around the world for medium- to long-haul flights.
-
D.
Douglas DC-2 (militarized)
The militarized Douglas DC-2 was a twin-engine transport and light bomber aircraft adapted from the civilian DC-2 airliner and employed in combat roles during the Spanish Civil War.
-
E.
Beechcraft C-45 Expeditor
The Beechcraft C-45 Expeditor is a twin-engine military transport and trainer aircraft, derived from the Beechcraft Model 18, that was widely used by the United States and allied air forces from World War II through the postwar era.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
airliner
ⓘ
twin-engine aircraft ⓘ |
| airlineOperator |
KLM
NERFINISHED
ⓘ
LOT Polish Airlines NERFINISHED ⓘ Lufthansa NERFINISHED ⓘ Pan American Airways NERFINISHED ⓘ Swissair NERFINISHED ⓘ Transcontinental & Western Air NERFINISHED ⓘ |
| category |
1930s United States airliners
ⓘ
Douglas aircraft NERFINISHED ⓘ twin piston-engined tractor aircraft ⓘ |
| configuration | low-wing monoplane ⓘ |
| construction | all-metal ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| crew |
2
ⓘ
3 ⓘ |
| cruiseSpeed | 274 km/h ⓘ |
| developedFrom | Douglas DC-1 NERFINISHED ⓘ |
| developedInto | Douglas DC-3 NERFINISHED ⓘ |
| emptyWeight | 7,940 kg ⓘ |
| engineType | piston engine ⓘ |
| era | 1930s ⓘ |
| firstFlight | 1934-05-11 ⓘ |
| height | 5.08 m ⓘ |
| influenced | Douglas DC-3 design ⓘ |
| introduced | 1934 ⓘ |
| landingGear | retractable tailwheel landing gear ⓘ |
| length | 19.96 m ⓘ |
| manufacturer | Douglas Aircraft Company NERFINISHED ⓘ |
| maximumPassengerCapacity | 14 ⓘ |
| maximumSpeed | 338 km/h ⓘ |
| maximumTakeoffWeight | 11,430 kg ⓘ |
| militaryOperator |
Royal Air Force
NERFINISHED
ⓘ
Royal Netherlands East Indies Army Air Force NERFINISHED ⓘ United States Army Air Corps NERFINISHED ⓘ |
| notableUse | MacRobertson Air Race NERFINISHED ⓘ |
| numberBuilt | 156 ⓘ |
| powerplant | 2 × Wright R-1820 Cyclone radial engines ⓘ |
| range | 1,700 km ⓘ |
| role |
commercial airliner
ⓘ
military transport ⓘ |
| serviceCeiling | 7,620 m ⓘ |
| status | retired ⓘ |
| typicalPassengerCapacity |
14
ⓘ
16 ⓘ |
| wingspan | 25.90 m ⓘ |
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 DC-2 Description of subject: 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.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Douglas DC‑2
subject surface form:
Wright R-1820