Pratt & Whitney R-2000 Twin Wasp
E470208
The Pratt & Whitney R-2000 Twin Wasp is a 14-cylinder, air-cooled radial aircraft engine developed in the 1940s and widely used in medium and large transport aircraft of the era.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Pratt & Whitney R-2000 Twin Wasp canonical | 2 |
| Pratt & Whitney Twin Wasp | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4788314 — 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: Pratt & Whitney R-2000 Twin Wasp Context triple: [Douglas C-54 Skymaster, engineModel, Pratt & Whitney R-2000 Twin Wasp]
-
A.
Pratt & Whitney R-985 Wasp Junior
The Pratt & Whitney R-985 Wasp Junior is a nine-cylinder, air-cooled radial aircraft engine widely used in the 1930s–1950s to power light transports, trainers, and utility aircraft.
-
B.
Pratt & Whitney R-2800 Double Wasp
The Pratt & Whitney R-2800 Double Wasp is a powerful American 18-cylinder air-cooled radial aircraft engine widely used in World War II fighters and bombers.
-
C.
Pratt & Whitney JT3D
The Pratt & Whitney JT3D is an early low-bypass turbofan jet engine widely used on first-generation jet airliners such as the Boeing 707 and Douglas DC-8.
-
D.
Pratt & Whitney Wasp radial engine
The Pratt & Whitney Wasp radial engine is a pioneering air-cooled aircraft engine introduced in the 1920s, renowned for its reliability and widespread use in early commercial and military airplanes.
-
E.
Pratt & Whitney Canada PT6T Twin‑Pac
The Pratt & Whitney Canada PT6T Twin‑Pac is a turboshaft powerplant that combines two PT6 engines into a single gearbox to provide reliable, high-power output for medium-lift helicopters.
- 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: Pratt & Whitney R-2000 Twin Wasp Target entity description: The Pratt & Whitney R-2000 Twin Wasp is a 14-cylinder, air-cooled radial aircraft engine developed in the 1940s and widely used in medium and large transport aircraft of the era.
-
A.
Pratt & Whitney R-985 Wasp Junior
The Pratt & Whitney R-985 Wasp Junior is a nine-cylinder, air-cooled radial aircraft engine widely used in the 1930s–1950s to power light transports, trainers, and utility aircraft.
-
B.
Pratt & Whitney R-2800 Double Wasp
The Pratt & Whitney R-2800 Double Wasp is a powerful American 18-cylinder air-cooled radial aircraft engine widely used in World War II fighters and bombers.
-
C.
Pratt & Whitney JT3D
The Pratt & Whitney JT3D is an early low-bypass turbofan jet engine widely used on first-generation jet airliners such as the Boeing 707 and Douglas DC-8.
-
D.
Pratt & Whitney Wasp radial engine
The Pratt & Whitney Wasp radial engine is a pioneering air-cooled aircraft engine introduced in the 1920s, renowned for its reliability and widespread use in early commercial and military airplanes.
-
E.
Pratt & Whitney Canada PT6T Twin‑Pac
The Pratt & Whitney Canada PT6T Twin‑Pac is a turboshaft powerplant that combines two PT6 engines into a single gearbox to provide reliable, high-power output for medium-lift helicopters.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
aircraft piston engine
ⓘ
radial engine ⓘ |
| applications |
large transport aircraft
ⓘ
medium transport aircraft ⓘ |
| applicationType |
civil airliner
ⓘ
military transport aircraft ⓘ |
| bore | approximately 5.75 inches ⓘ |
| configurationDetail | two-row radial ⓘ |
| coolingMethod | air-cooled ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| cycle | four-stroke ⓘ |
| cylinderConfiguration | radial ⓘ |
| displacement |
2000 cubic inches
ⓘ
approximately 32.8 liters ⓘ |
| era | World War II era NERFINISHED ⓘ |
| family | Pratt & Whitney Twin Wasp NERFINISHED ⓘ |
| firstRun | 1940s ⓘ |
| fuelType | avgas ⓘ |
| ignitionSystem | dual ignition ⓘ |
| manufacturer | Pratt & Whitney NERFINISHED ⓘ |
| mounting | aircraft nose-mounted radial ⓘ |
| notableFeature |
development of the R-1830 with increased displacement
ⓘ
widely used in postwar civil transports ⓘ |
| notableUse | long-range transoceanic transport in the 1940s and 1950s ⓘ |
| numberOfCylinders | 14 ⓘ |
| numberOfRows | 2 ⓘ |
| operator |
United States Air Force
ⓘ
United States Army Air Forces NERFINISHED ⓘ numerous civil airlines worldwide ⓘ |
| predecessor | Pratt & Whitney R-1830 Twin Wasp NERFINISHED ⓘ |
| productionPeriod |
1940s
ⓘ
1950s ⓘ |
| role | transport aircraft powerplant ⓘ |
| stroke | approximately 5.75 inches ⓘ |
| supercharging | single-stage supercharger ⓘ |
| typicalCompressionRatio | around 6.7:1 ⓘ |
| typicalPowerOutput |
approximately 1300 horsepower
ⓘ
up to about 1450 horsepower depending on variant ⓘ |
| usedOnAircraft |
Canadair North Star
NERFINISHED
ⓘ
Douglas C-54 Skymaster NERFINISHED ⓘ Douglas DC-3 (some late or converted variants) NERFINISHED ⓘ Douglas DC-4 NERFINISHED ⓘ Fairchild C-119 Flying Boxcar NERFINISHED ⓘ Fairchild C-82 Packet NERFINISHED ⓘ Grumman HU-16 Albatross (some variants) NERFINISHED ⓘ |
| valvetrain | overhead poppet valves ⓘ |
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: Pratt & Whitney R-2000 Twin Wasp Description of subject: The Pratt & Whitney R-2000 Twin Wasp is a 14-cylinder, air-cooled radial aircraft engine developed in the 1940s and widely used in medium and large transport aircraft of the era.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Pratt & Whitney Twin Wasp
subject surface form:
Pratt & Whitney R-1830 Twin Wasp