Pratt & Whitney R-2800 Double Wasp
E191428
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.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Pratt & Whitney R-2800 Double Wasp canonical | 10 |
| Pratt & Whitney R-2800 Double Wasp radial engine | 2 |
| Pratt & Whitney R‑2800 Double Wasp | 2 |
| Pratt & Whitney Double Wasp | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1689655 — 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-2800 Double Wasp Context triple: [Republic P-47 Thunderbolt, engineType, Pratt & Whitney R-2800 Double Wasp]
-
A.
Wright R-3350 Duplex-Cyclone radial engine
The Wright R-3350 Duplex-Cyclone is a powerful American 18-cylinder air-cooled radial aircraft engine widely used in World War II and early postwar bombers and airliners.
-
B.
Pratt & Whitney R-1830 Twin Wasp radial engine
The Pratt & Whitney R-1830 Twin Wasp is a widely used American 14-cylinder air-cooled radial aircraft engine of the World War II era, powering numerous fighters, bombers, and transport aircraft.
-
C.
Bristol Hercules radial engine
The Bristol Hercules radial engine was a British air-cooled, sleeve-valve aircraft engine widely used in World War II bombers and other military aircraft for its reliability and high power output.
-
D.
Allison V-1710
The Allison V-1710 is an American liquid-cooled V-12 aircraft engine widely used in World War II fighters, including early variants of the P-51 Mustang and the P-38 Lightning.
-
E.
Bristol Pegasus radial engine
The Bristol Pegasus radial engine was a widely used British air-cooled aircraft engine of the interwar and World War II era, powering numerous bombers and transport aircraft.
- 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-2800 Double Wasp Target entity description: 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.
-
A.
Wright R-3350 Duplex-Cyclone radial engine
The Wright R-3350 Duplex-Cyclone is a powerful American 18-cylinder air-cooled radial aircraft engine widely used in World War II and early postwar bombers and airliners.
-
B.
Pratt & Whitney R-1830 Twin Wasp radial engine
The Pratt & Whitney R-1830 Twin Wasp is a widely used American 14-cylinder air-cooled radial aircraft engine of the World War II era, powering numerous fighters, bombers, and transport aircraft.
-
C.
Bristol Hercules radial engine
The Bristol Hercules radial engine was a British air-cooled, sleeve-valve aircraft engine widely used in World War II bombers and other military aircraft for its reliability and high power output.
-
D.
Allison V-1710
The Allison V-1710 is an American liquid-cooled V-12 aircraft engine widely used in World War II fighters, including early variants of the P-51 Mustang and the P-38 Lightning.
-
E.
Bristol Pegasus radial engine
The Bristol Pegasus radial engine was a widely used British air-cooled aircraft engine of the interwar and World War II era, powering numerous bombers and transport aircraft.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
aircraft engine
ⓘ
piston engine ⓘ radial engine ⓘ |
| application |
bomber aircraft
ⓘ
fighter aircraft ⓘ transport aircraft ⓘ |
| bore | 5.75 in ⓘ |
| configuration | 18-cylinder radial ⓘ |
| coolingSystem | air-cooled ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| cylinderRows | 2 ⓘ |
| cylindersPerRow | 9 ⓘ |
| displacement |
2800 cubic inches
ⓘ
45.9 liters ⓘ |
| enteredService | 1940s ⓘ |
| era | World War II ⓘ |
| family | Pratt & Whitney Wasp series ⓘ |
| firstRun | 1937 ⓘ |
| fuelSystem |
carbureted
ⓘ
fuel injected ⓘ |
| fuelType | aviation gasoline ⓘ |
| ignitionSystem | dual ignition ⓘ |
| manufacturer | Pratt & Whitney ⓘ |
| nickname | Double Wasp ⓘ |
| notableFeature |
high power-to-weight ratio
ⓘ
reliability ⓘ widespread use in US Navy and USAAF aircraft ⓘ |
| powerOutput |
approximately 2000 horsepower
ⓘ
up to about 2500 horsepower in later versions ⓘ |
| productionPeriod | late 1930s to early 1950s ⓘ |
| stroke | 6.0 in ⓘ |
| successor | Pratt & Whitney R-4360 Wasp Major ⓘ |
| supercharger |
single-stage
ⓘ
two-stage ⓘ |
| usedInAircraft |
Bristol Beaufighter
ⓘ
surface form:
Bristol Beaufighter (some variants)
Convair 240 ⓘ
surface form:
Convair CV-240
Douglas A-26 Invader ⓘ Douglas C-54 Skymaster ⓘ Douglas DC-6 ⓘ Grumman F6F Hellcat ⓘ Martin B-26 Marauder ⓘ Northrop P-61 Black Widow ⓘ Republic P-47 Thunderbolt ⓘ Vought F4U Corsair ⓘ |
| usedInConflict |
Korean War
ⓘ
World War II ⓘ |
| valvetrain | two valves per cylinder ⓘ |
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-2800 Double Wasp Description of subject: 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.
Referenced by (15)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Pratt & Whitney Double Wasp
subject surface form:
Pratt & Whitney R-1830 Twin Wasp
subject surface form:
Republic P-47 Thunderbolt
this entity surface form:
Pratt & Whitney R-2800 Double Wasp radial engine
this entity surface form:
Pratt & Whitney R‑2800 Double Wasp
this entity surface form:
Pratt & Whitney R-2800 Double Wasp radial engine
subject surface form:
Pratt & Whitney Wasp
this entity surface form:
Pratt & Whitney R‑2800 Double Wasp