Pratt & Whitney Wasp radial engine
E383432
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.
All labels observed (10)
How this entity was disambiguated
This entity first appeared as the object of triple T3751985 — 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 Wasp radial engine Context triple: [Fokker Universal, powerplantExample, Pratt & Whitney Wasp radial engine]
-
A.
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.
-
B.
Wright R-1820 radial engine
The Wright R-1820 radial engine is a widely used American air-cooled, nine-cylinder aircraft engine that powered numerous military and civilian aircraft from the 1930s through World War II and beyond.
-
C.
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.
-
D.
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.
-
E.
Bristol Mercury radial engine
The Bristol Mercury radial engine is a British air-cooled, nine-cylinder aircraft engine widely used in the 1930s and World War II, known for powering numerous fighters and bombers.
- 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 Wasp radial engine Target entity description: 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.
-
A.
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.
-
B.
Wright R-1820 radial engine
The Wright R-1820 radial engine is a widely used American air-cooled, nine-cylinder aircraft engine that powered numerous military and civilian aircraft from the 1930s through World War II and beyond.
-
C.
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.
-
D.
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.
-
E.
Bristol Mercury radial engine
The Bristol Mercury radial engine is a British air-cooled, nine-cylinder aircraft engine widely used in the 1930s and World War II, known for powering numerous fighters and bombers.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
aircraft piston engine
ⓘ
air‑cooled engine ⓘ radial engine ⓘ |
| applicationEra |
1930s
ⓘ
early World War II period (in secondary roles) ⓘ late 1920s ⓘ |
| boreStroke | bore 5.75 in, stroke 5.75 in (approximate for R‑1340 variant) ⓘ |
| compressionRatio | approximately 5.25:1 to 6:1 (depending on variant) ⓘ |
| configuration | single‑row radial ⓘ |
| coolingSystem | air‑cooled ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| designedBy |
George Mead
ⓘ
Pratt & Whitney ⓘ
surface form:
Pratt & Whitney engineering team
|
| displacement | approximately 1,340 cubic inches (R‑1340 variant) ⓘ |
| family |
Pratt & Whitney Wasp series
ⓘ
surface form:
Pratt & Whitney Wasp engine family
|
| firstRun | 1925 ⓘ |
| fuelType | aviation gasoline ⓘ |
| ignitionSystem | dual magneto ⓘ |
| inspiredDevelopmentOf |
Pratt & Whitney Wasp series
ⓘ
surface form:
Pratt & Whitney R‑1340 Wasp series
Pratt & Whitney R-1830 Twin Wasp radial engine ⓘ
surface form:
Pratt & Whitney R‑1830 Twin Wasp
Pratt & Whitney R-2800 Double Wasp ⓘ
surface form:
Pratt & Whitney R‑2800 Double Wasp
Pratt & Whitney R-985 Wasp Junior ⓘ
surface form:
Pratt & Whitney R‑985 Wasp Junior
|
| introducedInDecade | 1920s ⓘ |
| manufacturer | Pratt & Whitney ⓘ |
| notableFor |
high reliability
ⓘ
widespread use in commercial aviation ⓘ widespread use in military aviation ⓘ |
| notableUser |
Amelia Earhart
ⓘ
surface form:
Amelia Earhart (via Lockheed Vega)
Wiley Post ⓘ
surface form:
Wiley Post (via Lockheed Vega)
|
| numberOfCylinders | 9 ⓘ |
| powerOutput |
approximately 400 hp in early versions
ⓘ
up to about 600 hp in later versions ⓘ |
| propellerDrive | direct drive ⓘ |
| status | historical engine ⓘ |
| usedFor | early long‑distance record flights ⓘ |
| usedInAircraft |
Boeing Stearman
ⓘ
surface form:
Boeing F4B
Boeing P‑12 ⓘ Douglas M‑2 ⓘ Douglas O‑2 ⓘ Ford Trimotor (early variants) ⓘ
surface form:
Ford Trimotor (later variants)
Lockheed Sirius ⓘ
surface form:
Lockheed Orion
Lockheed Sirius ⓘ Lockheed Vega ⓘ Sikorsky S‑38 ⓘ Sikorsky S‑40 ⓘ |
| usedInConflict | interwar period military operations ⓘ |
| usedInRole |
airliner powerplant
ⓘ
fighter aircraft powerplant ⓘ military trainer aircraft powerplant ⓘ |
| valvetrain | overhead valve ⓘ |
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 Wasp radial engine Description of subject: 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.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Pratt & Whitney R‑1340 Wasp
this entity surface form:
Pratt & Whitney R‑1340‑AN‑1
this entity surface form:
Pratt & Whitney air‑cooled radial engines
this entity surface form:
Pratt & Whitney Wasp
this entity surface form:
Pratt & Whitney R-1690 Hornet
this entity surface form:
Pratt & Whitney R-1340 Wasp engine
this entity surface form:
Pratt & Whitney R-1690 Hornet engine
this entity surface form:
Pratt & Whitney R-1340 Wasp
this entity surface form:
Pratt & Whitney R‑1340 Wasp radial engine