Pratt & Whitney R-1820 radial engine
E1437453
UNEXPLORED
The Pratt & Whitney R-1820 is a single-row, nine-cylinder air-cooled radial aircraft engine widely used in many American military and civilian aircraft from the 1930s through World War II.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Pratt & Whitney R-1820 radial engine canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T20539111 — 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-1820 radial engine Context triple: [Douglas DC-5, powerplant, Pratt & Whitney R-1820 radial engine]
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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.
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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 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.
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D.
Pratt & Whitney R-1535 Twin Wasp Junior radial engine
The Pratt & Whitney R-1535 Twin Wasp Junior is a 14-cylinder, air-cooled radial aircraft engine developed in the 1930s, widely used in high-performance racing and military aircraft of its era.
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E.
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.
- 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-1820 radial engine Target entity description: The Pratt & Whitney R-1820 is a single-row, nine-cylinder air-cooled radial aircraft engine widely used in many American military and civilian aircraft from the 1930s through World War II.
-
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 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.
-
D.
Pratt & Whitney R-1535 Twin Wasp Junior radial engine
The Pratt & Whitney R-1535 Twin Wasp Junior is a 14-cylinder, air-cooled radial aircraft engine developed in the 1930s, widely used in high-performance racing and military aircraft of its era.
-
E.
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.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.