Nakajima Homare radial engine
E753069
The Nakajima Homare was a powerful Japanese air-cooled radial aircraft engine used in several late-World War II Imperial Japanese Navy and Army fighters.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Nakajima Homare radial engine canonical | 2 |
| 1 × Nakajima NK9B Homare 11 radial engine | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8725763 — 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: Nakajima Homare radial engine Context triple: [Kawanishi N1K, engineType, Nakajima Homare radial engine]
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A.
Nakajima Sakae radial engine
The Nakajima Sakae radial engine was a widely used Japanese air-cooled aircraft engine of World War II, best known for powering frontline Imperial Japanese Navy and Army fighters and bombers such as the Mitsubishi A6M Zero.
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B.
Nakajima Mamoru 11 radial engine
The Nakajima Mamoru 11 was a Japanese air-cooled radial aircraft engine developed during World War II to power carrier-based aircraft such as the B6N Tenzan torpedo bomber.
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C.
Nakajima Ha-5 radial engine
The Nakajima Ha-5 was a Japanese air-cooled radial aircraft engine of the 1930s, used to power several early World War II Imperial Japanese Army bombers and transports.
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D.
Nakajima Ha-1b radial engine
The Nakajima Ha-1b was a Japanese air-cooled radial aircraft engine used in pre–World War II and early-war fighters such as the Nakajima Ki-27.
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E.
Nakajima Ha-25 radial engine
The Nakajima Ha-25 was a Japanese air-cooled radial aircraft engine widely used in World War II fighters, noted for its reliability and compact design.
- 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: Nakajima Homare radial engine Target entity description: The Nakajima Homare was a powerful Japanese air-cooled radial aircraft engine used in several late-World War II Imperial Japanese Navy and Army fighters.
-
A.
Nakajima Sakae radial engine
The Nakajima Sakae radial engine was a widely used Japanese air-cooled aircraft engine of World War II, best known for powering frontline Imperial Japanese Navy and Army fighters and bombers such as the Mitsubishi A6M Zero.
-
B.
Nakajima Mamoru 11 radial engine
The Nakajima Mamoru 11 was a Japanese air-cooled radial aircraft engine developed during World War II to power carrier-based aircraft such as the B6N Tenzan torpedo bomber.
-
C.
Nakajima Ha-5 radial engine
The Nakajima Ha-5 was a Japanese air-cooled radial aircraft engine of the 1930s, used to power several early World War II Imperial Japanese Army bombers and transports.
-
D.
Nakajima Ha-1b radial engine
The Nakajima Ha-1b was a Japanese air-cooled radial aircraft engine used in pre–World War II and early-war fighters such as the Nakajima Ki-27.
-
E.
Nakajima Ha-25 radial engine
The Nakajima Ha-25 was a Japanese air-cooled radial aircraft engine widely used in World War II fighters, noted for its reliability and compact design.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
air-cooled engine
ⓘ
aircraft engine ⓘ |
| alsoKnownAs |
Ha-45
NERFINISHED
ⓘ
Nakajima NK9 NERFINISHED ⓘ |
| application |
dive bomber
ⓘ
fighter aircraft ⓘ reconnaissance aircraft ⓘ torpedo bomber ⓘ |
| configuration | 18-cylinder radial ⓘ |
| coolingSystem | air-cooled ⓘ |
| countryOfOrigin | Japan ⓘ |
| cylinderArrangement | two-row radial ⓘ |
| designGoal | compact high-power engine for carrier fighters ⓘ |
| developedFrom | Nakajima Sakae NERFINISHED ⓘ |
| era | late World War II ⓘ |
| fuelType | aviation gasoline ⓘ |
| historicalRole | main late-war high-output Japanese radial engine ⓘ |
| introducedInDecade | 1940s ⓘ |
| manufacturer | Nakajima Aircraft Company NERFINISHED ⓘ |
| notableFor |
high power-to-weight ratio
ⓘ
mechanical complexity ⓘ reliability problems in service ⓘ |
| powerOutputClass | approximately 1800–2000 horsepower ⓘ |
| productionStatus | mass-produced during World War II ⓘ |
| serviceBranch |
army aviation
ⓘ
naval aviation ⓘ |
| successor | postwar Japanese radial engine designs influenced by its layout ⓘ |
| supercharger | single-stage supercharger ⓘ |
| usedBy |
Axis powers (Japan)
NERFINISHED
ⓘ
Imperial Japanese Army Air Service NERFINISHED ⓘ Imperial Japanese Navy NERFINISHED ⓘ |
| usedInAircraft |
Aichi B7A Ryusei
NERFINISHED
ⓘ
Kawanishi N1K-J Shiden NERFINISHED ⓘ Kawanishi N1K2-J Shiden-Kai NERFINISHED ⓘ Kawasaki Ki-100 (early prototypes / testbeds) NERFINISHED ⓘ Mitsubishi A7M (some prototypes) NERFINISHED ⓘ Nakajima C6N Saiun NERFINISHED ⓘ Nakajima Ki-84 Hayate NERFINISHED ⓘ Yokosuka P1Y Ginga NERFINISHED ⓘ |
| usedInConflict | World War II ⓘ |
| valvetrain | 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: Nakajima Homare radial engine Description of subject: The Nakajima Homare was a powerful Japanese air-cooled radial aircraft engine used in several late-World War II Imperial Japanese Navy and Army fighters.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Nakajima Homare radial engine