Napier Rapier
E878364
The Napier Rapier was a British air-cooled, 16-cylinder H-type aircraft engine developed in the early 1930s for light aircraft and racing planes.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Napier Dagger | 1 |
| Napier Rapier canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10683235 — 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.
Target entity: Napier Rapier Context triple: [Napier Lion, successor, Napier Rapier]
-
A.
The Cannon
The Cannon is the ring nickname of Shannon Briggs, an American heavyweight boxer and former world champion known for his punching power and outspoken personality.
-
B.
Martini–Henry rifle
The Martini–Henry rifle is a 19th-century British single-shot, breech-loading service rifle renowned for its use in the Anglo-Zulu War and other Victorian-era colonial conflicts.
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C.
Ferguson rifle
The Ferguson rifle was an innovative 18th-century British breech-loading flintlock firearm, notable for its rapid rate of fire and association with Major Patrick Ferguson during the American Revolutionary War.
-
D.
Snider–Enfield rifle
The Snider–Enfield rifle was a 19th-century British breech-loading conversion of the Enfield muzzle-loading rifle, widely used by the British Army during the mid to late 1800s.
-
E.
RSAF Enfield
RSAF Enfield was a major British government-owned arms factory best known for designing and producing iconic military firearms such as the Lee–Enfield rifle.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Napier Rapier Target entity description: The Napier Rapier was a British air-cooled, 16-cylinder H-type aircraft engine developed in the early 1930s for light aircraft and racing planes.
-
A.
The Cannon
The Cannon is the ring nickname of Shannon Briggs, an American heavyweight boxer and former world champion known for his punching power and outspoken personality.
-
B.
Martini–Henry rifle
The Martini–Henry rifle is a 19th-century British single-shot, breech-loading service rifle renowned for its use in the Anglo-Zulu War and other Victorian-era colonial conflicts.
-
C.
Ferguson rifle
The Ferguson rifle was an innovative 18th-century British breech-loading flintlock firearm, notable for its rapid rate of fire and association with Major Patrick Ferguson during the American Revolutionary War.
-
D.
Snider–Enfield rifle
The Snider–Enfield rifle was a 19th-century British breech-loading conversion of the Enfield muzzle-loading rifle, widely used by the British Army during the mid to late 1800s.
-
E.
RSAF Enfield
RSAF Enfield was a major British government-owned arms factory best known for designing and producing iconic military firearms such as the Lee–Enfield rifle.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
H‑type engine
ⓘ
aircraft engine ⓘ piston engine ⓘ |
| application |
air racing
ⓘ
civil aviation ⓘ |
| blockMaterial | aluminium alloy crankcase ⓘ |
| bore | 3.5 in ⓘ |
| category |
1930s aircraft piston engine
ⓘ
Napier aircraft engines NERFINISHED ⓘ |
| configuration | H‑configuration ⓘ |
| coolingSystem | air‑cooled ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| crankshaftConfiguration | two crankshafts geared together ⓘ |
| cylinderArrangement | four banks of four cylinders ⓘ |
| cylinderHeadType | aluminium alloy cylinder heads ⓘ |
| designedFor |
light aircraft
ⓘ
racing aircraft ⓘ |
| designGoal | compact high‑revving engine ⓘ |
| designPeriod | interwar period ⓘ |
| developer | Napier engineering team led by Arthur Rowledge ⓘ |
| displacement | approx. 1,960 cu in ⓘ |
| era | early 1930s ⓘ |
| fuelType | aviation gasoline ⓘ |
| ignitionSystem | dual ignition ⓘ |
| manufacturer | D. Napier & Son NERFINISHED ⓘ |
| marketRole | competition to contemporary inline and radial light‑aircraft engines ⓘ |
| notableFeature | unusual 16‑cylinder H‑layout for light aircraft ⓘ |
| numberOfCylinders | 16 ⓘ |
| powerOutputClass | low‑to‑medium power ⓘ |
| productionStart | early 1930s ⓘ |
| propulsionType | propeller‑driven aircraft engine ⓘ |
| status |
historic engine
ⓘ
out of production ⓘ |
| stroke | 3.5 in ⓘ |
| successor | Napier Dagger NERFINISHED ⓘ |
| supercharging | naturally aspirated ⓘ |
| typicalMounting | nose‑mounted tractor installation ⓘ |
| usedBy | British private owners and racing pilots ⓘ |
| usedIn |
experimental aircraft
ⓘ
record‑attempt aircraft ⓘ |
| usedInAircraft |
Blackburn B‑1 Segrave
NERFINISHED
ⓘ
de Havilland DH.71 Tiger Moth (modified examples / trials) ⓘ various British light aircraft prototypes ⓘ |
| valvetrain | single overhead camshaft per bank ⓘ |
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.
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.
Subject: Napier Rapier Description of subject: The Napier Rapier was a British air-cooled, 16-cylinder H-type aircraft engine developed in the early 1930s for light aircraft and racing planes.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.