Rolls-Royce Eagle
E111133
The Rolls-Royce Eagle was a pioneering British liquid-cooled V12 aircraft engine of World War I, widely used to power frontline bombers and reconnaissance aircraft.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Rolls-Royce Eagle canonical | 1 |
| Rolls-Royce Eagle VII | 1 |
| Rolls‑Royce Eagle VIII | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T945664 — 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: Rolls-Royce Eagle Context triple: [Airco DH.4, typicalEngine, Rolls-Royce Eagle]
-
A.
Rolls-Royce XG-40
The Rolls-Royce XG-40 was an experimental British low-bypass turbofan engine program that served as the technological basis for the later Eurojet EJ200 fighter aircraft engine.
-
B.
Bristol Blenheim
The Bristol Blenheim was a British twin‑engine light bomber and reconnaissance aircraft widely used by Allied air forces in the early years of World War II.
-
C.
Bentley BR1
The Bentley BR1 was a British World War I rotary aircraft engine renowned for its power and reliability in frontline fighters.
-
D.
Alvis Vehicles
Alvis Vehicles was a British manufacturer known for producing military armored vehicles and reconnaissance platforms for the British Army and international customers.
-
E.
MGB
MGB was the Soviet Union’s Ministry of State Security, a key secret police and intelligence agency that operated before being reorganized into the KGB.
- 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: Rolls-Royce Eagle Target entity description: The Rolls-Royce Eagle was a pioneering British liquid-cooled V12 aircraft engine of World War I, widely used to power frontline bombers and reconnaissance aircraft.
-
A.
Rolls-Royce XG-40
The Rolls-Royce XG-40 was an experimental British low-bypass turbofan engine program that served as the technological basis for the later Eurojet EJ200 fighter aircraft engine.
-
B.
Bristol Blenheim
The Bristol Blenheim was a British twin‑engine light bomber and reconnaissance aircraft widely used by Allied air forces in the early years of World War II.
-
C.
Bentley BR1
The Bentley BR1 was a British World War I rotary aircraft engine renowned for its power and reliability in frontline fighters.
-
D.
Alvis Vehicles
Alvis Vehicles was a British manufacturer known for producing military armored vehicles and reconnaissance platforms for the British Army and international customers.
-
E.
MGB
MGB was the Soviet Union’s Ministry of State Security, a key secret police and intelligence agency that operated before being reorganized into the KGB.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
V12 engine
ⓘ
aircraft engine ⓘ liquid-cooled piston engine ⓘ |
| applicationRole |
frontline bomber powerplant
ⓘ
frontline reconnaissance powerplant ⓘ |
| bore | 114 mm ⓘ |
| category |
Rolls-Royce aircraft engines
ⓘ
World War I aircraft piston engines ⓘ |
| configuration | 60-degree V12 ⓘ |
| coolingSystem | liquid-cooled ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| designer | Henry Royce ⓘ |
| displacement | 20.3 L ⓘ |
| era | World War I aviation ⓘ |
| family | Rolls-Royce Eagle engine family ⓘ |
| firstRunDate | 1915 ⓘ |
| fuelType | aviation gasoline ⓘ |
| ignitionSystem | dual magnetos ⓘ |
| lubricationSystem | pressure-fed oil system ⓘ |
| manufacturer | Rolls-Royce Limited ⓘ |
| material | cast aluminum crankcase ⓘ |
| notableAchievement | powered several long‑distance and record flights after World War I ⓘ |
| notableAircraft |
Airco DH.4
ⓘ
Airco DH.9 ⓘ
surface form:
Airco DH.9A (early examples)
Felixstowe F.2A ⓘ Felixstowe F.2A ⓘ
surface form:
Felixstowe F.3
Handley Page O/100 ⓘ Handley Page O/400 ⓘ Vickers Vimy ⓘ
surface form:
Vickers Vimy (early versions)
|
| notableFeature |
high reliability for its time
ⓘ
pioneering British V12 aero engine design ⓘ |
| notableUse |
bombers
ⓘ
flying boats ⓘ reconnaissance aircraft ⓘ |
| powerOutput |
225 hp (early versions)
ⓘ
up to about 360 hp (later versions) ⓘ |
| productionPeriod | 1915–1928 ⓘ |
| propellerDrive | direct drive ⓘ |
| status | out of production ⓘ |
| stroke | 165 mm ⓘ |
| successor |
Rolls-Royce Condor
ⓘ
Rolls-Royce Kestrel ⓘ |
| usedBy |
Royal Air Force
ⓘ
Royal Flying Corps ⓘ Royal Naval Air Service ⓘ |
| usedInConflict | World War I ⓘ |
| valvesPerCylinder | 4 ⓘ |
| valvetrain | overhead camshaft ⓘ |
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: Rolls-Royce Eagle Description of subject: The Rolls-Royce Eagle was a pioneering British liquid-cooled V12 aircraft engine of World War I, widely used to power frontline bombers and reconnaissance aircraft.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Rolls-Royce Eagle VIII
this entity surface form:
Rolls-Royce Eagle VII
this entity surface form:
Rolls‑Royce Eagle VIII