Rolls-Royce Dart
E578251
The Rolls-Royce Dart is a pioneering British turboprop aircraft engine introduced in the late 1940s, widely used in regional airliners such as the Vickers Viscount and renowned for its reliability and long service life.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Rolls-Royce Dart canonical | 1 |
| Rolls‑Royce Dart | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6214361 — 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 Dart Context triple: [Rolls-Royce aircraft engines, notableModel, Rolls-Royce Dart]
-
A.
Rolls-Royce Derwent
The Rolls-Royce Derwent is a pioneering British centrifugal-flow turbojet engine developed during World War II that powered early jet fighters such as the Gloster Meteor.
-
B.
Rolls-Royce Kestrel
The Rolls-Royce Kestrel is a British liquid-cooled V-12 aircraft engine widely used in the interwar period and known for powering many early Hawker biplanes and other RAF aircraft.
-
C.
Rolls-Royce Eagle
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.
-
D.
Rolls-Royce Pearl 15
The Rolls-Royce Pearl 15 is a modern, high-bypass turbofan engine designed for business jets, known for combining improved fuel efficiency, low emissions, and reduced noise with high thrust output.
-
E.
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.
- 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 Dart Target entity description: The Rolls-Royce Dart is a pioneering British turboprop aircraft engine introduced in the late 1940s, widely used in regional airliners such as the Vickers Viscount and renowned for its reliability and long service life.
-
A.
Rolls-Royce Derwent
The Rolls-Royce Derwent is a pioneering British centrifugal-flow turbojet engine developed during World War II that powered early jet fighters such as the Gloster Meteor.
-
B.
Rolls-Royce Kestrel
The Rolls-Royce Kestrel is a British liquid-cooled V-12 aircraft engine widely used in the interwar period and known for powering many early Hawker biplanes and other RAF aircraft.
-
C.
Rolls-Royce Eagle
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.
-
D.
Rolls-Royce Pearl 15
The Rolls-Royce Pearl 15 is a modern, high-bypass turbofan engine designed for business jets, known for combining improved fuel efficiency, low emissions, and reduced noise with high thrust output.
-
E.
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.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
gas turbine engine
ⓘ
turboprop aircraft engine ⓘ |
| application |
military transport aircraft
ⓘ
regional airliners ⓘ short-haul passenger aircraft ⓘ |
| bladeMaterial | metal alloy ⓘ |
| combustionChambers | annular ⓘ |
| compressorType | centrifugal-flow ⓘ |
| configuration | two-shaft ⓘ |
| cooling | air-cooled turbine ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| designer | Rolls-Royce Limited NERFINISHED ⓘ |
| enteredService | 1950 ⓘ |
| family | Rolls-Royce RB.50 series NERFINISHED ⓘ |
| firstRun | 1946 ⓘ |
| fuelType | kerosene jet fuel ⓘ |
| introduced | late 1940s ⓘ |
| legacy |
demonstrated viability of turboprops for commercial service
ⓘ
influenced later Rolls-Royce turboprop designs ⓘ |
| manufacturer | Rolls-Royce Limited NERFINISHED ⓘ |
| market |
civil aviation
ⓘ
military aviation ⓘ |
| natoDesignation | RB.53 NERFINISHED ⓘ |
| notableAchievement | powered the first successful turboprop airliner in regular service ⓘ |
| notableFor |
long service life
ⓘ
reliability ⓘ |
| pioneering | early successful turboprop for civil transport ⓘ |
| poweredFirst | Vickers Viscount in airline service ⓘ |
| powerOutputRange | around 1,000 to 2,100 shp ⓘ |
| productionPeriod | late 1940s to 1960s ⓘ |
| propellerDrive | reduction gearbox ⓘ |
| reliabilityRecord | high time between overhauls compared to contemporaries ⓘ |
| serviceLife | remained in airline service for several decades ⓘ |
| status | out of production ⓘ |
| successor | Rolls-Royce Tyne NERFINISHED ⓘ |
| turbineStages |
single-stage gas generator turbine
ⓘ
two-stage power turbine ⓘ |
| usedBy |
Air France
NERFINISHED
ⓘ
British European Airways NERFINISHED ⓘ KLM NERFINISHED ⓘ Trans-Australia Airlines NERFINISHED ⓘ various regional airlines worldwide ⓘ |
| usedIn |
Avro 748
NERFINISHED
ⓘ
Convair 600 NERFINISHED ⓘ Convair 640 NERFINISHED ⓘ Fokker F27 Friendship NERFINISHED ⓘ Handley Page Herald NERFINISHED ⓘ NAMC YS-11 NERFINISHED ⓘ Vickers Vanguard (test and development) NERFINISHED ⓘ Vickers Viscount NERFINISHED ⓘ |
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 Dart Description of subject: The Rolls-Royce Dart is a pioneering British turboprop aircraft engine introduced in the late 1940s, widely used in regional airliners such as the Vickers Viscount and renowned for its reliability and long service life.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Rolls‑Royce Dart