Rolls-Royce Derwent turbojet
E1023569
The Rolls-Royce Derwent turbojet is a British centrifugal-flow jet engine developed during World War II that powered early jet aircraft such as the Gloster Meteor.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Rolls-Royce Derwent turbojet canonical | 2 |
| Rolls-Royce Derwent 8 turbojet | 1 |
| Rolls-Royce Derwent centrifugal‑flow turbojet | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13136220 — 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 Derwent turbojet Context triple: [Meteor NF.11, powerplant, Rolls-Royce Derwent turbojet]
-
A.
Rolls-Royce Welland turbojet
The Rolls-Royce Welland turbojet was Britain’s first production jet engine, powering early operational jet fighters during World War II.
-
B.
Rolls-Royce Olympus turbojet
The Rolls-Royce Olympus turbojet is a British axial-flow jet engine best known for powering aircraft such as the Avro Vulcan bomber and later versions of the supersonic airliner Concorde.
-
C.
Rolls-Royce Spey turbofan
The Rolls-Royce Spey turbofan is a British low-bypass jet engine widely used from the 1960s in both military and civilian aircraft for its reliability and compact, efficient design.
-
D.
Rolls-Royce Viper turbojet
The Rolls-Royce Viper turbojet is a compact British jet engine widely used in military trainers and light attack aircraft from the mid-20th century onward.
-
E.
Rolls-Royce Pegasus turbofan
The Rolls-Royce Pegasus turbofan is a unique vectored-thrust jet engine that enables vertical and short takeoff and landing (V/STOL) capability in aircraft such as the Harrier family.
- 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 Derwent turbojet Target entity description: The Rolls-Royce Derwent turbojet is a British centrifugal-flow jet engine developed during World War II that powered early jet aircraft such as the Gloster Meteor.
-
A.
Rolls-Royce Welland turbojet
The Rolls-Royce Welland turbojet was Britain’s first production jet engine, powering early operational jet fighters during World War II.
-
B.
Rolls-Royce Olympus turbojet
The Rolls-Royce Olympus turbojet is a British axial-flow jet engine best known for powering aircraft such as the Avro Vulcan bomber and later versions of the supersonic airliner Concorde.
-
C.
Rolls-Royce Spey turbofan
The Rolls-Royce Spey turbofan is a British low-bypass jet engine widely used from the 1960s in both military and civilian aircraft for its reliability and compact, efficient design.
-
D.
Rolls-Royce Viper turbojet
The Rolls-Royce Viper turbojet is a compact British jet engine widely used in military trainers and light attack aircraft from the mid-20th century onward.
-
E.
Rolls-Royce Pegasus turbofan
The Rolls-Royce Pegasus turbofan is a unique vectored-thrust jet engine that enables vertical and short takeoff and landing (V/STOL) capability in aircraft such as the Harrier family.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
aircraft engine
ⓘ
turbojet engine ⓘ |
| application | early British jet aircraft ⓘ |
| category | World War II jet engine ⓘ |
| compressorType | single-stage centrifugal compressor ⓘ |
| configuration | single-spool ⓘ |
| coolingMethod | air-cooled turbine ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| derivedFrom | Rolls-Royce Welland NERFINISHED ⓘ |
| designGoal | higher thrust than Rolls-Royce Welland ⓘ |
| developmentPeriod | World War II NERFINISHED ⓘ |
| engineCycle | turbojet ⓘ |
| enteredService | 1944 ⓘ |
| era | early jet age ⓘ |
| exportedTo |
Argentina
NERFINISHED
ⓘ
Australia NERFINISHED ⓘ several European countries ⓘ |
| firstRunDate | 1943 ⓘ |
| flowType | centrifugal-flow ⓘ |
| fuelType | aviation kerosene ⓘ |
| historicalSignificance | one of the first successful British production jet engines ⓘ |
| manufacturer | Rolls-Royce Limited NERFINISHED ⓘ |
| museumDisplay |
Royal Air Force Museum (examples on display)
NERFINISHED
ⓘ
Science Museum, London (examples on display) NERFINISHED ⓘ |
| notableFeature | compact centrifugal compressor design ⓘ |
| notableVariant |
Derwent 8
NERFINISHED
ⓘ
Derwent V NERFINISHED ⓘ |
| poweredFirstFlightOf | production Gloster Meteor variants ⓘ |
| poweredVariantOf |
Gloster Meteor F.3
NERFINISHED
ⓘ
Gloster Meteor F.4 NERFINISHED ⓘ Gloster Meteor T.7 NERFINISHED ⓘ |
| primaryUse | fighter aircraft propulsion ⓘ |
| successor | Rolls-Royce Nene NERFINISHED ⓘ |
| technologyLineage | led to development of Rolls-Royce Nene ⓘ |
| thrustClass | around 2,000 lbf to 3,600 lbf depending on variant ⓘ |
| turbineType | single-stage axial turbine ⓘ |
| usedBy |
Argentine Air Force
NERFINISHED
ⓘ
Royal Air Force ⓘ Royal Australian Air Force NERFINISHED ⓘ Soviet Air Forces (via license-built versions) NERFINISHED ⓘ |
| usedFor | research and testbed aircraft ⓘ |
| usedIn | postwar experimental aircraft ⓘ |
| usedInAircraft |
Avro Tudor 8
NERFINISHED
ⓘ
FMA IAe 27 Pulqui I NERFINISHED ⓘ Gloster Meteor NERFINISHED ⓘ Yakovlev Yak-23 (license-built version) NERFINISHED ⓘ |
| usedInRole |
fighter
ⓘ
trainer aircraft ⓘ |
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 Derwent turbojet Description of subject: The Rolls-Royce Derwent turbojet is a British centrifugal-flow jet engine developed during World War II that powered early jet aircraft such as the Gloster Meteor.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Rolls-Royce Derwent centrifugal‑flow turbojet
this entity surface form:
Rolls-Royce Derwent 8 turbojet