Rolls-Royce WR-21 gas turbine
E239660
The Rolls-Royce WR-21 is a marine gas turbine engine designed for advanced naval warships, featuring intercooler-recuperator technology to improve fuel efficiency and reduce emissions.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Rolls-Royce WR-21 gas turbines | 4 |
| Rolls-Royce WR-21 gas turbine canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2070930 — 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 WR-21 gas turbine Context triple: [Type 45 destroyer, hasPropulsionComponent, Rolls-Royce WR-21 gas turbine]
-
A.
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.
-
B.
Rolls-Royce Nene engine
The Rolls-Royce Nene engine is a pioneering late-1940s British centrifugal-flow turbojet whose powerful, compact design significantly advanced early jet aircraft performance and was widely exported and copied worldwide.
-
C.
Rolls-Royce Conway engine
The Rolls-Royce Conway engine was the world’s first production turbofan jet engine, pioneering a more efficient generation of jet propulsion for commercial and military aircraft in the mid-20th century.
-
D.
Rolls-Royce Adour turbofan
The Rolls-Royce Adour is a family of low-bypass turbofan engines developed for military trainer and light attack aircraft, noted for their reliability and widespread use in jets such as the SEPECAT Jaguar and BAE Systems Hawk.
-
E.
Rolls-Royce Avon engine
The Rolls-Royce Avon engine is a pioneering British axial-flow turbojet developed in the late 1940s that powered numerous military and civilian aircraft, including early jet airliners and fighters.
- 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 WR-21 gas turbine Target entity description: The Rolls-Royce WR-21 is a marine gas turbine engine designed for advanced naval warships, featuring intercooler-recuperator technology to improve fuel efficiency and reduce emissions.
-
A.
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.
-
B.
Rolls-Royce Nene engine
The Rolls-Royce Nene engine is a pioneering late-1940s British centrifugal-flow turbojet whose powerful, compact design significantly advanced early jet aircraft performance and was widely exported and copied worldwide.
-
C.
Rolls-Royce Conway engine
The Rolls-Royce Conway engine was the world’s first production turbofan jet engine, pioneering a more efficient generation of jet propulsion for commercial and military aircraft in the mid-20th century.
-
D.
Rolls-Royce Adour turbofan
The Rolls-Royce Adour is a family of low-bypass turbofan engines developed for military trainer and light attack aircraft, noted for their reliability and widespread use in jets such as the SEPECAT Jaguar and BAE Systems Hawk.
-
E.
Rolls-Royce Avon engine
The Rolls-Royce Avon engine is a pioneering British axial-flow turbojet developed in the late 1940s that powered numerous military and civilian aircraft, including early jet airliners and fighters.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf |
gas turbine
ⓘ
marine gas turbine engine ⓘ |
| application | integrated electric propulsion systems ⓘ |
| configuration | intercooled recuperated gas turbine ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| customer | Royal Navy ⓘ |
| designedFor |
advanced naval warships
ⓘ
surface combatants ⓘ |
| designedTo |
extend ship range
ⓘ
increase thermal efficiency ⓘ lower operating costs ⓘ |
| developer |
Northrop Grumman
ⓘ
Rolls-Royce Limited ⓘ
surface form:
Rolls-Royce
|
| emissionsCharacteristic |
reduced CO2 emissions compared to simple-cycle turbines
ⓘ
reduced NOx emissions compared to older naval turbines ⓘ |
| fuelType | marine distillate fuel ⓘ |
| hasComponent |
combustor
ⓘ
compressor ⓘ heat exchanger ⓘ power turbine ⓘ turbine ⓘ |
| hasFeature |
intercooler
ⓘ
intercooler-recuperator technology ⓘ recuperator ⓘ |
| industry | marine propulsion ⓘ |
| intendedPlatformType |
destroyers
ⓘ
frigates ⓘ |
| manufacturer |
Rolls-Royce Limited
ⓘ
surface form:
Rolls-Royce
|
| marketedAs | fuel-efficient naval gas turbine ⓘ |
| operatingEnvironment | marine ⓘ |
| powerTransmission | electric drive (via generators) ⓘ |
| primaryUse | naval propulsion ⓘ |
| purposeOfFeature |
improve fuel efficiency
ⓘ
reduce emissions ⓘ reduce fuel consumption ⓘ |
| role | main propulsion gas turbine ⓘ |
| sector | defence ⓘ |
| technologyType | aero-derivative gas turbine ⓘ |
| usedBy | Royal Navy ⓘ |
| usedOn |
Type 45 destroyers
ⓘ
surface form:
Type 45 destroyer
|
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 WR-21 gas turbine Description of subject: The Rolls-Royce WR-21 is a marine gas turbine engine designed for advanced naval warships, featuring intercooler-recuperator technology to improve fuel efficiency and reduce emissions.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Type 45 destroyer
this entity surface form:
Rolls-Royce WR-21 gas turbines
this entity surface form:
Rolls-Royce WR-21 gas turbines
this entity surface form:
Rolls-Royce WR-21 gas turbines
this entity surface form:
Rolls-Royce WR-21 gas turbines