Rolls-Royce RB.168
E443083
The Rolls-Royce RB.168, better known as the Pegasus, is a British turbofan jet engine renowned for providing vectored thrust to power V/STOL aircraft such as the Harrier jump jet.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Rolls-Royce Pegasus | 1 |
| Rolls-Royce RB.168 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4459976 — 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 RB.168 Context triple: [Rolls-Royce Pegasus, alsoKnownAs, Rolls-Royce RB.168]
-
A.
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.
-
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 Griffon
The Rolls-Royce Griffon is a powerful British liquid-cooled V12 aero engine developed during World War II, best known for powering later, high-performance variants of the Supermarine Spitfire and other Royal Air Force aircraft.
-
D.
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.
-
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 RB.168 Target entity description: The Rolls-Royce RB.168, better known as the Pegasus, is a British turbofan jet engine renowned for providing vectored thrust to power V/STOL aircraft such as the Harrier jump jet.
-
A.
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.
-
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 Griffon
The Rolls-Royce Griffon is a powerful British liquid-cooled V12 aero engine developed during World War II, best known for powering later, high-performance variants of the Supermarine Spitfire and other Royal Air Force aircraft.
-
D.
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.
-
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 (46)
| Predicate | Object |
|---|---|
| instanceOf |
aircraft engine
ⓘ
military aircraft engine ⓘ turbofan jet engine ⓘ |
| alsoKnownAs | Rolls-Royce Pegasus NERFINISHED ⓘ |
| application |
attack aircraft
ⓘ
fighter aircraft ⓘ |
| configuration |
twin front nozzles for cold flow
ⓘ
twin rear nozzles for hot exhaust ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| designedFor |
Hawker P.1127 prototype
NERFINISHED
ⓘ
Kestrel evaluation aircraft NERFINISHED ⓘ |
| developedFrom | Bristol BE.53 NERFINISHED ⓘ |
| fuelType | aviation kerosene ⓘ |
| hasComponent |
annular combustor
ⓘ
axial compressor ⓘ low-bypass fan ⓘ turbine ⓘ vectoring nozzle system ⓘ |
| hasFeature |
four swivelling exhaust nozzles
ⓘ
short take-off and vertical landing support ⓘ single-spool turbofan layout ⓘ vectored thrust capability ⓘ |
| introducedAs | Pegasus engine family NERFINISHED ⓘ |
| manufacturer |
Bristol Siddeley
NERFINISHED
ⓘ
Rolls-Royce NERFINISHED ⓘ |
| notableFor |
enabling operational V/STOL combat aircraft
ⓘ
integration with Harrier flight control system ⓘ pioneering practical vectored-thrust turbofan design ⓘ |
| operator |
Royal Air Force
ⓘ
Royal Navy ⓘ United States Marine Corps ⓘ various NATO air forces ⓘ |
| role |
providing hover capability
ⓘ
providing vertical and short take-off thrust ⓘ |
| thrustClass | approximately 20,000 lbf ⓘ |
| usedFor |
close air support missions
ⓘ
naval air operations from small carriers ⓘ |
| usedIn |
British Aerospace Harrier II
NERFINISHED
ⓘ
Harrier jump jet family NERFINISHED ⓘ Hawker Siddeley Harrier NERFINISHED ⓘ McDonnell Douglas AV-8B Harrier II NERFINISHED ⓘ Sea Harrier NERFINISHED ⓘ V/STOL aircraft ⓘ |
| usedInConflict |
Falklands War
NERFINISHED
ⓘ
Gulf War ⓘ various post–Cold War conflicts ⓘ |
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 RB.168 Description of subject: The Rolls-Royce RB.168, better known as the Pegasus, is a British turbofan jet engine renowned for providing vectored thrust to power V/STOL aircraft such as the Harrier jump jet.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Rolls-Royce Pegasus
this entity surface form:
Rolls-Royce Pegasus