Rolls-Royce Gem
E574781
The Rolls-Royce Gem is a turboshaft engine primarily used to power light helicopters, notably the Westland Lynx.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Rolls-Royce Gem canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T6214363 — 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 Gem Context triple: [Rolls-Royce aircraft engines, notableModel, Rolls-Royce Gem]
-
A.
Rolls-Royce Corniche
The Rolls-Royce Corniche is a luxury grand tourer, produced in coupe and convertible forms, renowned for its opulent craftsmanship and smooth, refined performance.
-
B.
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.
-
C.
Rolls-Royce (1971) Limited
Rolls-Royce (1971) Limited was the restructured company formed after the collapse of the original Rolls-Royce Limited, continuing its aero-engine and engineering businesses under government control.
-
D.
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.
-
E.
Rolls-Royce Silver Spirit
The Rolls-Royce Silver Spirit is a luxury full-size sedan produced from 1980 to the late 1990s, known for its opulent comfort, traditional craftsmanship, and smooth, refined V8 performance.
- 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 Gem Target entity description: The Rolls-Royce Gem is a turboshaft engine primarily used to power light helicopters, notably the Westland Lynx.
-
A.
Rolls-Royce Corniche
The Rolls-Royce Corniche is a luxury grand tourer, produced in coupe and convertible forms, renowned for its opulent craftsmanship and smooth, refined performance.
-
B.
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.
-
C.
Rolls-Royce (1971) Limited
Rolls-Royce (1971) Limited was the restructured company formed after the collapse of the original Rolls-Royce Limited, continuing its aero-engine and engineering businesses under government control.
-
D.
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.
-
E.
Rolls-Royce Silver Spirit
The Rolls-Royce Silver Spirit is a luxury full-size sedan produced from 1980 to the late 1990s, known for its opulent comfort, traditional craftsmanship, and smooth, refined V8 performance.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf | turboshaft engine ⓘ |
| applicationRole |
attack helicopter
ⓘ
light helicopter ⓘ naval helicopter ⓘ |
| category |
1960s turboprop and turboshaft engines
ⓘ
Rolls-Royce aircraft engines ⓘ helicopter turboshaft engines ⓘ |
| compressorStages |
single-stage centrifugal compressor
ⓘ
three-stage axial compressor ⓘ |
| compressorType | axial-centrifugal ⓘ |
| configuration | three-shaft ⓘ |
| controlSystem | hydro-mechanical fuel control ⓘ |
| cooling | air-cooled turbine blades ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| designGoal |
compact installation for naval helicopters
ⓘ
provide high performance for Westland Lynx ⓘ |
| developmentStart | 1960s ⓘ |
| enteredService | 1970s ⓘ |
| enteredServiceOn | Westland Lynx ⓘ |
| feature |
free power turbine
ⓘ
reverse-flow combustor ⓘ |
| firstRun | 1969 ⓘ |
| fuelType | aviation kerosene ⓘ |
| ignitionSystem | dual ignition ⓘ |
| manufacturer |
Rolls-Royce Turbomeca Limited
ⓘ
linked to:
Turbomeca
Rolls-Royce plc ⓘ Turbomeca ⓘ |
| market | military helicopter market ⓘ |
| notableFeature |
compact design for light helicopters
ⓘ
high power-to-weight ratio ⓘ |
| notableOperator |
British Army Air Corps
ⓘ
linked to:
United Kingdom Army Air Corps
Royal Navy ⓘ |
| powerOutput |
approximately 1000 shp
ⓘ
approximately 900 shp ⓘ |
| primaryUse | helicopter propulsion ⓘ |
| shaftArrangement | coaxial shafts ⓘ |
| status | in service ⓘ |
| turbineStages |
two-stage gas generator turbine
ⓘ
two-stage power turbine ⓘ |
| usedFor |
anti-submarine warfare helicopters
ⓘ
attack helicopter prototypes ⓘ battlefield utility helicopters ⓘ |
| usedOnAircraft |
Agusta A129 Mangusta
ⓘ
Westland Lynx ⓘ Westland WG.13 Lynx prototype ⓘ |
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 Gem Description of subject: The Rolls-Royce Gem is a turboshaft engine primarily used to power light helicopters, notably the Westland Lynx.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.