Rolls-Royce Spey turbofan
E371055
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.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Rolls-Royce Spey turbofan canonical | 7 |
| Rolls-Royce Spey | 4 |
| Rolls-Royce RB.163 Spey (civil series) | 1 |
| Rolls-Royce Spey 202 | 1 |
| Rolls-Royce Spey turbofan engines | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3581487 — 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 Spey turbofan Context triple: [Nimrod MR2, engineType, Rolls-Royce Spey turbofan]
-
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 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 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.
-
D.
Rolls-Royce AE 3007A1/3
The Rolls-Royce AE 3007A1/3 is a high-bypass turbofan engine variant in the AE 3007 family, designed primarily to power regional jets such as the Embraer ERJ 135.
-
E.
Rolls-Royce/Snecma Olympus 593
The Rolls-Royce/Snecma Olympus 593 is a turbojet engine jointly developed by British and French manufacturers to power the supersonic Concorde airliner at sustained Mach 2 cruise speeds.
- 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 Spey turbofan Target entity description: 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.
-
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 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 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.
-
D.
Rolls-Royce AE 3007A1/3
The Rolls-Royce AE 3007A1/3 is a high-bypass turbofan engine variant in the AE 3007 family, designed primarily to power regional jets such as the Embraer ERJ 135.
-
E.
Rolls-Royce/Snecma Olympus 593
The Rolls-Royce/Snecma Olympus 593 is a turbojet engine jointly developed by British and French manufacturers to power the supersonic Concorde airliner at sustained Mach 2 cruise speeds.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
low-bypass turbofan
ⓘ
turbofan engine ⓘ |
| alsoKnownAs | RB.168 ⓘ |
| application |
business jets
ⓘ
short-haul airliners ⓘ strike aircraft ⓘ |
| bypassRatio | low bypass ratio ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| designFeature |
annular combustor
ⓘ
axial-flow compressor ⓘ three-stage low-pressure turbine ⓘ two-spool design ⓘ two-stage high-pressure turbine ⓘ |
| enteredService | 1964 ⓘ |
| era | Cold War ⓘ |
| firstRun | 1960 ⓘ |
| licenseBuiltAs | Xian WS-9 ⓘ |
| manufacturer | Rolls-Royce Limited ⓘ |
| notableCharacteristic |
compact design
ⓘ
fuel efficiency for its time ⓘ high reliability ⓘ |
| notableVariant |
Spey Mk.101
ⓘ
Spey Mk.202 ⓘ Spey Mk.202 ⓘ
surface form:
Spey Mk.203
Spey Mk.511 ⓘ Spey Mk.512 ⓘ Spey Mk.555-15H ⓘ |
| relatedEngineFamily |
Rolls-Royce Spey turbofan
self-linksurface differs
ⓘ
surface form:
Rolls-Royce RB.163 Spey (civil series)
|
| role |
civil aircraft engine
ⓘ
military aircraft engine ⓘ |
| status | largely out of production ⓘ |
| successor |
Rolls‑Royce Tay 620
ⓘ
surface form:
Rolls-Royce Tay
|
| support | still supported in service by maintenance organizations ⓘ |
| thrustClass |
9000 to 12000 lbf (civil versions)
ⓘ
up to about 20000 lbf (military afterburning versions) ⓘ |
| usedBy |
Aeronautica Militare
ⓘ
surface form:
Italian Air Force
People's Liberation Army Naval Air Force ⓘ Royal Air Force ⓘ Royal Navy ⓘ |
| usedIn |
AMX International
ⓘ
surface form:
AMX International AMX
One-Eleven short-haul jet ⓘ
surface form:
BAC One-Eleven
Hawker Siddeley Buccaneer ⓘ
surface form:
Blackburn Buccaneer
Dassault Mercure ⓘ Fokker F28 ⓘ
surface form:
Fokker F28 Fellowship
Grumman Gulfstream II ⓘ Hawker Siddeley Trident ⓘ McDonnell F-4 Phantom II ⓘ
surface form:
McDonnell Douglas F-4 Phantom II
Saab 37 Viggen ⓘ
surface form:
Saab 37 Viggen (test and development)
RAF VC10 ⓘ
surface form:
Vickers VC10 (testbed)
Xian JH-7 ⓘ |
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 Spey turbofan Description of subject: 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.
Referenced by (14)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Rolls-Royce Conway
this entity surface form:
Rolls-Royce Spey
this entity surface form:
Rolls-Royce Spey
this entity surface form:
Rolls-Royce Spey
this entity surface form:
Rolls-Royce Spey
subject surface form:
Nimrod MR2
this entity surface form:
Rolls-Royce Spey turbofan engines
Rolls-Royce Spey turbofan
→
relatedEngineFamily
→
Rolls-Royce Spey turbofan
self-linksurface differs
ⓘ
subject surface form:
Rolls-Royce Spey
this entity surface form:
Rolls-Royce RB.163 Spey (civil series)
this entity surface form:
Rolls-Royce Spey 202