British Rail Class 43
E775920
The British Rail Class 43 is a high-speed diesel-electric locomotive best known for powering the InterCity 125 trains that long held the world speed record for diesel traction in regular passenger service in the UK.
All labels observed (3)
| Label | Occurrences |
|---|---|
| British Rail Class 43 canonical | 1 |
| British Rail Class 43 HST | 1 |
| Class 43 HST (historically) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8942149 — 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: British Rail Class 43 Context triple: [InterCity East Coast, locomotiveClassUsed, British Rail Class 43]
-
A.
British Rail Class 373
The British Rail Class 373 is a high-speed electric multiple unit train designed for cross-Channel services through the Channel Tunnel, primarily operated by Eurostar between the UK and mainland Europe.
-
B.
British Rail Class 37
The British Rail Class 37 is a class of diesel-electric locomotives introduced in the early 1960s, renowned for their distinctive growling engine sound and long service life across the UK rail network.
-
C.
British Rail Class 466
The British Rail Class 466 is a type of electric multiple unit train used on suburban and commuter services in Southeast England as part of the Networker family.
-
D.
British Rail Class 143
The British Rail Class 143 is a type of diesel multiple unit "Pacer" train built in the 1980s for use on regional and commuter rail services in the UK.
-
E.
British Rail Class 47
The British Rail Class 47 is a widely used diesel-electric locomotive class introduced in the 1960s, notable for its extensive service across the UK rail network with both passenger and freight trains.
- 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: British Rail Class 43 Target entity description: The British Rail Class 43 is a high-speed diesel-electric locomotive best known for powering the InterCity 125 trains that long held the world speed record for diesel traction in regular passenger service in the UK.
-
A.
British Rail Class 373
The British Rail Class 373 is a high-speed electric multiple unit train designed for cross-Channel services through the Channel Tunnel, primarily operated by Eurostar between the UK and mainland Europe.
-
B.
British Rail Class 37
The British Rail Class 37 is a class of diesel-electric locomotives introduced in the early 1960s, renowned for their distinctive growling engine sound and long service life across the UK rail network.
-
C.
British Rail Class 466
The British Rail Class 466 is a type of electric multiple unit train used on suburban and commuter services in Southeast England as part of the Networker family.
-
D.
British Rail Class 143
The British Rail Class 143 is a type of diesel multiple unit "Pacer" train built in the 1980s for use on regional and commuter rail services in the UK.
-
E.
British Rail Class 47
The British Rail Class 47 is a widely used diesel-electric locomotive class introduced in the 1960s, notable for its extensive service across the UK rail network with both passenger and freight trains.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
British Rail locomotive class
ⓘ
diesel-electric locomotive ⓘ |
| brakeType | air ⓘ |
| builder |
BREL Crewe Works
NERFINISHED
ⓘ
British Rail Engineering Limited NERFINISHED ⓘ |
| category | High Speed Train power car NERFINISHED ⓘ |
| configuration | Bo-Bo ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| coupling | Drop-head buckeye ⓘ |
| designedBy | British Rail NERFINISHED ⓘ |
| engineType |
MTU 16V4000 R41R
NERFINISHED
ⓘ
Paxman VP185 NERFINISHED ⓘ Paxman Valenta NERFINISHED ⓘ |
| enteredService | 1976 ⓘ |
| gauge | standard gauge ⓘ |
| height | 3.91 m ⓘ |
| introduced | 1976 ⓘ |
| length | 17.79 m ⓘ |
| manufacturer | British Rail Engineering Limited NERFINISHED ⓘ |
| multipleWorking |
Time-division multiplex
ⓘ
within class only ⓘ |
| notableFor | world speed record for diesel traction in regular passenger service ⓘ |
| numberBuilt | 197 ⓘ |
| operator |
British Rail
NERFINISHED
ⓘ
CrossCountry NERFINISHED ⓘ Great Western Railway NERFINISHED ⓘ Network Rail NERFINISHED ⓘ ScotRail ⓘ |
| partOf | InterCity 125 NERFINISHED ⓘ |
| powerOutput |
1678 kW
ⓘ
2250 hp ⓘ |
| powerType | diesel-electric ⓘ |
| productionEnd | 1982 ⓘ |
| productionStart | 1975 ⓘ |
| recordSetIn | 1987 ⓘ |
| recordSpeed |
148 mph
ⓘ
238 km/h ⓘ |
| topSpeed |
125 mph
ⓘ
201 km/h ⓘ |
| trackGauge | 1435 mm ⓘ |
| trainHeating | Electric Train Heating ⓘ |
| UICClassification | Bo′Bo′ ⓘ |
| usedFor |
InterCity 125 services
NERFINISHED
ⓘ
high-speed passenger services ⓘ |
| usedOnRoute |
CrossCountry network
NERFINISHED
ⓘ
East Coast Main Line NERFINISHED ⓘ Great Western Main Line NERFINISHED ⓘ |
| weight | 70 t ⓘ |
| width | 2.74 m ⓘ |
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: British Rail Class 43 Description of subject: The British Rail Class 43 is a high-speed diesel-electric locomotive best known for powering the InterCity 125 trains that long held the world speed record for diesel traction in regular passenger service in the UK.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Class 43 HST (historically)
subject surface form:
British Rail Class 800
this entity surface form:
British Rail Class 43 HST