LNER Class P2

E211420

2-8-2 locomotive British steam locomotive express passenger locomotive steam locomotive class

The LNER Class P2 was a powerful class of 2-8-2 steam locomotives designed by Sir Nigel Gresley for hauling heavy express trains on the challenging Edinburgh–Aberdeen route in the 1930s.

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All labels observed (3)

Label	Occurrences
LNER Class A2/2	1
LNER Class P2 canonical	1
LNER Class P2 steam locomotive	1

How this entity was disambiguated

This entity first appeared as the object of triple T1746645 — 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: LNER Class P2
Context triple: [London and North Eastern Railway, notableLocomotiveClass, LNER Class P2]

A. LNER Class V2
The LNER Class V2 was a class of powerful 2-6-2 steam locomotives designed by Sir Nigel Gresley for mixed-traffic duties on the London and North Eastern Railway in the mid-20th century.
B. LMS Jubilee Class
The LMS Jubilee Class was a class of British steam locomotives built in the 1930s for express passenger services on the London, Midland and Scottish Railway.
C. LNER Class A1
The LNER Class A1 was a series of powerful British express passenger steam locomotives designed by Sir Nigel Gresley for high-speed mainline services in the early 20th century.
D. LNER Class A3
The LNER Class A3 was a famous class of British express steam locomotives, including the record-breaking Flying Scotsman, designed by Sir Nigel Gresley for high-speed mainline passenger service.
E. LNER Class A3 4472 Flying Scotsman
LNER Class A3 4472 Flying Scotsman is a famous British steam locomotive renowned for being one of the world’s most iconic express passenger engines and the first to officially reach 100 mph.
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: LNER Class P2
Target entity description: The LNER Class P2 was a powerful class of 2-8-2 steam locomotives designed by Sir Nigel Gresley for hauling heavy express trains on the challenging Edinburgh–Aberdeen route in the 1930s.

A. LNER Class V2
The LNER Class V2 was a class of powerful 2-6-2 steam locomotives designed by Sir Nigel Gresley for mixed-traffic duties on the London and North Eastern Railway in the mid-20th century.
B. LMS Jubilee Class
The LMS Jubilee Class was a class of British steam locomotives built in the 1930s for express passenger services on the London, Midland and Scottish Railway.
C. LNER Class A1
The LNER Class A1 was a series of powerful British express passenger steam locomotives designed by Sir Nigel Gresley for high-speed mainline services in the early 20th century.
D. LNER Class A3
The LNER Class A3 was a famous class of British express steam locomotives, including the record-breaking Flying Scotsman, designed by Sir Nigel Gresley for high-speed mainline passenger service.
E. LNER Class A3 4472 Flying Scotsman
LNER Class A3 4472 Flying Scotsman is a famous British steam locomotive renowned for being one of the world’s most iconic express passenger engines and the first to officially reach 100 mph.
F. None of above. chosen

Statements (50)

Predicate	Object
instanceOf	2-8-2 locomotive ⓘ British steam locomotive ⓘ express passenger locomotive ⓘ steam locomotive class ⓘ
boilerPressure	220 psi ⓘ
buildPeriod	1934–1936 ⓘ
configuration	Mikado ⓘ
countryOfOperation	United Kingdom ⓘ
cylinderArrangement	three-cylinder ⓘ
cylinderCount	3 ⓘ
designedByRole	LNER Chief Mechanical Engineer ⓘ linked to: Nigel Gresley
designedFor	Scottish main line gradients and curves ⓘ curving performance with pony truck and Cartazzi trailing axle ⓘ hauling heavy express trains ⓘ
designer	Sir Nigel Gresley ⓘ linked to: Nigel Gresley
era	1930s ⓘ
firstLocomotiveName	Cock o’ the North ⓘ
firstLocomotiveNumber	2001 ⓘ
fuelType	coal ⓘ
gauge	standard gauge ⓘ
heritageProject	new-build P2 No. 2007 Prince of Wales ⓘ
heritageProjectOperator	A1 Steam Locomotive Trust ⓘ
historicalStatus	all originals rebuilt and scrapped ⓘ
introduced	1934 ⓘ
notableFeature	large boiler for high power output ⓘ long rigid wheelbase ⓘ streamlined front end on later members ⓘ
notableFor	being among the most powerful express passenger steam locomotives in the UK ⓘ
numberBuilt	6 ⓘ
operatedBy	London and North Eastern Railway ⓘ
operator	LNER ⓘ linked to: London and North Eastern Railway
originalDesignVariant	P2/1 design ⓘ
powerType	steam ⓘ
primaryRoute	Aberdeen–Edinburgh line ⓘ linked to: Edinburgh to Aberdeen line Edinburgh–Aberdeen line ⓘ linked to: Edinburgh to Aberdeen line
railwayCompany	LNER ⓘ linked to: London and North Eastern Railway
railwayRegion	LNER Scottish Area ⓘ linked to: British Railways Scottish Region
reasonForRebuild	poor route availability and mechanical reliability issues ⓘ
rebuilder	Edward Thompson ⓘ
rebuilderRole	LNER Chief Mechanical Engineer ⓘ linked to: Nigel Gresley
rebuiltAs	LNER Class A2/2 ⓘ linked to: LNER Class P2
region	Scotland ⓘ
serviceType	express passenger ⓘ
subsequentDesignVariant	streamlined P2/2 design ⓘ
trackGauge	1435 mm ⓘ
UICClassification	1′D1′ h3 ⓘ
valveGear	Gresley conjugated ⓘ Walschaerts ⓘ
wheelArrangement	2-8-2 ⓘ
withdrawn	1944 ⓘ

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

London and North Eastern Railway → notableLocomotiveClass → LNER Class P2 ⓘ

LNER Class P2 → rebuiltAs → LNER Class A2/2 ⓘ

linked to: LNER Class P2

Nigel Gresley → notableWork → LNER Class P2 steam locomotive ⓘ