LNER Thompson Class B1 (6)1264

LNER 61264
61264 in British Railways livery at Scarborough in 2004 after working the "Scarborough Spa Express.
Type and origin
Power typeSteam
DesignerEdward Thompson
BuilderNorth British Locomotive Company, Glasgow
Order numberL963
Serial number26165
Build dateDecember 1947
Specifications
Configuration:
​
 • Whyte4-6-0
 • UIC2′C h2
Gauge4 ft 8+1⁄2 in (1,435 mm)
Leading dia.3 ft 2 in (0.965 m)
Driver dia.6 ft 2 in (1.880 m)
Loco weight71 long tons 3 cwt (159,400 lb or 72.3 t)
Fuel typeCoal
Water cap.4,000 imp gal (18,000 L; 4,800 US gal)
BoilerLNER diagram 100A
Boiler pressure225 psi (1.55 MPa)
CylindersTwo (outside)
Cylinder size20 in × 26 in (508 mm × 660 mm)
Valve gearWalschaerts
Valve type10-inch (254 mm) piston valves
Performance figures
Tractive effort26,878 lbf (119.56 kN)
Career
OperatorsBritish Railways
Power class5MT
Axle load classRoute Availability 5
WithdrawnNovember 1965
Current ownerThompson B1 Locomotive Trust
DispositionAwaiting Overhaul

London and North Eastern Railway (LNER) Thompson Class B1 No. 1264, (later British Railways No. 61264, and Departmental No. 29) is a preserved British steam locomotive.

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