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LNER Class K5
Type and origin
Power typeSteam
DesignerEdward Thompson
Build date(rebuilt) 1945
Specifications
Configuration:
​
 • Whyte2-6-0
Gauge4 ft 8+1⁄2 in (1,435 mm)
Driver dia.5 ft 8 in (1.73 m)
Loco weight71.25 long tons (72.39 t)
Fuel typecoal
Boiler pressure225 psi (1.55 MPa)
Cylinderstwo outside
Cylinder size20 in × 26 in (510 mm × 660 mm)
Performance figures
Tractive effort29,250 lbf (130.1 kN)
Career
Power classBR: 6MT

The London and North Eastern Railway Class K5 consisted of a single rebuild of LNER Class K3 2-6-0 No. 206 (later No. 61863), rebuilt in 1945 by Edward Thompson. The rebuilt locomotive had a new boiler and two, instead of three, cylinders following earlier rebuilds of other Gresley designs. The clear aim of the rebuilds was to move away from the well established three cylinder policy achieving similar results through higher boiler pressure and two larger cylinders. Easier maintenance and greater availability was the objective.

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London and North Eastern Railway locomotives
Categories