LNER Class K5

Specifications
Configuration:;
• Whyte	2-6-0
Gauge	4 ft 8 1⁄2 in (1,435 mm)
Driver dia.	5 ft 8 in (1.73 m)
Loco weight	71.25 long tons (72.39 t)
Fuel type	coal
Boiler pressure	225 psi (1.55 MPa)
Cylinders	two outside
Cylinder size	20 in × 26 in (510 mm × 660 mm)

Type and origin
Power type	Steam
Designer	Edward Thompson
Build date	(rebuilt) 1945

LNER Class K5
Type and origin
Power type	Steam
Designer	Edward Thompson
Build date	(rebuilt) 1945
Specifications
Configuration:;
• Whyte	2-6-0
Gauge	4 ft 8 1⁄2 in (1,435 mm)
Driver dia.	5 ft 8 in (1.73 m)
Loco weight	71.25 long tons (72.39 t)
Fuel type	coal
Boiler pressure	225 psi (1.55 MPa)
Cylinders	two outside
Cylinder size	20 in × 26 in (510 mm × 660 mm)
Performance figures
Tractive effort	29,250 lbf (130.1 kN)
Career
Power class	BR: 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.

Sources

Ian Allan ABC of British Railways Locomotives, part 4 (1948 ed.). p. 17.

External links

The Gresley K3 and Thompson K5 2-6-0 Moguls LNER Encyclopedia

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