LNER Class K5

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 cylinders instead of three, following earlier rebuilds of other Gresley designs. The aim of rebuilding was to achieve high tractive effort by raising boiler pressures and using two large cylinders for ease of maintenance, as well as greater availability. The K5 was withdrawn and scrapped in 1960.

Sources

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


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