LNER Class K5

4 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 typecoalBoiler pressure225 psi (1.55 MPa)Cylinderstwo outsideCylinder size20 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 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. This locomotive was withdrawn in 1960, and later scrapped.

Sources

• Ian Allan ABC of British Railways Locomotives, part 4 (1948 ed.). p. 17.^{[full citation needed]}

External links

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