LNER Class K5

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 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 The K5 was withdrawn and scrapped in 1960.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.

External links

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