British Rail Class D2/1

British Rail Class D2/1
Type and origin Power type Diesel-hydraulic Builder North British Locomotive Company Serial number 27100–27102, 27431–27435 Build date 1953–1956 Total produced 8
Specifications Configuration: ​  • Whyte 0-4-0 DH  • UIC B Gauge 4 ft 8 1⁄2 in (1,435 mm) standard gauge Wheel diameter 3 ft 6 in (1.067 m) Loco weight 32.00 long tons (32.51 t) Prime mover Paxman 6RPH Transmission Hydraulic, Voith MU working Not fitted Train heating None Train brakes None
Performance figures Top speed 14.5 mph (23.3 km/h) Power output 200 bhp (149 kW) Tractive effort 21,500 lbf (95.6 kN)
Career Railroad(s) British Railways Class DY11; later D2/1; later 2/4A Number 11700-11707; D2700–D2707 from 1958 to 1960 Axle load class Route availability 3 Retired 1963–1968

British Rail Class D2/1 was a locomotive commissioned by British Rail in England. It was a diesel powered locomotive in the pre-TOPS period built by the North British Locomotive Company with a Paxman engine.