British Rail Class D2/1

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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
 • Whyte 0-4-0 DH
 • UIC B
Gauge 4 ft 8 12 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)
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.