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British Rail Class 10

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British Rail Class 10
D3452, at Bodmin on 28 August 2003. This locomotive is preserved on the Bodmin & Wenford Railway
Type and origin
Power typeDiesel-electric
BuilderBritish Railways Darlington Works and Doncaster Works
Build date1953–1962
Total produced161
 • Whyte0-6-0
Gauge4 ft 8 12 in (1,435 mm) standard gauge
Wheel diameter4 ft 6 in (1.372 m)
Wheelbase11 ft 6 in (3.51 m)
Length29 ft 3 in (8.92 m)
Width8 ft 6 in (2.59 m)
Height12 ft 8+12 in (3.87 m)
Loco weight48.6 long tons (49.4 t)
Fuel capacity668 imp gal (3,040 L; 802 US gal)
Prime moverBlackstone ER6T
Traction motorsD3152–D3166: BTH, 2 off
Remainder: GEC nose suspended, 2 off
TransmissionDC generator, DC traction motors, double reduction gearing
MU workingNot fitted
Train heatingNone
Train brakesVacuum
Performance figures
Top speed27.5 mph (44 km/h)
Power outputEngine: 350 hp (261 kW)
Tractive effortMaximum: 35,000 lbf (155.7 kN)
Continuous: 11,100 lbf (49.4 kN)
Railroad(s)British Railways
Number13137–13166; later D3137–D3166, D3439–D3453, D3473–D3502, D3612–D3651, D4049–D4094
Axle load classRA 5

The British Rail Class 10 diesel locomotive was a version on the Class 08 diesel-electric shunter. A Blackstone diesel engine was fitted instead of one made by the English Electric company. Traction motors were by either the General Electric Company plc (GEC) or British Thomson-Houston (BTH).

The locomotives were built at the BR Works in Darlington and Doncaster over the period 1953-62. Early batches were classified D3/4 (those with GEC motors) and D3/5 (those with BTH motors).