British Rail Class 10

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British Rail Class 10
D3452 at Bodmin.JPG
D3452, at Bodmin on 28 August 2003. This locomotive is preserved on the Bodmin & Wenford Railway
Type and origin
Power type Diesel-electric
Builder British Railways Darlington Works and Doncaster Works
Build date 1953–1962
Total produced 161
Configuration 0-6-0
UIC classification C
Gauge 4 ft 8 12 in (1,435 mm) standard gauge
Wheel diameter 4 ft 6 in (1.372 m)
Wheelbase 11 ft 6 in (3.51 m)
Length 29 ft 3 in (8.92 m)
Width 8 ft 6 in (2.59 m)
Height 12 ft 8 12 in (3.87 m)
Locomotive weight 48.6 long tons (49.4 t; 54.4 short tons)
Fuel capacity 668 imp gal (3,040 l; 802 US gal)
Prime mover Blackstone ER6T
Traction motors D3152–D3166: BTH, 2 off
Remainder: GEC nose suspended, 2 off
Transmission Diesel-electric, double reduction gearing
Multiple working Not fitted
Performance figures
Maximum speed 27.5 mph (44 km/h)
Power output Engine: 350 hp (261 kW)
Tractive effort Maximum: 35,000 lbf (155.7 kN)
Continuous: 11,100 lbf (49.4 kN)
Train heating None
Train brakes Vacuum
Operator(s) British Railways
Number(s) 13137–13166; later D3137–D3166, D3439–D3453, D3473–D3502, D3612–D3651, D4049–D4094
Axle load class RA 5

The British Rail Class 10 diesel locomotive was a variation on the Class 08 diesel-electric shunter in which 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 1953–1962. Early batches were classified D3/4 (those with GEC motors) and D3/5 (those with BTH motors).

Technical details[edit]

  • Engine: Blackstone 6-cylinder, 4-stroke, ER6T
  • Traction motors:
    • 2 x BTH motors (D3152–D3166)
    • 2 x GEC nose suspended motors (remainder)


Four Class 10 diesel shunters are currently preserved:


  • Strickland, David C. (September 1983). Locomotive Directory. Camberley, Surrey: Diesel and Electric Group. pp. 53–61. ISBN 0-906375-10-X.