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British Rail Class 59

British Rail Class 59
A Class 59 at Doncaster Works in 2003
Type and origin
Power typeDiesel-electric
BuilderGM Electro-Motive Division,
at La Grange, Illinois, USA and London, Ontario, Canada
ModelJT26CW-SS
Build date1985–1995
Total produced15
Specifications
Configuration:
 • UICCo′Co′
 • CommonwealthCo-Co
Gauge1,435 mm (4 ft 8+12 in) standard gauge
Bogies2 x EMD HTC
Wheel diameter1.067 m (3 ft 6.0 in)
Minimum curve80 m (262 ft 6 in)
Wheelbase17.239 m (56 ft 6.7 in) ​
 • Axle spacing
(Asymmetrical)
  • Axles 1–2 and 5–6:
    2.022 m (6 ft 7.6 in)
  • Axles 2–3 and 4–5:
    2.127 m (6 ft 11.7 in)
 • Bogie4.149 m (13 ft 7.3 in)
Pivot centres13.259 m (43 ft 6.0 in)
Length21.349 m (70 ft 0.5 in) over buffers
Width2.629 m (8 ft 7.5 in)
Height3.912 m (12 ft 10.0 in)
Axle load20.97 t (20.64 LT; 23.12 ST)
Loco weight126 t (124 LT; 139 ST)
Fuel capacity4,543 L (999 imp gal; 1,200 US gal)
Prime moverEMD 16-645E3C
Engine typeTwo-stroke V16 diesel
AspirationTurbocharged
Displacement169.1 L (10,320 in3)
GeneratorEMD AR11 MLD-D14A
Traction motors6 × EMD D77B
Gear ratio62:15
MU workingAAR system[1][note 1]
Train heatingNone
Loco brakeAir
Train brakesAir
Safety systems
Performance figures
Maximum speed
  • 59/0 & 59/1: 60 mph (97 km/h)
  • 59/2: 75 mph (121 km/h)[1]
Power output:
 • Continuous
  • Total: 2,500 kW (3,300 hp)
  • At rails: 1,889 kW (2,533 hp)
Tractive effort:
 • Continuous291 kN (65,419 lbf) at 14 mph (23 km/h)
Brakeforce69 t (68 LT; 76 ST)
Career
Operators
Numbers
  • 59/0: 59001–59005
  • 59/1: 59101–59104
  • 59/2: 59201–59206
Axle load classRoute Availability 7
DeliveredJanuary 1986 – August 1995
First run17 February 1986[2]
Specifications are for subclasses /0 and /1 as at January 1992,[3] except where otherwise noted.

The British Rail Class 59 is a fleet of Co-Co diesel-electric locomotives built between 1985 and 1995 by the Electro-Motive Division of General Motors for use in Great Britain. A total of 15 locomotives were built for three different operators.

They were both the first privately-owned diesel locomotives, and the first US-made diesel locomotives, to operate regularly on British mainline railways. One member of the class operated in Germany between 1997 and 2014, before returning to the UK.

  1. ^ a b Green-Hughes, Evan (March 2023). "Class 59 Revolution". Hornby Magazine. No. 189. Stamford: Key Publishing. p. 67. ISSN 1753-2469.
  2. ^ Allen 1987, pp. 15–16
  3. ^ Vehicle Diagram Book No. 100 for Main Line Diesel Locomotives (PDF). Derby: Mechanical & Electrical Engineering Department, British Railways Board. January 1992. 59-0aA, 59-1aA (in work pp. 115–116). Retrieved 5 February 2023 – via Barrowmore MRG.


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