loco-info.com
The reference for locomotives and railcars
Navigation
Random
Search
Compare
Settings
British Rail class 21 (North British type 2)
originally D6100
Great Britain | 1958
58 produced
No. 6103 in June 1959 shortly after being delivered with empty mail carriages at Harringay West
No. 6103 in June 1959 shortly after being delivered with empty mail carriages at Harringay West
Ben Brooksbank / NB Loco Bo-Bo Diesel at Harringay West
VariantD6100 - D6137D6138 - D6157
General
Built1958-1960
ManufacturerNorth British
Axle configB-B 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length51 ft 6 in
Wheelbase37 ft
Service weight162,480 lbs
Adhesive weight162,480 lbs
Axle load40,565 lbs
Boiler
VariantD6100 - D6137D6138 - D6157
Power Plant
Power
Power sourcediesel-electric
Top speed75 mph
Starting effort45,000 lbf
EngineMAN L12V18/21S
Engine typeV12 diesel
Fuel552 us gal (diesel)
Engine output1,000 hp (746 kW)1,100 hp (820 kW)
Calculated Values
diesel locomotive
passenger
freight
Legal Notice
About
Support this project
loading...

We use cookies to save the following settings:

  • selected navigation structure
  • selected language
  • preferred units
  • spelling of railway company names

If you refuse the use of cookies, the settings will only be retained for the current session and will be reset to the default values the next time you visit the site.

Display of units

Here you can set the desired unit system for the technical data.

  • Metric: Lengths in meters, weights in tonnes, and volumes in cubic meters
  • Imperial (UK): Lengths in feet/inches, weights in long tons and volumes in imperial gallons
  • Imperial (US): Lengths in feet/inches, weights in pounds, and volumes in US gallons
  • Individual: Depends on the country of origin of each locomotive
Operator names

Here you can set the display of railway company names.

  • Short: Abbreviation or short form of the name
  • Standard: commonly used name, partially translated to English
  • Complete: full name in local language