Class M at Secretariat Halt, Colombo

Sri Lanka Railway Department, branded “Sri Lanka Railways”, is a key department of the Sri Lankan Government under the Ministry of Transport with a history that begins in 1858. Sri Lanka Railways (formerly CGR – Ceylon Government Railway) operates the nation’s rail network linking Colombo – the commercial capital of Sri Lanka – and many population centres and tourist destinations.

Diesel locomotives of Sri Lanka Railway categorized in to several classes and their sub classes.

  • Class M – Main Line Locomotives (Diesel Electric)
    • Class M2 General Motors G12 locomotives are considered the most successful – being in service since 1954.
    • Class M9 Alstom Prima model has been the most unsuccessful.
    • The most powerful locomotive is Class M8 WDM-2, with 2,600 hp.
  • Class W – Main Line Locomotives (Diesel Hydraulic)
  • Class S – Diesel Push Pull Trains (Diesel Multiple Units)
  • Class Y – Shunters
  • Class N & P – Narrow Gauge

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