CGR class S1

Ceylon Government Railway Class S1 is a class of diesel multiple unit train-set built by English Electric for Ceylon Government Railway.

Ceylon Government Railways Class S1
In service1936–1955[1]
ManufacturerEnglish Electric
Built atPreston[2]
Number built3
Number scrapped3
Fleet numbers501, 502, 503[3]
Operator(s)Ceylon Government Railway, Now Sri Lanka Railways
Line(s) servedCoastal Line (Sri Lanka)
Train length206 ft 6 in (62.94 m)[2]
Maximum speed55 mph (89 km/h)[2]
Weight96.2 t (94.7 long tons; 106.0 short tons)[2]
Prime mover(s)English Electric H6 Type[3]
Power output2 x 180 hp (130 kW)[3]
TransmissionDiesel-electric transmission
Electric system(s)No
AAR wheel arrangementBo-2+Bo-2+2-Bo+2-Bo[1]
Braking system(s)Vacuum
Track gauge1,676 mm (5 ft 6 in)


These units arrived Ceylon, Now Sri Lanka in 1938. Three units were given the names Silver Foam (501), Silver Spray (502) and Silver Mist (503). Their inaugural run from Colombo Fort Station to Galle took place on 25 February 1938.[3] These train-sets were used only on the Coastal Line (Sri Lanka). These train-sets served CGR for about 19 years and then all train-sets were scrapped in 1955.

In 1955, two diesel locomotives named Class M3 589 and 590 were built locally using the prime movers of scrapped S1 sets.

See also


  1. "Suburban Diesel Push-Pull types". Model Railroad Club of Sri Lanka. Retrieved 20 August 2014.
  2. Nalin Abesinghe (April 2012). "Class S1 Self-propelled Articulated Power Coach" [ශ්‍රී ලකාවේ මුල්ම බලවේග දුම්රිය]. Lanka Railway Digest (in Sinhala). Sri Lanka. 1 (1): 16. ISSN 2279-1213.
  3. "Class S1". Sri Lanka Railways Info Page. Retrieved 20 August 2014.
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