MLW RS-18

The MLW RS-18 was an 1,800 hp (1,340 kW) diesel-electric locomotive built by Montreal Locomotive Works between December 1956 and August 1968. It replaced the RS-10 in MLW's catalogue, and production totalled 351 locomotives, to eight customers.

MLW RS-18
Type and origin
Power typeDiesel-electric
BuilderMontreal Locomotive Works
ModelRS-18
Build dateDecember 1956 to August 1968
Total produced351
Specifications
Configuration:
  AARB-B
  UICBo'Bo'
Gauge4 ft 8 12 in (1,435 mm) standard gauge
Prime moverALCO 251B
RPM range1000 (max)
Engine typeFour-stroke V12 diesel
Displacement8,016 cu in (131.36 L)
GeneratorDC generator
Traction motors4 DC traction motors
Cylinders12
Cylinder size9 in × 10.5 in (229 mm × 267 mm)
TransmissionElectric
Loco brakeAir, optional dynamic
Train brakesAir
Performance figures
Power output1,800 hp (1,340 kW)
Career
LocaleCanada

It was the Canadian version of the ALCO RS-11, although MLW did manufacture the RS-11 for Ferrocarriles Nacionales de México.

Canadian National Railway, by far the largest buyer of the RS-18, continued to specify the long hood as the front. By contrast, while all of Canadian Pacific Railway's RS-10s were long-hood-forward, all of their RS-18s were short-hood forward. All of CN and CP's locomotives were delivered with full-height short hoods, as were the first four Pacific Great Eastern Railway, and first Roberval and Saguenay Railway unit. The remaining production was for locomotives with a low short-hood, giving the train crew much better forward vision.

Original owners

RailwayQuantityRoad numberNotes
Canadian National Railway2253615–3745, 3830–3893, 3100–3129
Canadian Pacific Railway728729–8800
Cartier Railway8101–108
International Nickel Company of Canada3208-2 – 208-4
Pacific Great Eastern Railway29587–599, 614–626, 628–630578–599 renumbered 601–613; to British Columbia Railway 601–630
Quebec Iron and Titanium16Renumbered 16
Roberval and Saguenay Railway224, 25
Wabush Lake Railway / Arnaud Railway11901–911
Totals351

See also

References

  • Pinkepank, Jerry A. (1973). The Second Diesel Spotter's Guide. Milwaukee, Wisconsin: Kalmbach Publishing. pp. 208, 248–249. ISBN 978-0-89024-026-7.
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