MLW RS-18

MLW RS-18

300px BC Rail No. 629 at Lillooet, British Columbia in 1987

Type and origin Power type Diesel-electric Builder Montreal Locomotive Works Model RS-18 Build date December 1956 to August 1968 Total produced 351

Specifications AAR wheel arr B-B UIC class Bo'Bo' Gauge 4 ft 8 1⁄2 in (1,435 mm) Prime mover ALCO 251B RPM range 1000 (max) Engine type Four-stroke diesel Displacement 8,016 cu in (131.36 L) Generator DC generator Traction motors 4 DC traction motors Cylinders V12 Cylinder size 9 in × 10.5 in (229 mm × 267 mm) Transmission Electric Loco brake Air, optional dynamic Train brakes Air

Performance figures Power output 1,800 hp (1,340 kW)

Career Locale Canada

The MLW RS-18 was an 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.

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

Railway	Quantity	Road number	Notes
Canadian National Railway	225	3615–3745, 3830–3893, 3100–3129
Canadian Pacific Railway	72	8729–8800
Cartier Railway	8	101–108
International Nickel Company of Canada	3	208-2 – 208-4
Pacific Great Eastern Railway	29	587–599, 614–626, 628–630	578–599 renumbered 601–613; to British Columbia Railway 601–630
Quebec Iron and Titanium	1	6	Renumbered 16
Roberval and Saguenay Railway	2	24, 25
Wabush Lake Railway / Arnaud Railway	11	901–911
Totals	351

See also

• List of MLW diesel locomotives

External links

• Media related to at Wikimedia Commons