MLW RS-18
| MLW RS-18 | |
|---|---|
 Canadian National 3684, an MLW RS-18 at the Canadian Railway Museum | |
| Specifications | |
| Power type | Diesel-electric |
| Builder | Montreal Locomotive Works |
| Model | RS-18 |
| Build date | December 1956 to August 1968 |
| Total produced | 351 |
| AAR wheel arr. | B-B |
| UIC classification | Bo'Bo' |
| Gauge | 4 ft 8 1⁄2 in (1,435 mm) |
| Prime mover | ALCO 251B |
| Engine 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 |
| Power output | 1,800 hp (1,340 kW) |
| Locomotive brake | Air, optional dynamic |
| Train brakes | Air |
| Career | |
| Locale | Canada |
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.
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
References
- Pinkepank, Jerry A. (1973). The Second Diesel Spotter’s Guide. Milwaukee, WI: Kalmbach Publishing Company. pp. 208, 248–249. ISBN 0-89024-026-4.
External links
Media related to MLW RS-18 locomotives at Wikimedia Commons
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