| EMD SW9 | |
| Powertype: | Diesel-electric |
| Builder: | General Motors Electro-Motive Division (EMD) General Motors Diesel (GMD, Canada) |
| Builddate: | November 1950 – December 1953 |
| Buildmodel: | SW9, TR5 |
| Aarwheels: | B-B |
| Uicclass: | Bo′Bo′ |
| Primemover: | EMD 12-567B |
| Cylindercount: | 12 |
| Enginetype: | V12 Two-stroke diesel |
| Aspiration: | Roots-type supercharger |
| Poweroutput: | 1200abbr=onNaNabbr=on |
| Totalproduction: | SW9: 786 (EMD) plus 29 (GMD) TR5A: 10 TR5B: 12 |
| Locale: | North America |
The EMD SW9 is a model of diesel switcher locomotives built by General Motors Electro-Motive Division between November 1950 and December 1953. Additional SW9s were built by General Motors Diesel in London Ontario Canada from December 1950 to March 1953. Power was provided by an EMD 567B 12-cylinder engine, producing 1200hp.[1]
786 examples of this model were built for American railroads and 29 were built for Canadian railroads.[2]
The SW9 was EMD's successor to the SW7. Like the SW7, the SW9 retained a power output of 1,200 hp and the same general design. It differed in lacking the upper hood vents found on the SW7, and with the installation of a 567B engine to replace the 567A found in the SW7.
Starting in October 1953 a number of SW9s were built with the 567BC engine. In December 1953, one locomotive, Weyerhaeuser 305, was built with a 567C engine. The 567C was subsequently installed on the SW9's successor, the SW1200.
In addition to the single units produced, ten TR5 cow-calf paired sets were produced (eight for the Union Pacific Railroad, and two for the Union Railroad of Pittsburgh). The Union Railroad also bought an additional two TR5B "calves".
| Railroad | Quantity | Road numbers | Notes |
|---|---|---|---|
| 1 | 1200 | Built with a 567BC engine | |
| 7 | 705–711 | 710-711 built with 567BC engines | |
| 1 | 12 | ||
| 1 | 174 | ||
| 19 | 2420–2438 | 2434-2438 built with 567BC engines | |
| 65 | 652–716 | ||
| 8 | 590–597 | ||
| 6 | 598–603 | ||
| 1 | 10 | ||
| 1 | 5323 | ||
| 4 | 520–523 | ||
| 12 | 1220–1231 | ||
| 8 | 30–37 | ||
| 1 | 13 | ||
| 10 | 301–310 | ||
| 11 | 1084–1094 | ||
| 2 | 802–803 | ||
| 1 | 5 | First SW9 built | |
| 35 | 5080–5093, 5245–5265 | 5092-5093 built with 567BC engines | |
| 1 | 104 | ||
| 9 | 1101–1105, 1122–1125 | ||
| 2 | 9269–9270 | to Burlington Northern 160-161 | |
| 5 | 775–779 | Built with 567BC engines | |
| 2 | 47–48 | ||
| 2 | 118–119 | ||
| 10 | 551–560 | ||
| 3 | 119–121 | ||
| 15 | 11–25 | ||
| 7 | 434–440 | ||
| 8 | 221–228 | ||
| 2 | 906–907 | ||
| 7 | 7010–7016 | ||
| Great Lakes Steel Corporation | 3 | 27–29 | |
| 7 | 17–23 | to Burlington Northern 149-155 | |
| 2 | 121–122 | ||
| 10 | 22–31 | ||
| 70 | 9320–9334, 9430–9484 | ||
| 7 | 9002-9008 | 9004-9008 built with 567BC engines | |
| Anaconda Copper (Inspiration Consolidated Copper Company) | 2 | 22–23 | |
| 1 | 1000 | ||
| 1 | 100 | Built with 567BC engine | |
| 13 | 280–292 | ||
| 30 | 2267–2296 | ||
| 2 | 334–335 | 335 built with 567BC engine | |
| 1 | 82 | ||
| 3 | 1643–1645 | Renumbered 620-622 | |
| 10 | 201–210 | to Illinois Central | |
| 22 | 9170–9191 | renumbered 1232-1253 | |
| 10 | 1226–1235 | Renumbered 12-21 | |
| 4 | 23–25, 27 | ||
| 12 | 73–84 | ||
| 5 | 34–38 | ||
| 60 | 8922-8930, 8941–8951, 8962–9001 | ||
| New York Central (Indiana Harbor Belt Railroad) | 7 | 9002–9008 | |
| New York Central (Pittsburgh and Lake Erie Railroad) | 20 | 8931–8940, 8952–8961 | |
| New York, Chicago and St. Louis Railroad ("Nickel Plate Road") | 12 | 233–244 | |
| 4 | 115–118 | to Burlington Northern 156-159 | |
| 6 | 934–939 | ||
| 36 | 8513–8544, 8859–8860, 8869–8870 | ||
| 2 | 411–412 | ||
| 4 | 35–38 | ||
| 9 | 231–239 | Built with 567BC engines | |
| 4 | 2–5 | ||
| 1 | 344 | ||
| 1 | 1211 | ||
| Soo Line (Wisconsin Central Railway) | 8 | 2111–2115, 2117–2119 | |
| Southern Pacific (Texas and New Orleans Railroad) | 5 | 108–112 | renumbered to 2208-2212 in 1965 |
| 3 | 43–45 | to Burlington Northern 167-169 | |
| St. Louis Southwestern Railway ("Cotton Belt") | 4 | 1058–1061 | renumbered to 2204-2207 in 1965 |
| St. Louis–San Francisco Railway ("Frisco") | 10 | 305–314 | |
| 4 | 40–43 | ||
| 13 | 1206–1218 | ||
| 13 | 1024–1036 | ||
| 42 | 1825–1866 | 1847-1866 built with 567BC engines | |
| 14 | 575–588 | ||
| 12 | 363–374 | ||
| 6 | 601–606 | ||
| 3 | 302–303, 305 | 305 built with 567C engine | |
| 2 | 1252–1253 | 1253 built with 567BC engine | |
| Total | 786 | ||
| Railroad | Quantity | Road numbers | Notes |
|---|---|---|---|
| Canadian National Railways | 10 | 7000–7009 | |
| 6 | 7400–7405 | ||
| 5 | 5240–5244 | ||
| 3 | 14–16 | to Burlington Northern 146-148 | |
| 1 | 70 | ||
| 4 | 55–58 | ||
| Total | 29 | ||
| Railroad | Quantity A units | Quantity B units | Road numbers A units | Road numbers B units | Notes |
|---|---|---|---|---|---|
| 8 | 8 | 1870A–1877A | 1870B–1877B | Dynamic brakes were added to TR5As by UP shortly after delivery | |
| 2 | 4 | 701–702 | 701C–704C | ||
| Total | 10 | 12 | |||
In 1994 Amtrak acquired nine SW9s from various railroads and had them rebuilt by the National Railway Equipment Company. These switchers were reclassified as EMD SW1000R.[3]