EMD SW9
CIRY 1206, an SW9 built in 1951 on October 31, 2008.
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| Type and origin | |
|---|---|
| Power type | Diesel-electric |
| Builder |
General Motors Electro-Motive Division (EMD) General Motors Diesel (GMD, Canada) |
| Model | SW9, TR5 |
| Build date | December 1950 – December 1953 |
| Total produced | SW9: 786 (EMD) plus 29 (GMD) TR5A: 10 TR5B: 12 |
| Specifications | |
|---|---|
| Gauge | 4 ft 8 1⁄2 in (1,435 mm) standard gauge |
| Prime mover | EMD 567B |
| Engine type | V12 Two-stroke diesel |
| Aspiration | Roots-type supercharger |
| Cylinders | 12 |
| Performance figures | |
|---|---|
| Power output | 1,200 hp (890 kW) |
| Career | |
|---|---|
| Locale | North America |
An EMD SW9 is a diesel switcher locomotive built by General Motors Electro-Motive Division between January 1951 and December 1953. Additional SW9s were built by General Motors Diesel in Ontario Canada from December 1950 to March 1953. Power was provided by an EMD 567B 12-cylinder engine, producing 1,200 horsepower (895 kW). Starting in October 1953 a number of SW9s were built with the 567BC engine and in December 1953 Weyerhaeuser 305 was built with a 567C engine.
In addition, ten TR5 cow-calf paired sets were produced (eight for the Union Pacific Railroad, and two for the Union Railroad of Pittsburgh, Pennsylvania. The Union Railroad also bought an additional two TR5B "calves".
786 examples of this model were built for American railroads and 29 were built for Canadian railroads.
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.
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Wikipedia