EMD SD45X
An EMD SD45X is a 6-axle experimental diesel-electric locomotive built by General Motors Electro-Motive Division between June 1970 and February 1971. Power was provided by an EMD 645E3A 20-cylinder engine which generated 4,200 horsepower (3,130 kW). 7 examples of this locomotive model were built for American railroads. 6 of these units would end up in service with Southern Pacific Railroad. One was rebuilt in 1980 by Morrison-Knudsen into an SD45Xm with a long hood from a scrapped DD35.
| Qty. | Railroad | Road Numbers | Date | Builders #s | Notes |
|---|---|---|---|---|---|
| 1 | EMD | 4201 | 6/70 | 36806 | EMD demo, to SP 9503, 12/72 |
| 2 | EMD | 4202, 4203 | 2/71 | 36807, 36808 | EMD demo, to SP 9504-9505, 12/72 |
| 1 | EMD | 5740 | 6/70 | 34123 | |
| 1 | Southern Pacific | 9500 | 8/70 | 35741 | |
| 2 | Southern Pacific | 9501, 9502 | 9/70 | 35742, 35743 | |
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 Southern Pacific No. 9502 leads a freight train through the Donner Pass in 1980 | |||||||||||||||||
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References
- Pinkepank, Jerry A. (1973). The Second Diesel Spotter's Guide. Milwaukee, Wisconsin: Kalmbach Publishing. ISBN 978-0-89024-026-7.
- Sarberenyi, Robert. EMD SD45X Original Owners. Retrieved on August 27, 2006
Further reading
- Strapac, Joseph A. (November 1970). "Espee's SD-45X's". Pacific News. No. 109. pp. 3–5. ISSN 0030-879X. Archived from the original on November 3, 2018.
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