| EMD SD9 |
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Burlington Northern SD9 #6234. |
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| Specifications |
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Configuration:
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| • AAR | C-C |
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| Gauge | 4 ft 8+1⁄2 in (1,435 mm) standard gauge |
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| Wheel diameter | 40 in (1,016 mm) |
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| Wheelbase | 48 ft 7 in (14.8 m) |
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| Length | 60 ft 8.5 in (18.5 m) |
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| Fuel capacity | 1,200 or 2,400 US gal (4,500 or 9,100 L; 1,000 or 2,000 imp gal) |
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| Lubricant cap. | 200 US gal (757 L) |
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| Sandbox cap. | 50 cu ft (1.4 m3) |
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| Prime mover | EMD 16-567C |
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| Engine type | V16 diesel |
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| Boiler | Vapor-Clarkson Steam Boiler OK4625 |
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| Cylinders | 16 |
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| Performance figures |
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| Maximum speed | 65 mph (105 km/h) |
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| Power output | 1,750 hp (1.30 MW) |
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| Career |
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| Disposition | Many have been rebuilt, and are still in service. |
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| References: |
The EMD SD9 is a model of diesel locomotive built by General Motors Electro-Motive Division between January 1954 and June 1959. An EMD 567C 16-cylinder engine generated 1,750 horsepower (1.30 MW). Externally similar to its predecessor, the SD7, the SD9 was built with the improved and much more maintainable 567C engine.
471 SD9s were built for American railroads, while a further 44 were produced for export.
Many SD9s both high and short hood can still be found in service today on shortline railroads and industrial operators. Although most Class 1 roads stopped using these locomotives by the 1970s and 1980s, some remain in rebuilt form on some major Class I railroads, as switcher locomotives.
