EMD SD40A

An EMD SD40A is a six-axle road switcher diesel-electric locomotive built by General Motors Electro-Motive Division between 1969 and 1970. 18 examples of this locomotive were built exclusively for the Illinois Central Railroad. The SD40A was basically an SD40 built on an SDP45 frame. The longer SDP45 frame allowed for a larger, 5000 gallon fuel tank. This locomotive is powered by a sixteen-cylinder EMD 645E3 diesel engine, which could provide 3,000 horsepower (2,240 kW). Illinois Central Railroad used the SD40A as a long-range road-switcher, utilizing the larger fuel tank found on the SDP45. The Soo Line Railroad eventually acquired five of these units and as of 2005 they are out of service. Six other units (IC 6011, and 6013-6018) remain in service under IC, which is now a subsidiary of Canadian National Railway

EMD SD40A
Type and origin
Power typeDiesel-electric
BuilderGeneral Motors Electro-Motive Division (EMD)
Build date1969 – 1970
Total produced18
Specifications
Configuration:
​
 • AARC-C
Gauge4 ft 8 1⁄2 in (1,435 mm) standard gauge
Prime moverEMD 645E3
Engine typeV16 diesel
Cylinders16
Performance figures
Power output3,000 hp (2,240 kW)
Career
OperatorsIllinois Central, Soo Line
LocaleUnited States
Disposition6 in service with IC (CN) as of 2010

References
  • Sarberenyi, Robert. EMD SD40, SD40A, and SDP40 Original Owners. Retrieved on August 27, 2006
  • Del Grosso, Robert C. "Canadian National Railway Historical Review and Motive Power Directory" 2001, Great Northern Pacific Publications.
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