EMD SD40A

Type and origin
Power type	Diesel-electric
Builder	General Motors Electro-Motive Division (EMD)
Build date	1969 – 1970
Total produced	18

Specifications
AAR wheel arr.	C-C
Gauge	4 ft 8 ¹⁄₂ in (1,435 mm) standard gauge
Prime mover	EMD 645E3
Engine type	V16 diesel
Cylinders	16

Performance figures
Power output	3,000 hp (2,240 kW)

Career
Operators	Illinois Central, Soo Line
Locale	United States
Disposition	6 in service with IC (CN) as of 2010

An EMD SD40A is a six-axle 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

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.

6- and 8-axle diesel-electric locomotives built by GM-EMD

Six-axle road power	SD7 SD9 SD18 SD24 SD28 SD30C-ECO SD32ECO SD35 SDP35 SD38 SD38AC SD38-2 SD39 SDL39 SD40 SD40X SD40A SD40-2 SD40-2W SD40T-2 SD40-2S SDP40 SDP40F SD45 SD45X SD45-2 SD45T-2 SDP45 SD50 SD50F SD60 SD60F SD60I SD60M SD70 SD70I SD70M SD70MAC SD70M-2 SD70ACe SD75M SD75I SD80MAC SD89MAC SD90MAC

Eight-axle road power	DD35 DD35A DDA40X DDM45

See also: List of GM-EMD locomotives

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