EMD SW7

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EMD SW7

Power type	Diesel-electric
Builder	General Motors Electro-Motive Division (EMD)
Model	SW7, TR4
Build date	October 1949 – January 1951
Total production	SW7: 489 TR4: 15 sets
Gauge	4 ft 8½ in (1,435 mm)
Prime mover	EMD 567A
Engine type	Two-stroke diesel
Aspiration	Roots-type supercharger
Cylinders	V12
Power output	1,200 hp (895 kW)

The EMD SW7 was a diesel switcher locomotive built by General Motors Electro-Motive Division between October 1949 and January 1951. It was powered by a V12 567A engine developing 1,200 horsepower (895 kW). 489 SW7 locomotives were produced. In addition, 15 TR4 cow-calf paired sets were produced.

[edit] References

• Laundry, Mark. The Yard Limit - EMD SW7. Retrieved June 2, 2005.
• The UNofficial EMD Homepage. SW7 Order Numbers. Retrieved June 2, 2005.

v • d • e Diesel-electric switcher locomotives built by GM-EMD SC, NC, NC1, NC2, T, NW1, NW1A, NW4, SW, NW2, NW3, NW5, TR1, SW1, SW7, SW8, SW9, SW600, SW900, SW1000, SW1001, SW1200, SW1500, SW1504, MP15DC, MP15AC, MP15T, RS1325, GMD1 (See also: List of GM-EMD locomotives)