The EMD SD40-2 is a 3,000-horsepower (2,200 kW) C-C diesel-electric locomotive built by EMD from 1972 to 1989.
Quick Facts Type and origin, Power type ...
EMD SD40-2 |
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Specifications |
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Configuration:
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• AAR | C-C |
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• UIC | Co′Co′ |
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• Commonwealth | Co-Co |
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Gauge | 4 ft 8+1⁄2 in (1,435 mm) standard gauge 5 ft 3 in (1,600 mm), Brazil 1,000 mm (3 ft 3+3⁄8 in) metre gauge, Guinea and Brazil |
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Driver dia. | 40 in (1,016 mm) |
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Wheelbase | 43 ft 6 in (13.26 m) between bolsters; 13 ft 7 in (4.14 m) between axles in each truck |
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Length | 68 ft 10 in (20.98 m) over the coupler pulling faces |
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Width | 10 ft 3+1⁄8 in (3.13 m) over the grabirons |
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Height | 15 ft 7+1⁄8 in (4.75 m) |
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Loco weight | 368,000 lb (167,000 kilograms) or 184 short tons (164 long tons; 167 t) |
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Fuel type | Diesel |
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Fuel capacity | 3,200–4,000 US gal (12,000–15,000 L; 2,700–3,300 imp gal) |
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Prime mover | EMD 16-645E3 |
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Engine type | V16 diesel engine |
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Aspiration | turbocharged |
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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 | 3,000 hp (2,240 kW) |
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Tractive effort | Starting: 115,000 lbf (52,163 kgf) @31.5% Continuous: 82,100 lbf (37,240 kgf) @11 mph (18 km/h) |
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The SD40-2 was introduced in January 1972 as part of EMD's Dash 2 series, competing against the GE U30C and the ALCO Century 630. Although higher-horsepower locomotives were available, including EMD's own SD45-2, the reliability and versatility of the 3,000-horsepower (2,200 kW) SD40-2 made it one of the best-selling models in EMD's history, edged out only by the GP9, and was the standard of the industry for several decades after its introduction. The SD40-2 was an improvement over the SD40, with modular electronic control systems similar to those of the experimental DDA40X.
Peak production of the SD40-2 was in the mid-1970s. Sales of the SD40-2 began to diminish after 1981 due to the oil crisis, increased competition from GE's Dash-7 series and the introduction of the EMD SD50, which was available concurrently to late SD40-2 production. The last SD40-2 delivered to a United States railroad was built in July 1984, with production continuing for railroads in Canada until 1988, Mexico until February 1986, and Brazil until October 1989.
The SD40-2 has seen service in Canada, Mexico, Brazil and Guinea. To suit export country specifications, General Motors designed the JT26CW-SS (British Rail Class 59) for Great Britain, the GT26CW-2 for Yugoslavia, South Korea, Iran, Morocco, Peru and Pakistan, while the GT26CU-2 went to Zimbabwe and Brazil. Various customizations led Algeria to receive their version of a SD40-2, known as GT26HCW-2.