The EMD MP15, sometimes referenced as MP15DC, is a 1,500 hp (1,119 kW) diesel–electric road switcher locomotive model produced by General Motors' Electro-Motive Division between 1974 and 1980. It was equipped with a V12 12-645E engine sporting a Roots blower. The length was either 47 ft 8 in (14.53 m) or 48 ft 8 in (14.83 m) depending on the build date.[1]
Quick Facts Type and origin, Power type ...
EMD MP15DC |
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Specifications |
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Configuration:
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• AAR | B-B |
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Gauge | 4 ft 8+1⁄2 in (1,435 mm) standard gauge |
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Trucks | Blomberg B |
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Wheel diameter | 40 in (1,016 mm) |
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Minimum curve | 55° (107 ft (32.614 m)[2]: 0–2 |
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Wheelbase | 24 ft 2 in (7.366 m) between bolsters; 9 ft 0 in (2.743 m) between axles in each truck |
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Length | 47 ft 8 in (14.53 m) or 48 ft 8 in (14.83 m) depending on build date[1] |
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Width | 10 ft 0+3⁄4 in (3.067 m) |
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Height | 15 ft 0 in (4.57 m) |
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Loco weight | 248,000 lb (112,493 kg)[2]: 0–1 |
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Fuel capacity | 1,100 or 1,400 US gal (4,200 or 5,300 L; 920 or 1,170 imp gal) |
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Lubricant cap. | 197 or 284 US gal (746 or 1,075 L; 164 or 236 imp gal) |
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Coolant cap. | 230 US gal (871 L; 192 imp gal) |
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Sandbox cap. | 0.849 or 1.133 m3 (30.0 or 40.0 cu ft) |
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Prime mover | EMD 12-645E |
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RPM: | |
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• RPM low idle | 235 RPM |
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• RPM idle | 318±4 RPM (normal) 517±15 RPM (switching 2 mode) |
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• Maximum RPM | 904±4 RPM |
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Engine type | V12 diesel |
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Aspiration | Mechanical |
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Displacement |
- 645 cu in (10.57 L) / cyl
- 7,740 cu in (126.8 L)
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Generator | D32 |
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Traction motors | 4 × D77/78 DC |
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Cylinders | 12 |
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Cylinder size | 9+1⁄16 in × 10 in (230 mm × 254 mm) |
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Gear ratio | 62:15 |
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Performance figures |
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Maximum speed | 65 mph (104.6 km/h)[2]: 0–2 |
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Power output | 1,500 hp (1,119 kW) |
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Tractive effort | 62,000 lbf (275.79 kN) |
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Close
The early MP15 and the SW1500 were similar in appearance and applications. They were fitted with the same engine in a similar appearance. The primary difference is the MP15's standard Blomberg B trucks.[1]