EMD GP15-1

Specifications
Specifications
Configuration:;
• AAR	B-B
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Length	54 ft 11 in (16.74 m)
Loco weight	246,000 lb (111,600 kg)
Fuel capacity	2,400 imp gal (11,000 L; 2,900 US gal)
Prime mover	EMD 12-645E
Engine type	V12 2-stroke diesel
Aspiration	Roots blower
Displacement	7,740 cu in (126.8 L)
Cylinders	12
Cylinder size	9.1 in × 10 in (231 mm × 254 mm)
Transmission	diesel electric
Loco brake	Straight air
Train brakes	26-L air

Type and origin
Type and origin
Power type	Diesel-electric
Builder	General Motors Electro-Motive Division (EMD)
Model	GP15-1
Build date	June 1976 – March 1982
Total produced	310

EMD GP15-1
EMD GP15-1
	Union Pacific Yard (UPY) 742, a GP15-1 idles in Union Pacific's Global 1 intermodal yard in Chicago, IL.
Power type
Type and origin
Power type	Diesel-electric
Builder	General Motors Electro-Motive Division (EMD)
Model	GP15-1
Build date	June 1976 – March 1982
Total produced	310
Configuration:;
Specifications
Configuration:;
• AAR	B-B
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Length	54 ft 11 in (16.74 m)
Loco weight	246,000 lb (111,600 kg)
Fuel capacity	2,400 imp gal (11,000 L; 2,900 US gal)
Prime mover	EMD 12-645E
Engine type	V12 2-stroke diesel
Aspiration	Roots blower
Displacement	7,740 cu in (126.8 L)
Cylinders	12
Cylinder size	9.1 in × 10 in (231 mm × 254 mm)
Transmission	diesel electric
Loco brake	Straight air
Train brakes	26-L air
Power output
Performance figures
Power output	1,500 hp (1,100 kW)
Tractive effort	47,000 lbf (210 kN)
Locale
Career
Locale	United States

The EMD GP15-1 is a 4-axle diesel-electric locomotive built by General Motors Electro-Motive Division between June 1976 and March 1982. Intended to provide an alternative to the rebuilding programs that many railroads were applying to their early road switchers, it is generally employed as a yard switcher or light road switcher. This locomotive is powered by a 12-cylinder EMD 645E engine, which generates 1,500 hp (1,119 kW). The GP15-1 uses a 50-foot-9-inch (15.47 m) frame, has a wheelbase of 29 ft 9 in (9.07 m) and has a length over couplers of 54 ft 11 in (16.74 m). A total of 310 units were built for American railroads. A number of GP15-1s remain in service today for yard work and light road duty. The radiator section is similar to those found on the EMD SD40T-2 and EMD SD45T-2 "tunnel motors," leading some observers to incorrectly identify the units as such or as GP15Ts, and giving them the nickname "baby tunnel motors".

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