EMD GP9

Specifications
Specifications
Configuration:;
• AAR	B-B
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge; 5 ft 3 in (1,600 mm) (Brazil)
Trucks	EMD Blomberg B (Flexicoil on some CN units)
Wheel diameter	40 in (1.016 m)
Minimum curve	21° (273 ft (83.21 m) radius)
Wheelbase	40 ft (12.19 m)
Length	56 ft 2 in (17.12 m)
Width	10 ft 3+1⁄2 in (3.14 m)
Height	15 ft 1⁄2 in (4.58 m)
Loco weight	259,500 lb (117,700 kg)
Fuel capacity	1,100 US gal (4,200 L; 920 imp gal)
Prime mover	EMD 16-567C
RPM range	835 max
Engine type	V16 Two-stroke diesel
Aspiration	Roots blower
Displacement	9,072 cu in (148.66 L)
Generator	EMD D-12-B
Traction motors	(4) EMD D-37-B
Cylinders	16
Cylinder size	8+1⁄2 in × 10 in (216 mm × 254 mm)

Type and origin
Type and origin
Power type	Diesel-electric
Builder	General Motors Electro-Motive Division (EMD); General Motors Diesel (GMD)
Model	GP9
Build date	1954 – 1963
Total produced	4,272 (and 165 B units)

EMD GP9
EMD GP9
	An EMD GP9 equipped with dynamic brakes on the Shenandoah Valley Railroad in Staunton, Virginia.
Power type
Type and origin
Power type	Diesel-electric
Builder	General Motors Electro-Motive Division (EMD); General Motors Diesel (GMD)
Model	GP9
Build date	1954 – 1963
Total produced	4,272 (and 165 B units)
Configuration:;
Specifications
Configuration:;
• AAR	B-B
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge; 5 ft 3 in (1,600 mm) (Brazil)
Trucks	EMD Blomberg B (Flexicoil on some CN units)
Wheel diameter	40 in (1.016 m)
Minimum curve	21° (273 ft (83.21 m) radius)
Wheelbase	40 ft (12.19 m)
Length	56 ft 2 in (17.12 m)
Width	10 ft 3+1⁄2 in (3.14 m)
Height	15 ft 1⁄2 in (4.58 m)
Loco weight	259,500 lb (117,700 kg)
Fuel capacity	1,100 US gal (4,200 L; 920 imp gal)
Prime mover	EMD 16-567C
RPM range	835 max
Engine type	V16 Two-stroke diesel
Aspiration	Roots blower
Displacement	9,072 cu in (148.66 L)
Generator	EMD D-12-B
Traction motors	(4) EMD D-37-B
Cylinders	16
Cylinder size	8+1⁄2 in × 10 in (216 mm × 254 mm)
Maximum speed
Performance figures
Maximum speed	65 mph (105 km/h)
Power output	1,750 hp (1.30 MW)
Tractive effort	64,750 lbf (288.0 kN)
Locale
Career
Locale	North America, South America

The EMD GP9 is a four-axle diesel-electric locomotive built by General Motors' Electro-Motive Division between 1954 and 1959. The GP9 succeeded the GP7 as the second model of EMD's General Purpose (GP) line, incorporating a new sixteen-cylinder engine which generated 1,750 horsepower (1.30 MW). This locomotive type was offered both with and without control cabs; locomotives built without control cabs were called GP9B locomotives.

EMD constructed 3,626 GP9s, including 165 GP9Bs. An additional 646 GP9s were built by General Motors Diesel, EMD's Canadian subsidiary, for a total of 4,257 GP9s produced when Canadian production ended in 1963. The GP9 was succeeded by the similar but slightly more powerful GP18.

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