EMD GP9

"GP9" redirects here. For the human gene, see Glycoprotein IX.
EMD GP9
An EMD GP9 equipped with dynamic brakes on the Shenandoah Valley Railroad in Staunton, Virginia.
Type and origin
Power typeDiesel-electric
BuilderGeneral Motors Electro-Motive Division (EMD)
General Motors Diesel (GMD)
ModelGP9
Build date1954 – 1963
Total produced4,272 (and 165 B units)
Specifications
Configuration:
​
 • AARB-B
 • UICBo'Bo'
Gauge4 ft 8+1⁄2 in (1,435 mm) standard gauge
5 ft 3 in (1,600 mm) (Brazil)
TrucksEMD Blomberg B (Flexicoil on some CN units)
Wheel diameter40 in (1.016 m)
Minimum curve21° (273 ft (83.21 m) radius)
Wheelbase40 ft (12.19 m)
Length56 ft 2 in (17.12 m)
Width10 ft 3+1⁄2 in (3.14 m)
Height15 ft 1⁄2 in (4.58 m)
Loco weight259,500 lb (117,700 kg)
Fuel capacity1,100 US gal (4,200 L; 920 imp gal)
Prime moverEMD 16-567C
RPM range835 max
Engine typeV16 Two-stroke diesel
AspirationRoots blower
Displacement9,072 cu in (148.66 L)
GeneratorEMD D-12-B
Traction motors(4) EMD D-37-B
Cylinders16
Cylinder size8+1⁄2 in × 10 in (216 mm × 254 mm)
Performance figures
Maximum speed65 mph (105 km/h)
Power output1,750 hp (1.30 MW)
Tractive effort64,750 lbf (288.0 kN)
Career
LocaleNorth 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,[1] incorporating a new sixteen-cylinder engine which generated 1,750 horsepower (1.30 MW).[2] 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.[3][4] 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.[3] The GP9 was succeeded by the similar but slightly more powerful GP18.[5]

  1. ^ Schafer, Mike. (1996-11-08). Classic American railroads. Osceola, WI. p. 103. ISBN 0760302391. OCLC 35033722.{{cite book}}: CS1 maint: location missing publisher (link)
  2. ^ Foster, Gerald L. (1996). "EMD GP9". A field guide to trains of North America. Boston: Houghton Mifflin. p. 28. ISBN 0395701120. OCLC 33242919.
  3. ^ a b Marre, Louis A. (1995). Diesel locomotives : the first 50 years : a guide to diesels built before 1972. Waukesha, WI: Kalmbach Pub. Co. pp. 46–50. ISBN 0-89024-258-5. OCLC 34531120.
  4. ^ Wilson, Jeff (2017). Guide to North American diesel locomotives. Waukesha, Wisconsin. p. 58. ISBN 978-1-62700-455-8. OCLC 992348779.{{cite book}}: CS1 maint: location missing publisher (link)
  5. ^ Cite error: The named reference :1 was invoked but never defined (see the help page).