EMD SW8

EMD SW8
EMD SW8 retired from the USAF Titan missile program
Type and origin
Power typeDiesel–electric
Builder
ModelSW8, TR6
Build dateSeptember 1950 – February 1954
Total produced
  • EMD SW8: 309
  • GMD SW8: 65
  • EMD TR6A: 12
  • EMD TR6B: 12
Specifications
Configuration:
 • AARB-B
 • UICBo’Bo’
Gauge4 ft 8+12 in (1,435 mm) standard gauge
Length44 ft 5 in (13.54 m)
Width9 ft 11.6 in (3.038 m)
Height14 ft 6.2 in (4.425 m)
Loco weight230,000 lb (104,326 kg)
Prime moverEMD 8-567B
Engine typeV8 Two-stroke diesel
AspirationRoots-type supercharger
Cylinders8
Performance figures
Maximum speed65 mph (105 km/h)
Power output800 hp (600 kW)
Tractive effort:
 • Starting57,000 lbf (254 kN) at 25%
 • Continuous36,000 lbf (160 kN) at 11 mph (18 km/h)
Career
Locale

The EMD SW8 is a diesel switcher locomotive manufactured by General Motors Electro-Motive Division and General Motors Diesel between September 1950 and February 1954. Power is supplied by an EMD 567B 8-cylinder engine, for a total of 800 hp (600 kW). A total of 309 of this model were built for United States railroads and 65 for Canadian railroads. Starting in October 1953 a number of SW8s were built with either the 567BC or 567C engine.