EMD E9

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EMD E9
UP #949 leads an excursion through Clinton, Iowa in August 1995.
Type and origin Power type Diesel-electric Builder General Motors Electro-Motive Division (EMD) Model E9 Build date April 1954 – January 1964 Total produced 100 A units, 44 B units
Specifications Configuration: ​  • AAR A1A-A1A Gauge 4 ft 8+1⁄2 in (1,435 mm) Wheel diameter 36 in (914 mm) Minimum curve 27° - 214.18 ft (65.28 m) Length 70 ft 3 in (21.41 m) Width 10 ft 7+1⁄2 in (3.239 m) Height 14 ft 7 in (4.45 m) Loco weight A unit: 315,000 lb (143,000 kg), B unit: 290,000 lb (130,000 kg) Fuel type Diesel Prime mover (2) EMD 12-567C RPM: ​  • Maximum RPM 900 Engine type V12 Two-stroke diesel Aspiration Roots-blower Traction motors 4 × GM D37 Cylinders 12
Performance figures Maximum speed 117 mph (188 km/h) Power output 2,400 hp (1,790 kW) Tractive effort 56,500 lbf (251,000 N) starting, 31,000 lbf (140,000 N) continuous
Career Locale United States Disposition 42 preserved, none in revenue service though some used on special trains, remainder scrapped

The E9 is a 2,400-horsepower (1,790 kW), A1A-A1A passenger train-hauling diesel locomotive built by General Motors' Electro-Motive Division of La Grange, Illinois, between April 1954 and January 1964. 100 cab-equipped A units were produced and 44 cabless booster B units, all for service in the United States. The E9 was the tenth and last model of EMD E-unit and differed from the earlier E8 as built only by the newer engines and a different, flusher-fitting mounting for the headlight glass, the latter being the only visible difference. Since some E8s were fitted with this, it is not a reliable way to distinguish the two. The E9 has two 1,200 hp (895 kW), V12 model 567C engines, each engine driving one generator to power two traction motors.^[1]