EMD E9

Specifications
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 567C
RPM:
• Maximum RPM	900
Engine type	V12 Two-stroke diesel
Aspiration	Roots-blower
Traction motors	4 × GM D37
Cylinders	12

Type and origin
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

EMD E9
EMD E9
	UP #949 leads an excursion through Clinton, Iowa in August 1995.
Power type
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
Configuration:;
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 567C
RPM:
• Maximum RPM	900
Engine type	V12 Two-stroke diesel
Aspiration	Roots-blower
Traction motors	4 × GM D37
Cylinders	12
Maximum speed
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
Locale
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.

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