EMD F3

Specifications
Specifications
Configuration:;
• AAR	B-B
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Trucks	Blomberg B
Wheel diameter	40 in (1,016 mm)
Minimum curve	23° (250.79 ft or 76.44 m radius)
Wheelbase	39 ft (11.89 m)
Length	50 ft 8 in (15.44 m)
Width	10 ft 8 in (3.25 m)
Height	15 ft (4.57 m)
Loco weight	234,000 lb (106,000 kg)
Fuel capacity	1,200 US gal (4,500 L; 1,000 imp gal)
Prime mover	EMD 16-567B
RPM range	275-800
Engine type	Two-stroke V16 diesel
Aspiration	Roots-type supercharger
Displacement	9,072 cu in (148.66 L)
Generator	EMD D-12
Traction motors	(4) EMD D-17-B or D-27-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)
Model	F3
Build date	July 1945 – February 1949
Total produced	1,106 A units, 694 B units

EMD F3
EMD F3
	BN #9762, ex-NP #6502, leading the North Coast Hiawatha into Yakima, Washington in August 1971.
Power type
Type and origin
Power type	Diesel-electric
Builder	General Motors Electro-Motive Division (EMD)
Model	F3
Build date	July 1945 – February 1949
Total produced	1,106 A units, 694 B units
Configuration:;
Specifications
Configuration:;
• AAR	B-B
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Trucks	Blomberg B
Wheel diameter	40 in (1,016 mm)
Minimum curve	23° (250.79 ft or 76.44 m radius)
Wheelbase	39 ft (11.89 m)
Length	50 ft 8 in (15.44 m)
Width	10 ft 8 in (3.25 m)
Height	15 ft (4.57 m)
Loco weight	234,000 lb (106,000 kg)
Fuel capacity	1,200 US gal (4,500 L; 1,000 imp gal)
Prime mover	EMD 16-567B
RPM range	275-800
Engine type	Two-stroke V16 diesel
Aspiration	Roots-type supercharger
Displacement	9,072 cu in (148.66 L)
Generator	EMD D-12
Traction motors	(4) EMD D-17-B or D-27-B
Cylinders	16
Cylinder size	8+1⁄2 in × 10 in (216 mm × 254 mm)
Maximum speed
Performance figures
Maximum speed	102 mph (164 km/h)
Power output	1,500 hp (1.1 MW)
Tractive effort	55,000 lb (25,000 kg)

The EMD F3 is a 1,500-horsepower (1,100 kW) B-B freight- and passenger-hauling carbody diesel locomotive produced between July 1945 and February 1949 by General Motors’ Electro-Motive Division. Final assembly was at GM-EMD's La Grange, Illinois plant. A total of 1,106 cab-equipped lead A units and 694 cabless booster B units were built.

The F3 was the third model in GM-EMD's highly successful F-unit series of cab unit diesel locomotives, and it was the second most produced of the series. The F3 essentially differed from the EMD F2 in that it used the “new” D12 generator to produce more power and from the later EMD F7 in electrical equipment. Some late-model F3's had the same D27 traction motors, along with the heavier-duty electrical cables, used in the F7, and were referred to as model F5 by EMD's Engineering Department.