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FM H-12-46 Diesel-Electric Locomotive
The FM H-12-46 was a light road switcher of Fairbanks-Morse design manufactured exclusively by the Canadian Locomotive Company from October, 1951–January, 1953 for the Canadian National Railway. Only thirty of the 1,200 hp, six-cylinder opposed piston engine locomotives were produced. The units (assigned Nos. 7600–7629) were configured in an A1A-A1A wheel arrangement, mounted atop a pair of three-axle trucks.

Externally, they boasted many of the same Raymond Loewy design influences found on the larger and more powerful FM H-16-66 model, some of which were built during the same period. None of the units are known to exist today.

FM H-12-46 Overview
Type and origin
Power type: Diesel-Electric
Builder: Canadian Locomotive Company
Model: H-12-44
Build date: October 1951— January 1953
Total produced: 30
Specifications
Configuration:
​ • AAR A1A-A1A
Gauge: 4 ft 8 1⁄2 in (1,435 mm)
Prime mover: FM 38D-8 1/8
Engine type: 2-stroke diesel
Aspiration: Roots blower
Displacement: 6,222 in³ (101.8 L)
Cylinders: 6 (Opposed piston)
Cylinder size 8.125 in × 10 in (206 mm × 254 mm)
Transmission: DC generator, DC traction motors
Locomotive brake: Straight air
Train brakes: Air
Performance figures
Maximum speed: 60  mph (97 km/h)
Power output: 1,200 hp (895 kW)
Career
Locale: North America

See also:

Canadian Locomotive Company

Fairbanks-Morse

F-M Diesel-Electric Locomotives

Diesel-Electric Locomotives

Locomotives

CLC logo
Canadian National Railway No. 1616, an F-M H-12-46 locomotive. Built in 1951-53 by Canadian Locomotive Co.

Canadian National Railway No. 1616, an F-M H-12-46 locomotive. Built in 1951-53 by Canadian Locomotive Co.

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