FM H-12-46

Type and origin
Power type	Diesel
Builder	Fairbanks-Morse
Model	H-12-44
Build date	October 1951 — January 1953
Total produced	30

Specifications
AAR wheel arr.	A1A-A1A
Gauge	4 ft 8 ¹⁄₂ in (1,435 mm)
Prime mover	FM 38D-6
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
Loco 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

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 #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.

References

"Fairbanks-Morse 38D8 Diesel Engine". PSRM Diesel Locomotives. Retrieved January 1, 2006.
Pinkepank, Jerry A. (1973). The Second Diesel Spotter’s Guide. Milwaukee, WI: Kalmbach Publishing Company. ISBN 0-89024-026-4.
Kirkland, John F. (November 1985). The Diesel Builders Volume 1: Fairbanks-Morse and Lima-Hamilton. Interurban Press. ISBN 0-916374-69-6.

External links

Fairbanks-Morse H12-44, H12-44TS & H12-46 Roster

Fairbanks-Morse

Locomotives	FM Consolidated line FM Erie-built FM H-10-44 FM H-12-44 FM H-12-44TS FM H-12-46 FM H-15-44 FM H-16-44 FM H-16-66 FM H-20-44 FM OP800 FM P-12-42 FM H-24-66

Other products	Canon Ranch Railroad Eclipse Windmill Eclipse windmill Fairbanks Morse 38 8-1/8 diesel engine Moriarty Eclipse Windmill

People	Thaddeus Fairbanks Charles Hosmer Morse

Facilities	Fairbanks-Morse Warehouse

Related	Colt's Manufacturing Company EnPro Industries Garlock Sealing Technologies GGB Bearing Technology Stemco Technetics Group

Diesel locomotives built by Fairbanks-Morse

Switchers	H-10-44 H-12-44 H-12-44TS

4 axle road switchers	H-15-44 H-16-44 H-20-44

6 axle road switchers	H-12-46 H-16-66 H-24-66

Consolidation Line	CFA-16-4 CFA-20-4 CFA-24-5 CPA-16-4 CPA-16-5 CPA-20-5 CPA-24-5

Other Cab units	Erie-built OP800 P-12-42

(See also: List of Fairbanks-Morse locomotives)

Diesel locomotives built by the Canadian Locomotive Company

Baldwin designs	DS-4-4-1000 DRS-4-4-1000

Fairbanks-Morse designs	H-12-44 H-12-46 H-16-44 H-24-66 CFA-16-4 CFB-16-4 CPA-16-4 CPB-16-4 CPA-16-5 CPB-16-5

Diesel-electric switcher locomotives

Alco	ALCO Boxcab ALCO 600 HH600 HH660 HH900 HH1000 S-1 S-2 S-3 S-4 S-5 S-6 T-6 SB-8/SSB-9

Baldwin	VO-660 DS-4-4-660 DS-4-4-750 S-8 RS-4-TC VO-1000 DS-4-4-1000 S-12

Fairbanks-Morse	H-10-44 H-12-44 H-12-44TS H-12-46

GE	60-ton boxcab 100-ton boxcab 600-hp centercab 1000-hp centercab DEY-2 EN-6 25-ton 35-ton 43-ton 44-ton 45-ton 50-ton 60-ton 65-ton 70-ton 80-ton 95-ton 100-ton 110-ton 125-ton 126-ton 128-ton 1800-hp transfer 2000-hp transfer U5B U6B

GM/EMD	SC, SW, NC, NC1, NC2, NW, NW1, NW1A, NW4, T NW2 NW3 NW5 TR1 SW1 SW7 SW8 SW9 SW600 SW900 SW1000 SW1001 SW1200 SW1500 SW1504 MP15DC MP15AC MP15T RS1325 GMD1

Lima-Hamilton	LS-750 LS-800 LS-1000 LS-1200

National Railway Equipment	1GS7B 2GS14B 3GS21B 3GS21C

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