EMD SW1200

BN 251, an EMD SW1200, works the yard in Eola, Illinois (just east of Aurora).

Type and origin
Power type	Diesel-electric
Builder	General Motors Electro-Motive Division, General Motors Diesel, Canada
Model	SW1200
Build date	January 1954 – May 1966
Total produced	1,056

Specifications
Gauge	4 ft 8 ¹⁄₂ in (1,435 mm) standard gauge 1,000 mm (3 ft 3 ³⁄₈ in) metre gauge, Chile 5 ft (1,524 mm)(?), Panama 4 ft 8 ¹⁄₂ in (1,435 mm) standard gauge, Brazil
Prime mover	EMD 567C
Engine type	V12 diesel
Cylinders	12

Performance figures
Power output	1,200 hp (895 kW)

Career
Locale	North America, South America
Disposition	many scrapped, many still in use

An EMD SW1200 is a diesel switcher locomotive built by General Motors Electro-Motive Division between January 1954 and May 1966. Power was provided by an EMD 567C 12-cylinder engine which generated 1,200 hp (895 kW). Late SW1200s built in 1966 were built with the 567E 12-cylinder engine. Additional SW1200 production was completed by General Motors Diesel in Ontario Canada between September 1955 and June 1964.

737 examples of this locomotive model were built for American railroads, 287 were built for Canadian railroads 4 were built for Brazilian Railroads, 25 were built for a Chilean Industrial firm, and 3 were built for the Panama Canal Railway.

A cow-calf variation, the TR12, was cataloged, but none were built.

A few units were built with dynamic brakes, featuring large square box with a fan on top of the hood, right in front of the cab.

An SW1200RS is a variation of the standard SW1200 that featured large front and rear (on some units) numberboard housings, EMD Flexicoil B-B trucks, and larger fuel tanks for roadswitcher service. The majority of the Canadian National and Canadian Pacific SW1200 fleets were purchased as SW1200RS units.

Original buyers

Units built by Electro-Motive Division, USA

Railroad	Quantity	Road numbers	Notes
Aliquippa and Southern Railroad	13	1201–1213
Amapa Railway	4	1-4	Brazil
Ashley, Drew and Northern Railway	2	176, 178
Atchison, Topeka and Santa Fe Railway	3	2439–2441
Baltimore and Ohio Railroad	8	9614–9621
Bauxite and Northern Railway	1	11
Bellefonte Central Railroad	1	5624
Belt Railway of Chicago	3	524–526
Birmingham Southern Railroad	2	200–201
Chicago and Illinois Midland Railroad	6	18–23
Chicago and North Western Railway	12	310–321	Acquired by EJ&E Railway then to Gary Railway Co. (315 and 316 not part of GRW fleet)
Chicago, Burlington and Quincy Railroad	22	9271–9292
Chicago, Milwaukee, St. Paul and Pacific Railroad (“Milwaukee Road”)	48	1637–1642, 2020–2061	Renumbered 600–619, 625–652 (not in order)
Chicago, Rock Island and Pacific Railroad	17	920–936
Chile Exploration Company	25	911–935	Chile
Colorado and Southern Railway	5	156–160
Commonwealth Edison	1	16
Conemaugh and Black Lick Railroad	2	120–121
Coos Bay Lumber Company	3	1201–1203	Built with dynamic brakes.
Cuyahoga Valley Railway	7	1280–1286
Delaware, Lackawanna and Western Railroad	8	561–568	to Erie Lackawanna 456–463
Denver and Rio Grande Western Railroad	10	130–139
De Queen and Eastern Railroad	1	D-5
Elgin, Joliet and Eastern Railway	8	300–307	300,301,303,304,305 and 307 are now part of the Gary Railway Co. fleet per the 2009 CN acquisition of EJ&E Railway. 306 to LTEX 306
Florida East Coast Railway	7	229–235
Fort Worth and Denver Railway	4	607–610
Grand Trunk Western Railroad	18	1269–1270, 1505–1508, 1511–1519, 7017–7019
Great Lakes Steel	16	16, 39–53
Great Northern Railway	6	29–33, 100
Houston Belt and Terminal Railway	5	33–37
Illinois Terminal Railroad	12	775–786
Inland Steel Company	27	88–114
Kansas City Terminal Railway	10	70–79
Lake Superior Terminal and Transfer	1	105
Louisville and Nashville Railroad	4	2297–2300
Midland Electric Coal Company	1	1201
Minneapolis, Northfield and Southern Railway	6	30–35	to Soo Line
Minneapolis, St. Paul and Sault Ste. Marie Railroad, (“Soo Line”)	8	321–328	321, 323 and 324 were acquired by EJ&E Railway then part of Gary Railway Co.
Soo Line (Wisconsin Central Railroad)	8	2120–2127
Missouri Pacific Railroad	116	1100–1166, 1175–1201, 1255–1259, 1263–1279
Missouri Pacific (Texas and Pacific Railway)	20	1280–1299
Missouri-Kansas-Texas Railroad	8	1–6, 43–44
New York, New Haven and Hartford Railroad	20	640–659
New Orleans Public Belt Railroad	2	71–72
Norfolk and Portsmouth Belt Line Railroad	15	101–115
Northern Pacific Railway	59	119–177
Oliver Iron Mining Company	9	940–948
Pacific Power and Light	1	10
Panama Canal Railway	3	661-663
Patapsco and Back Rivers Railroad	10	125–134
Pennsylvania Railroad	35	7900–7934
Peoria and Pekin Union Railway	1	500
Philadelphia, Bethlehem and New England Railroad	5	39–43
Point Comfort and Northern Railway	1	4
Reading Company	5	2715–2719
Republic Steel Corporation	2	362, 895
Reserve Mining Company	1	1212
Richmond, Fredericksburg and Potomac Railroad	5	81–85
River Terminal Railway	2	63–64
Rockdale, Sandow and Southern Railroad	1	8
Sandersville Railroad	1	200
Simpson Logging Company	2	1200–1201	Built with Dynamic Brakes.
Southern Pacific Transportation Company	27	1597–1623
Southern Pacific (Texas and New Orleans Railroad)	12	113–118, 123–128
St. Louis Southwestern Railway (“Cotton Belt”)	17	1062–1073, 2289–2293
Steelton and Highspire Railroad	1	44
Terminal Railroad Association of St. Louis	25	1219–1243
Tooele Valley Railway	1	100
U.S. Steel	2	SX1–SX2
Wabash Railroad	5	375–379
West Virginia Northern Railroad	1	52	Built with Dynamic Brakes.
Weyerhaeuser Timber Company	1	304
Wheeling Steel	7	1250, 1254–1259
Woodward Iron Company	1	52
Total	769

Units built by General Motors Diesel, Canada

Railroad	Quantity	Road numbers	Notes
Canadian Forest Products	3	301–303	Flexicoil trucks, built with dynamic brakes
Canadian National Railway	208	1227–1268, 1271–1397, 1575–1597, 7020–7035	12/13/1500's have Flexicoil trucks and numberboards at both ends.
Canadian Pacific Railway	72	8100–8171	Flexicoil trucks, numberboards at front only
Dominion Foundries and Steel (“Dofasco”)	1	14
Essex Terminal Railway	1	105
Quebec Iron and Titanium	1	5	Romaine River Ry
Roberval and Saguenay Railway	1	23
Total	287

Surviving and preserved units

Grand Trunk Western 1512 is now owned by COE and is currently sitting on a siding in Detroit, Michigan.

Lake Superior Terminal and Transfer Railway 105 is operated by the Minnesota Transportation Museum as Northern Pacific Railway 105.

Fremont and Elkhorn Valley Railroad 1219 built for Chicago & North Western is operated by Fremont Dinner Train as the "Glen Bales" 1219 and currently pulls diner cars as a for-profit corporate venture.

HudBay Minerals 1274 built for Canadian National Railway and HudBay Minerals 8153 built for Canadian Pacific Railway are operating as industrial yard locomotives at HudBay Minerals Flin Flon.

Coos Bay Lumber Company 1203 is now being operated by Coos Bay Rail Link as a road switcher and can be seen anywhere from Eugene, OR, to Coos Bay, OR, wearing road number 1203.

Crab Orchard & Egyptian 1136 and 1161 are both still in operation as short line freight haulers on the CO&E lines based in Herrin, Illinois and Marion, Illinois respectively.

Resolute Forest Products used 1305 at its now closed mill in Iroquois Falls, Ontario, Canada. It was rebuilt by Diesel Electric Services in Sudbury, Ontario, Canada, in August and September 2012.

Quincy Railroad (California), owned by Sierra Pacific Industries at their mill in Quincy, California, has QRR SW1200 No. 5, bulider No. 28344, built June 1963. Lineage is; ex-Amador Central No. 11, former Ashley Drew & Northern No. 1208, née-ADN No. 178

Former B&O 9614 was acquired many years ago by the Potomac Electric Power Company for use at its power generating station in Alexandria, Virginia, which later became the property of Mirant, then GenOn Energy. Over the years the surrounding area changed from industrial use to residential and, after much community action, the plant closed on October 1, 2012. As of August 2013 the locomotive was still on site at the dormant plant but has since been transferred to the power generating station near Morgantown, MD.

Former Texas and New Orleans 113 is now working for Key Cooperative in Newton, Iowa at its grain facility.

Englewood Railway on Vancouver Island, British Columbia, operates four SW1200, three of which have been rebuilt with 1,500 hp (1,100 kW) Caterpillar engines, the fourth retaining its original power plant. The locomotives also have larger fuel tanks, dynamic brakes, and operate as "road" locomotives hauling lumber. Three of these locomotives were originally owned by Canadian Forest Products (units 301 to 303), and one from COOS (Englewood Unit 304).

References

Wikimedia Commons has media related to EMD SW1200 locomotives.

Pinkepank, Jerry A. (1973). The Second Diesel Spotter’s Guide. Milwaukee, WI: Kalmbach Publishing Company. ISBN 0-89024-026-4.
Kristopans, Andre J. (September 10, 2014). "EMC/EMD 201A and 567 Switchers". Utah Rails.
Kristopans, Andre J. (October 2, 2014). "General Motors Diesel". Utah Rails.
Kristopans, Andre J. (September 22, 2015). "GM Export Models". Utah Rails.

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