Editing EMD SW1

{{Short description|Diesel-electric locomotive manufactured between 1938 and 1953}}
{{more citations needed|date=August 2016}}
{{Infobox locomotive
| name = EMC/EMD SW1
| powertype = Diesel-electric
| image = Hugh llewelyn 6589 (5961018035).jpg
| caption = [[Penn Central Transportation|PC]] #8589, still in [[Pennsylvania Railroad|PRR]] livery, switching at [[Pittsburgh]] in 1970
| builder = [[Electro-Motive Diesel|General Motors Electro-Motive Corp (later Division)]] (EMC/EMD)
| buildmodel = SW1
| builddate = {{Start date|1938|12}} – {{end date|1953|11}}
| totalproduction = 661
| aarwheels = B-B
| gauge = {{track gauge|ussg|allk=on}}
| trucks = [[AAR type A switcher truck|AAR Type A]] or B
| wheeldiameter = {{convert|40|in|0|abbr=on}}
| minimumcurve = [[Degree of curvature|57°]] ({{convert|104.79|ft|m|abbr=on|disp=or}}<!-- ?? -->)
| wheelbase = {{convert|30|ft|m|2|abbr=on}}
| length = {{convert|44|ft|11+1/4|in|2|abbr=on}}
| width = {{convert|10|ft|m|2|abbr=on}}
| height = {{convert|14|ft|4+5/8|in|2|abbr=on}}
| locoweight = {{convert|196,000|lb|abbr=on}}
| primemover = [[Electro-Motive Diesel|EMD]] [[EMD 567|6-567B]] or [[EMD 567|6-567A]] or [[EMD 567|6-567AC]]
| enginetype = [[V6 engine|V6]] [[two-stroke diesel engine|2-stroke diesel]]
| aspiration = [[Roots-type supercharger|Gear-driven Roots blower]]
| displacement = {{convert|3402 |cuin|L|abbr=on}}
| cylindercount = 6
| cylindersize = {{convert|8+1/2|x|10|in|mm|0|abbr=on}}
| gear ratio = 62:15
| maxspeed = {{convert|65|mph|0|abbr=on|lk=on}}
| poweroutput = {{convert|600|hp|0|abbr=on|lk=on}}
| generator = GM D-4
| tractionmotors = (4) GM D-7A
| tractiveeffort = {{convert|49,000|lb|abbr=on}}
| locale = [[United States]] <br /> [[Mexico]]
}} 
The '''EMD SW1''' is a {{convert|600|hp|adj=on}} [[Diesel locomotive#Diesel–electric|diesel-electric]] [[switcher locomotive]] built by [[General Motors Corporation|General Motors]]' [[Electro-Motive Diesel|Electro-Motive Corporation (later Division)]] between December 1938 and November 1953. Final assembly was at EMD's plant at [[La Grange, Illinois|LaGrange]] ([[McCook, Illinois|McCook]]) Illinois. The SW1 was the second generation of {{convert|3402 |cuin|L|abbr=on}} switcher from EMD, succeeding the [[EMC SC|SC]] (cast frame) and [[EMC SW|SW]] (welded frame). The most significant change from those earlier models was the use of an engine of EMD's own design, the then-new [[EMD 567|567]] engine, here in {{convert|600|hp|abbr=on}} [[V6 engine|V6]] form. 661 locomotives of this design were built,<ref name=":0">{{Cite book|last=Schafer|first=Mike|url=https://www.worldcat.org/oclc/38738930|title=Vintage diesel locomotives|date=1998|publisher=Motorbooks International|isbn=0-7603-0507-2|location=Osceola, WI|pages=22–25|oclc=38738930}}</ref> with a gap in production between March 1943 and September 1945 due to [[World War II]].

The SW1 was the start of a long line of [[List of EMD locomotives#Switchers (SW/NW/SC/NC/MP)|SW series switchers]] produced by EMD. It was complemented by the [[EMD SW7|SW7]] in 1949 and the [[EMD SW8|SW8]] in 1950.<ref name=":0" /> SW1 production ceased in November 1953, with its replacement, the equally powerful [[EMD SW600|SW600]], starting production in February 1954.<ref name=":0" />

== Locomotive name ==
EMD arrived at the name '''SW1''' based on the locomotive's power (S for 600&nbsp;hp) and frame design (W for welded), and the number 1 was added to distinguish the new design from the previous [[EMD SW]].<ref name=":0" /> As new and more powerful SW designs emerged in the 1950s, the SW name evolved to instead stand for "switcher."<ref name=":0" />

==Engine and powertrain==
The SW1 introduced a 6-cylinder version of the 567 (later 567A) series engine to EMC/EMD switchers.  Developing {{convert|600|hp|adj=on}} at [[Revolutions per minute|800 rpm]], this engine remained in production until 1966. Designed specifically for railroad locomotives, this was a mechanically-aspirated, two-stroke, 45 degree V type, with an {{convert|8+1/2|by|10|in|mm|0|abbr=on}}, [[Bore (engine)|bore]] by [[Stroke (engine)|stroke]], giving {{convert|567|cuin|L}} displacement per cylinder. A direct current generator provides power to four [[traction motor]]s, two on each truck, in a B-B arrangement. The SW1, like most EMD switchers, uses the [[AAR type A switcher truck]]. EMC/EMD had built all its  components since 1939.<ref name=pin73>{{cite book|last=Pinkepank|first=Jerry A|title=The Second Diesel Spotter's Guide|year=1973|publisher=Kalmbach Books|lccn=66-22894|pages=10, 26, 35}}</ref><ref name=ros03>{{cite book|editor-first=David|editor-last=Ross|title=The Encyclopedia of Trains and Locomotives|year=2003|isbn=978-0-7607-9679-5|page=264|publisher=Barnes & Noble }}</ref>

== Production changes ==
Several changes were made to the SW1 over its production life. Internally, the post-war locomotives used the 567A engine.

Externally, the two center cab windows over the hood, which were curved to follow the roofline originally, became flat-topped after mid-1950. Another external difference is the taper of the hood to the cab, which was a two-stage taper in earlier units but became a single taper in later production. Very early locomotives were delivered with a stubby exhaust stack, but this did not lift the diesel exhaust sufficiently clear of crew visibility. All later units were delivered with EMD's standard conical switcher stack, while early units were generally modified with taller stacks too. Early locomotives had a single large headlight, while later had twin sealed-beam headlights.<ref>{{cite book|last=Pinkepank|first=Jerry A|title=The Second Diesel Spotter's Guide|year=1973|publisher=Kalmbach Books|lccn=66-22894|page=35}}</ref>

== Original owners ==
{| class="wikitable"
! Railroad !! Quantity !! Road numbers !! Notes
|-
| [[Allegheny and South Side Railway]] ||style="text-align:center;" |1 ||style="text-align:center;" |101 || 
|-
| [[Allis-Chalmers]] ||style="text-align:center;" |1 ||style="text-align:center;" |8 ||
|-
| [[Angelina and Neches River Railroad]] ||style="text-align:center;" |1 ||style="text-align:center;" |10 ||
|-
| [[Atlantic and East Carolina Railway]] ||style="text-align:center;" |1 ||style="text-align:center;" |9 ||
|-
| [[Atlantic Coast Line Railroad]] ||style="text-align:center;" |1 ||style="text-align:center;" |1901 || Rejected, to [[Richmond Terminal Railroad]] #1
|-
| [[Baltimore and Ohio Railroad]] ||style="text-align:center;" |16 ||style="text-align:center;" |200–215 ||#208, B&O renumbered to #8408, is currently owned by Wilmington & Western Railroad.  2nd oldest SW1 in routine scheduled service.
|-
| [[Baltimore and Ohio Chicago Terminal Railroad]] ||style="text-align:center;" |6 ||style="text-align:center;" | 216-221 ||
|-
| [[Boston and Maine Railroad]] ||style="text-align:center;" |24 ||style="text-align:center;" |1109–1132 || 1109 owned by RMNE. Thomaston, CT 1113 owned and operated by BSRM, Adams/Lenox, MA. 1127 preserved by the Danbury Railway Museum in Danbury, CT.
|-
| [[Broward County Port Authority]] ||style="text-align:center;" |1 ||style="text-align:center;" |400 || 
|-
| [[Buffalo Creek Railroad]] ||style="text-align:center;" |1 ||style="text-align:center;" |42 || 
|-
| [[Canton Railroad]] ||style="text-align:center;" |5 ||style="text-align:center;" |21–25 || 
|-
| [[Central Indiana Railroad]] ||style="text-align:center;" |1 ||style="text-align:center;" |1 ||
|-
| [[Central of Georgia Railroad]] ||style="text-align:center;" |3 ||style="text-align:center;" |2, 3, 7 ||
|-
| [[Central Railroad of New Jersey]] ||style="text-align:center;" |4 ||style="text-align:center;" |1009–1012 ||
|-
| [[Chattanooga Traction Company]] ||style="text-align:center;" |1 ||style="text-align:center;" |4 ||
|-
| [[Chicago and Eastern Illinois Railroad]] ||style="text-align:center;" |5 ||style="text-align:center;" |95–99 || 99 to MP 6001, now Dardanelle & Russellville 16
|-
| [[Chicago and North Western Railway]] ||style="text-align:center;" |20 ||style="text-align:center;" |1207–1212, 1214, 1215,<br />1268–1279 || 
|-
| [[Chicago District Electric Generating]] ||style="text-align:center;" |2 ||style="text-align:center;" |3, 4 || 
|-
| [[Chicago Short Line Railway]] ||style="text-align:center;" |2 ||style="text-align:center;" | 200–201 ||
|-
| [[Chicago, Burlington and Quincy Railroad]] ||style="text-align:center;" |18 ||style="text-align:center;" |9136–9153 || 
|-
| [[Chicago, Indianapolis and Louisville Railroad]] ||style="text-align:center;" |3 ||style="text-align:center;" | DS-50, 5, 6 || DS-50 renumbered to 1 
|-
| [[Chicago, Milwaukee, St. Paul and Pacific Railroad]] ||style="text-align:center;" |25 ||style="text-align:center;" |1610–1634 || renumbered 
|-
| [[Chicago, St. Paul, Minneapolis and Omaha Railway]] ||style="text-align:center;" |1 ||style="text-align:center;" |55 || 
|-
| [[Chihuahua Forests]] ||style="text-align:center;" |1 ||style="text-align:center;" | 500 || only SW1 exported
|-
| [[Cleveland Quarries]] ||style="text-align:center;" |1 ||style="text-align:center;" |2 || built with a 567AC engine. Last SW1 built. 
|-
| [[Commonwealth Edison]] ||style="text-align:center;" |6 ||style="text-align:center;" |10–15 ||
|-
| [[Conemaugh and Black Lick Railroad]] ||style="text-align:center;" |6 ||style="text-align:center;" |60–65 ||
|-
| [[Delaware, Lackawanna and Western Railroad]] ||style="text-align:center;" |11 ||style="text-align:center;" |427–437 || 
|-
| [[Detroit Edison]] ||style="text-align:center;" |3 ||style="text-align:center;" |210–212 ||
|-
| [[Detroit, Toledo and Ironton Railroad]] ||style="text-align:center;" |2 ||style="text-align:center;" |900–901 || re-engined with 8-567B 800&nbsp;hp engines, new hoods 1952. Reclassified SW8.
|-
| [[Donner-Hanna Coke]] ||style="text-align:center;" |1 ||style="text-align:center;" |1 ||
|-
| [[Elgin, Joliet and Eastern Railroad]] ||style="text-align:center;" |27 ||style="text-align:center;" |220–246 ||
|-
| EMD (demonstrator units)* ||style="text-align:center;" |7 ||style="text-align:center;" |755, 804, 905, 906,<br />911, 700, 152 || EMC 755 was the first SW1
|-
| [[Erie Railroad]] ||style="text-align:center;" |1 ||style="text-align:center;" |360 || 
|-
| [[Fort Worth and Denver Railway]] ||style="text-align:center;" |2 ||style="text-align:center;" |602, 604 || 
|-
| [[Fort Worth Belt]] ||style="text-align:center;" |1 ||style="text-align:center;" |1 || 
|-
| [[Galveston Wharves]] ||style="text-align:center;" |5 ||style="text-align:center;" |201–205 || 201 to [[Dardanelle and Russellville Railroad|Dardanelle & Russellville]] 15
|-
| [[Garden City Western Railway]] ||style="text-align:center;" |1 ||style="text-align:center;" |201 || 
|-
| [[Georgia and Florida Railroad (1926-1971)|Georgia and Florida Railroad]] ||style="text-align:center;" |3 ||style="text-align:center;" |70–72 || 
|-
| [[Georgia Marble Company]] ||style="text-align:center;" |1 ||style="text-align:center;" |1 ||
|-
| [[Granite City Steel]] ||style="text-align:center;" |2 ||style="text-align:center;" |600–601 || 
|-
| [[Great Lakes Steel]] ||style="text-align:center;" |14 ||style="text-align:center;" |12, 14–18, 22,<br />30, 31, 33–36, 38 ||
|-
| [[Great Northern Railway (U.S.)|Great Northern Railway]] ||style="text-align:center;" | 9 ||style="text-align:center;" |5101–5105, 80–83 || 5101–5105 renumbered to 75-79. Then to Burlington Northern 75-83. 77 was sold to Walla Walla Valley in 1975.
|-
| [[Great Western Railway of Colorado]] ||style="text-align:center;" |1 ||style="text-align:center;" |61 || 
|-
| [[Hanna Furnace Company]] ||style="text-align:center;" |3 ||style="text-align:center;" |14–16 ||
|-
| [[Houston Belt and Terminal Railway]] ||style="text-align:center;" |1 ||style="text-align:center;" |10 || 
|-
| [[Illinois Central Railroad]] ||style="text-align:center;" |19 ||style="text-align:center;" |9014–9032 ||
|-
| [[Inland Steel Company]] ||style="text-align:center;" |12 ||style="text-align:center;" |54, 57, 70–73, 76–81 ||
|-
| [[Lehigh Portland Cement Company]] ||style="text-align:center;" |1 ||style="text-align:center;" |5 || 
|-
| [[Lehigh Valley Railroad]] ||style="text-align:center;" |6 ||style="text-align:center;" |112–115, 118-119 || #114 is currently owned by Wilmington & Western Railroad.  Oldest SW1 in routine scheduled service.
|-
| [[Louisiana Midland Railway]] ||style="text-align:center;" |1 ||style="text-align:center;" |11 || 
|-
| [[Louisville and Nashville Railroad]] ||style="text-align:center;" |5 ||style="text-align:center;" |11–15 || 
|-
| [[Manufacturers' Junction Railway]] ||style="text-align:center;" |1 ||style="text-align:center;" |6 || 
|-
| [[Maryland and Pennsylvania Railroad]] ||style="text-align:center;" |1 ||style="text-align:center;" |70 ||
|-
| [[Mathieson Chemical]] ||style="text-align:center;" | 2 ||style="text-align:center;" |1–2 || 
|-
| [[McLouth Steel]] ||style="text-align:center;" |3 ||style="text-align:center;" |3–5 || 
|-
| [[Memphis Union Station]] ||style="text-align:center;" |1 ||style="text-align:center;" |10 ||
|-
| [[Metropolitan Sanitary District of Greater Chicago]] ||style="text-align:center;" |3 ||style="text-align:center;" |1–3 ||
|-
| [[Missouri Pacific Railroad]] ||style="text-align:center;" |10 ||style="text-align:center;" |9004–9006, 9011, 9200–9205 || 
|-
| [[Nashville, Chattanooga and St. Louis Railway]] ||style="text-align:center;" | 1 ||style="text-align:center;" |15 || 
|-
| [[New York Central Railroad]] ||style="text-align:center;" |103 ||style="text-align:center;" |600–621 (first), 622–654,<br />574–599, 600–621 (second) ||9 (2nd) is now WRIX 1001, located on RVT - White City, OR0
|-
| [[Nickel Plate Road]] ||style="text-align:center;" |2 ||style="text-align:center;" |105–106 || #106 is now Independent Locomotive Services #920
|-
| [[Pennsylvania Railroad]] ||style="text-align:center;" |85 ||style="text-align:center;" |5910, 5944–5953, 5987–5999,<br />9104, 9137–9154, 9200–9203,<br />9205-9209, 9396–9428 ||
|-
| [[Pere Marquette Railroad]] ||style="text-align:center;" |2 ||style="text-align:center;" |10–11 ||
|-
| [[Phelps Dodge Corporation]] ||style="text-align:center;" |1 ||style="text-align:center;" |A || 
|-
| [[Philadelphia, Bethlehem and New England Railroad]] ||style="text-align:center;" |9 ||style="text-align:center;" |212–218, 220, 221 ||
|-
| [[Public Service Company of Northern Illinois]] ||style="text-align:center;" |3 ||style="text-align:center;" |9–11 || 
|-
| [[Portland Traction Company]] (Oregon) ||style="text-align:center;" |2 ||style="text-align:center;" |100, 200 ||100 is currently owned, restored to as delivered and operated by Oregon Pacific Railroad on its original home rails.
|-
| [[Reading Railroad]] ||style="text-align:center;" |9 ||style="text-align:center;" |16–24 || 
|-
| [[Republic Steel]] ||style="text-align:center;" |22 ||style="text-align:center;" |50–54, 300–306, 340–341,<br /> 352, 370–372, 890–891, 893–894 ||
|-
| [[Chicago, Rock Island and Pacific Railroad]] ||style="text-align:center;" |18 ||style="text-align:center;" |529–546 || 536 operational as AOK 536. Serial number 1685 build 4/42
|-
| [[Roscoe, Snyder and Pacific Railway]] ||style="text-align:center;" |1 ||style="text-align:center;" |100 || 
|-
| [[Sahara Coal Company]] ||style="text-align:center;" |1 ||style="text-align:center;" |(no numbers) || 
|-
| [[Seaboard Air Line Railroad]] ||style="text-align:center;" |1 ||style="text-align:center;" |1200 || 
|-
| [[Soo Line Railroad]] ||style="text-align:center;" |1 ||style="text-align:center;" |320 ||
|-
| [[Southern Railway (US)|Southern Railway]] ||style="text-align:center;" |9 ||style="text-align:center;" |2002–2004, 2007–2011, 8565 || 
|-
| [[Southern Pacific Railroad]] ||style="text-align:center;" |15 ||style="text-align:center;" |11, 1000, 1004–1016 || 11 is Texas & New Orleans
|-
| [[St. Joseph Belt Railroad]] ||style="text-align:center;" |1 ||style="text-align:center;" |12 || 
|-
| [[St. Joseph Terminal Railroad]] ||style="text-align:center;" |2 ||style="text-align:center;" |1–2 || 
|-
| [[Tennessee Coal and Iron Railroad]] ||style="text-align:center;" |4 ||style="text-align:center;" |1000–1003 || 
|-
| [[Terminal Railroad Association of St Louis]] ||style="text-align:center;" |8 ||style="text-align:center;" |501–508 ||
|-
| [[Union Railroad (Pittsburgh, Pennsylvania)|Union Railroad]] ||style="text-align:center;" |22 ||style="text-align:center;" |455–476 || 
|-
| [[US Department of Defense]] (US Army) ||style="text-align:center;" |4 ||style="text-align:center;" |7001–7004 || to Alaska 1203, 1201-1202, 1204 
|-
| [[Wabash Railroad]] ||style="text-align:center;" |11 ||style="text-align:center;" |101–111 || Two units acquired by [[Tulsa-Sapulpa Union Railway]], now in service as Numbers 101 & 102.<ref>{{cite web|url= https://www.american-rails.com/sapulpa.html |title=Tulsa-Sapulpa Union Railway|publisher=American-Rails.com|accessdate=June 24, 2021}}</ref>
|-
| [[Warner Sand and Gravel Company]] ||style="text-align:center;" |1 ||style="text-align:center;" |15 ||
|-
| [[Western Pacific Railroad]] ||style="text-align:center;" |2 ||style="text-align:center;" |502–503 ||WP 501 was ex-EMC 906
|-
| [[Wheeling Steel Company]] ||style="text-align:center;" |4 ||style="text-align:center;" |1001–1004 || 
|-
!Total !! 661 !! !!
|-
|}

* There were 7 units built as EMD demonstrators: #152 (to [[Scullin Steel]] #6), 700 (to [[Manufacturers' Junction Railway]] #7), 755 (to [[Inland Steel]] #51), 804 (to [[Southern Pacific Railroad]] #1000, pictured above), 905 (to Central of Georgia #1), 906 (to [[Western Pacific Railroad]] #501), 911 (to [[Great Lakes Steel]] #11)
*Owego and Harford Railway was still operating one SW1 for switching duties in their yard as of 2010, sitting derelict in a railyard in Owego, NY, as of 2019 
*As of 2013, Amtrak still has one SW1 on their roster. #737 is used for switching chores at the Wilmington Delaware shops.
*As of 2021, [[Metra]] commuter rail rosters one SW1. It is used for Yard Service and power on work trains on the [[Metra Electric]] and [[Rock Island District|Rock Island]] lines. It was originally built in 1945 for the [[Chicago, Rock Island and Pacific Railroad|Rock Island]]. Metra used to operate a second SW1, built in 1939, but sold it in June 2021 via online auction for $45,000 due to an internal engine failure.<ref>{{Cite web|title=SWITCH LOCOMOTIVE - govdeals.com|url=https://www.govdeals.com/index.cfm?fa=Main.Item&itemid=309&acctid=10615|access-date=2021-07-10|website=www.govdeals.com|language=en}}</ref> The unit built in 1939 was rumored to be one of the oldest operating diesels in [[Illinois]] and the oldest operating locomotive in the U.S. that was not preserved.

== Preservation ==
{{Incomplete list|date=July 2017}}
[[Image:HODIMG 3004.JPG|thumb|right|180px|An SW1 at the [[Heart of Dixie Railroad Museum]] in [[Calera, Alabama]].]]

*Andersen Windowalls 3110 is preserved in operational condition at the [[Minnesota Transportation Museum]]. It was previously [[Norfolk and Western Railway]] 3110 and originally [[Wabash Railroad]] 110, built in June 1949.
*[[Arkansas–Oklahoma Railroad]] 536 is in operational condition and in regular freight service.  It was previously [[Chicago, Rock Island and Pacific]] 536 and is painted in a Rock Island inspired paint scheme.
*[[Ballard Terminal Railroad]] 98 is one of the few SW1's operating in revenue freight service. It was originally [[Milwaukee Road]] 1619, and was for a time on the [[Seattle and North Coast Railroad]] as number 52.<ref>{{cite web |title=Pictures of BDTL 98 |url=http://www.rrpicturearchives.net/LocoPicture.aspx?id=138729 |website=RR Picture Archives |access-date=11 August 2023}}</ref>
*[[Baltimore and Ohio]] 8408 & [[Lehigh Valley Railroad|Lehigh Valley]] 114 are preserved at the [[Wilmington and Western Railroad]] in operational condition.
*Billings Grain Terminal 84, built as [[Chicago, Burlington and Quincy Railroad|Chicago, Burlington and Quincy]] 9139 in 1939, was purchased by railroad operator and leasing firm St Johns River Companies in 2022 with the goal of restoring the locomotive into operating condition. After the formation of the [[Burlington Northern Railroad|Burlington Northern]] in 1970, 9139 was renumbered to 84, where it served for 5 years before being sold to the Davenport, Rock Island and Northwestern. In 1984, the locomotive was sold to a grain elevator in [[Billings, Montana|Billings, MT]] where it remains today. 
*[[Black River and Western Railroad]] [[Lehigh Valley Railroad|Lehigh Valley]] 112, is preserved on the BR&W in operational condition. And PRR 9206 preserved and in service.
*[[Boston and Maine Railroad|Boston and Maine]] 1109 is preserved at the [[Railroad Museum of New England]].
*[[Boston and Maine]] 1127 has been acquired by the [[Danbury Railway Museum]].<ref>{{Cite web |last=Franz |first=Justin |date=2024-04-04 |title=Boston & Maine SW1 Destined for Danbury |url=https://railfan.com/boston-maine-sw1-destined-for-danbury/ |access-date=2024-07-14 |website=Railfan & Railroad Magazine |language=en-CA}}</ref>
*BRMX 1849, built as [[Boston and Maine Railroad|Boston and Maine]] 1113, is preserved at the Berkshire Scenic Railway, in [[Lenox, MA]].
[[File:SP 1006 2024.jpg|thumb|right|Southern Pacific 1006 operates at the [[Southern California Railway Museum]].]]
*[[Cargill]] 6751, built in 1940 with construction number 1111, was one of the first SW1s that Electro-Motive built.<ref name=Utah>{{cite web |url=http://theunionstation.org/museums/utah-state-railroad-museum/spencer-s-eccles-rail-center/ |title=Rolling Stock of the Utah State Railroad Museum: Cargill 6751: SW1 |work=Utah State Railroad Museum: Spencer S. Eccles Rail Center |publisher=Union Station |location=Ogden, Utah |year=2016 |access-date=2017-01-27 |url-status=dead |archive-url=https://web.archive.org/web/20170127182009/http://theunionstation.org/museums/utah-state-railroad-museum/spencer-s-eccles-rail-center/ |archive-date=2017-01-27 }}</ref> After buying the unit, the [[Baltimore and Ohio Railroad]] (B&O) initially numbered the locomotive as No. 213, but subsequently changed the number to 8413.<ref name=Utah/> Leased by the [[Washington and Old Dominion Railroad]] in 1968, B&O 8413 was one of the last locomotives to operate on the W&OD before the railroad closed during the same year.<ref name=Harwood137>{{Cite book |last=Harwood |first=Herbert Hawley Jr. |url=https://books.google.com/books?id=2GvQAAAACAAJ|title = Rails to the Blue Ridge: The Washington and Old Dominion Railroad, 1847–1968|location=Fairfax Station, Virginia|publisher=[[Northern Virginia Regional Park Authority]]|edition=3rd|year=2000|page=137|isbn=0615114539|oclc=44685168|via=[[Google Books]]}} .</ref> After several transfers of ownership, the locomotive was acquired by [[Cargill]], becoming Cargill No. 6751.<ref name=Utah/> Cargill moved the locomotive to [[Ogden, Utah]] in 1993 for use in the company's Globe Mill.<ref name=Utah/> Following Cargill's donation of the locomotive in 2010, the [[Utah Central Railway (1992)|Utah Central Railway]] and the [[Union Pacific Railroad]] delivered it on May 21, 2011, to the Utah State Railroad Museum for display at [[Union Station (Ogden, Utah)|Union Station]] in Ogden.<ref name=Utah/>
*[[Commonwealth Edison]] 15 is preserved at the [[Illinois Railway Museum]]. This unit is in operating condition and is one of the most frequently used diesels on the property.
*[[Dardanelle and Russellville Railroad|Dardanelle & Russellville]] 16, built as [[Chicago & Eastern Illinois]] 99 and later [[Missouri Pacific]] 6001, is still in operation on the D&R. 
*[[Eureka Springs & North Arkansas Railway|Eureka Springs & North Arkansas]] 4742, built as [[Chicago & Eastern Illinois]] 98 in 1942, still in operation on this excursion line.
*Heart of Dixie 904, built as [[Memphis Union Station]] 10, is preserved at the Heart of Dixie Railroad Museum.
*[[Holly Sugar]] 1, the first SW1 built by EMC in 1939 is now preserved at the [[California State Railroad Museum]] in [[Sacramento, California]]. Built as [[Southern Pacific Lines]] 1000, the locomotive worked for the SP until its retirement in the 1970’s, then was sold to Holly Sugar and renumbered to 1. The museum donation was a coordinated effort between the museum, the Pacific Coast Chapter of the [[Railway and Locomotive Historical Society]] and [[Spreckels Sugar]] (the locomotive's last owner).
*[[Louisville and Nashville Railroad|Louisville & Nashville]] 13 is on display at the Foley Railroad Museum in [[Foley, AL]].
*[[Milwaukee Road]] 1626 is preserved at the Milwaukee Road Heritage Center. It was formerly [[Northern States Power]] X-5, Ex-[[Burlington Northern]] 79, Exx- [[Chicago Burlington & Quincy]] 9137. Built in June 1939, the locomotive is in running condition, with its original [[Electro-Motive Division]] 6-567B-1 Prime Mover.<ref>{{cite web |url=http://www.montevideomrhc.org/ |title=Home |website=montevideomrhc.org}}</ref>
*[[Monon Railroad]] 50, the first diesel locomotive owned by the Monon, is leased to the [[Hoosier Valley Railroad Museum]]. It was damaged in the move to the new home of the Indiana Transportation Museum in Logansport, Indiana. ITM also had [[Milwaukee Road]] 1613, but it was scrapped in July 2018. The locomotive was moved from Logansport, Indiana to the Hoosier Valley Railroad Museum in North Judson, Indiana in April 2021, where it will be repaired and will join the HVRM's fleet of vintage diesel locomotives. 
*[[New York Central System|New York Central]] 705, built as [[Louisville and Nashville Railroad|Louisville and Nashville]] 14, is preserved in operational condition at the Adirondack Scenic Railroad.
*[[Northern States Power]] 4 is preserved in operational condition at the Gopher State Railway Museum. It was originally built as [[Chicago, Burlington and Quincy Railroad|CB&Q]] 9146 in May 1940.
*Peabody Coal Company 470 (Former [[Delaware, Lackawanna and Western Railroad|Delaware, Lackawanna and Western]] #436) is on static display at the Museum of the Coal Industry in Lynnville, Indiana.<ref>{{Cite web|url=http://www.lynnvillecoalmuseum.org/projects.html|title=Museum Projects|website=www.lynnvillecoalmuseum.org|access-date=2017-02-25}}</ref>
*[[Pennsylvania Railroad]] 9206 is preserved in operational condition on the [[Black River and Western Railroad]].
*[[Pennsylvania Railroad]] 9408 is preserved in operational condition at the [[Railway Museum of Greater Cincinnati]].
*[[Pere Marquette Railway]] 11 is preserved at the [[Baltimore & Ohio Railroad Museum]], in [[Baltimore, MD]], in operating condition at last report.
*[[Portland Traction Company]] 100 is preserved in operational condition at the Oregon Rail Heritage Center, and is the only preserved former interurban diesel locomotive to retain the trolley poles.
*[[Sacramento Northern]] 402, originally built as [[Western Pacific Railroad|Western Pacific]] 502, is preserved at the [[California State Railroad Museum]].
*SMS Rail Service 9423, former [[Pennsylvania Railroad]] 9423, is in storage in [[Bridgeport, NJ]].
*[[Southern Pacific Lines]] 1006 is preserved in operational condition, restored to its as-built appearance. It resides at the [[Southern California Railway Museum]], (formerly known as the Orange Empire Railway Museum) and frequently pulls passenger trains for museum visitors.<ref>{{cite web |url=http://www.oerm.org/ |title=Home |website=oerm.org}}</ref>
*[[Western Pacific Railroad]] 501, originally built as [[Electro-Motive Diesel|EMC]] demonstrator 906, is preserved at the [[Western Pacific Railroad Museum]] at Portola, CA. This locomotive was the Western Pacific's first diesel-electric engine.
*Used locomotive dealer/lessor [[Western Rail Switching|Western Rail, Inc.]] owns [[Western Rail Switching|WRIX]] 1001 (built 06/1949 as [[New York Central Railroad|NYC]] # 609 (2nd), later renumbered [[New York Central Railroad|NYC]] 8435, [[Penn Central Transportation Company|PC]] 8435, [[Conrail|CR]] 8435, [[GE Railcar|GE Sayre Repair Shop]] # 2, IRLX 1006, IRLX 1001, [[WCTU Railway|WCTR]] 1001).
* [http://zwsr.org/ The Zanesville & Western Scenic Railroad] 8599, former [[Pennsylvania Railroad|PRR]] 5999, operations excursions on its scenic line in [[Fultonham, Ohio]].
*[http://www.Dura-Bond.com Dura-Bond] (former owner of [[Turtle Creek Industrial Railroad]]) operates 462 at its pipe mill in McKeesport, PA.  It is well maintained and operates as a switcher on about 7 miles of private track.

== See also ==
* [[List of GM-EMD locomotives]]

== Notes ==
{{reflist|30em}}

== References ==
* {{Dorin-North Western|page=96}}
* {{Pinkepank diesel spotters guide 2}}
* (July 2005), "Preservation Briefs", ''Trains Magazine'', p.&nbsp;71.
* TrainWeb.com. ''[http://www.trainweb.org/emdloco/index.html The Unofficial EMD homepage]''. Retrieved on January 7, 2005. Contains fairly complete builders' records for early EMD production.
* ''[https://archive.today/20130415232911/http://www.trainride.org/jsr/roster/aw3110.php Andersen Windows 3110]''.  Retrieved on December 7, 2012
* EMD Product Reference Data Card dated January 1, 1959 has the 567AC engine data used in the as-built roster.
* Billings Grain Terminal 84, https://www.stjohnsrail.com/restore84

== External links ==
* {{commons category-inline|EMD SW1 locomotives}}

{{Amtrak rolling stock}}
{{EMD diesels}}
{{Diesel Switchers}}

[[Category:B-B locomotives]]
[[Category:Electro-Motive Division locomotives|SW0001]]
[[Category:Diesel–electric locomotives of the United States]]
[[Category:Railway locomotives introduced in 1938]]
[[Category:Standard-gauge locomotives of the United States]]
[[Category:Standard-gauge locomotives of Mexico]]
[[Category:Diesel–electric locomotives of Mexico]]
[[Category:Shunting locomotives]]
[[Category:Baltimore and Ohio locomotives]]
[[Category:Chicago, Burlington and Quincy locomotives]]
[[Category:Delaware, Lackawanna and Western locomotives]]
[[Category:Erie Railroad locomotives]]
[[Category:Milwaukee Road locomotives]]
[[Category:New York Central Railroad locomotives]]
[[Category:Pennsylvania Railroad locomotives]]
[[Category:Southern Pacific Railroad locomotives]]