EMD SW1
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TheEMD SW1is a 600-horsepower (450 kW)diesel-electricswitcher locomotivebuilt byGeneral Motors'Electro-Motive Corporation (later Division)between December 1938 and November 1953. Final assembly was at EMD's plant atLaGrange(McCook) Illinois. The SW1 was the second generation of 3,402 cu in (55.75 L) switcher from EMD, succeeding theSC(cast frame) andSW(welded frame). The most significant change from those earlier models was the use of an engine of EMD's own design, the then-new567engine, here in 600 hp (450 kW)V6form. 661 locomotives of this design were built,[1]with a gap in production between March 1943 and September 1945 due toWorld War II.
The SW1 was the start of a long line ofSW series switchersproduced by EMD. It was complemented by theSW7in 1949 and theSW8in 1950.[1]SW1 production ceased in November 1953, with its replacement, the equally powerfulSW600,starting production in February 1954.[1]
Locomotive name
[edit]EMD arrived at the nameSW1based on the locomotive's power (S for 600 hp) and frame design (W for welded), and the number 1 was added to distinguish the new design from the previousEMD SW.[1]As new and more powerful SW designs emerged in the 1950s, the SW name evolved to instead stand for "switcher."[1]
Engine and powertrain
[edit]The SW1 introduced a 6-cylinder version of the 567 (later 567A) series engine to EMC/EMD switchers. Developing 600-horsepower (450 kW) at800 rpm,this engine remained in production until 1966. Designed specifically for railroad locomotives, this was a supercharged 2 stroke 45 degree V type, with an8+1⁄2by 10 in (216 by 254 mm),borebystroke,giving 567 cubic inches (9.29 L) displacement per cylinder. A D.C. generator provides power to four motors, two on each truck, in a B-B arrangement. The SW1, like most EMD switchers, uses theAAR type A switcher truck.EMC/EMD had built all its components since 1939.[2][3]
Production changes
[edit]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.[4]
Original owners
[edit]- There were 7 units built as EMD demonstrators: #152 (toScullin Steel#6), 700 (toManufacturers' Junction Railway#7), 755 (toInland Steel#51), 804 (toSouthern Pacific Railroad#1000, pictured above), 905 (to Central of Georgia #1), 906 (toWestern Pacific Railroad#501), 911 (toGreat 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,Metracommuter rail rosters one SW1. It is used for Yard Service and power on work trains on theMetra ElectricandRock Islandlines. It was originally built in 1945 for theRock 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.[6]The unit built in 1939 was rumored to be one of the oldest operating diesels inIllinoisand the oldest operating locomotive in the U.S. that was not preserved.
Preservation
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- Andersen Windowalls 3110 is preserved in operational condition at theMinnesota Transportation Museum.It was previouslyNorfolk and Western Railway3110 and originallyWabash Railroad110, built in June 1949.
- Arkansas–Oklahoma Railroad536 is in operational condition and in regular freight service. It was previouslyChicago, Rock Island and Pacific536 and is painted in a Rock Island inspired paint scheme.
- Ballard Terminal Railroad98 is one of the few SW1's operating in revenue freight service. It was originallyMilwaukee Road1619, and was for a time on theSeattle and North Coast Railroadas number 52.[7]
- Baltimore and Ohio8408 &Lehigh Valley114 are preserved at theWilmington and Western Railroadin operational condition.
- Billings Grain Terminal 84, built asChicago, Burlington and Quincy9139 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 theBurlington Northernin 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 inBillings, MTwhere it remains today.
- Black River and Western RailroadLehigh Valley112, is preserved on the BR&W in operational condition. And PRR 9206 preserved and in service.
- Boston and Maine1109 is preserved at theRailroad Museum of New England.
- Boston and Maine1127 has been acquired by theDanbury Railway Museum.[8]
- BRMX 1849, built asBoston and Maine1113, is preserved at the Berkshire Scenic Railway, inLenox, MA.
- Cargill6751, built in 1940 with construction number 1111, was one of the first SW1s that Electro-Motive built.[9]After buying the unit, theBaltimore and Ohio Railroad(B&O) initially numbered the locomotive as No. 213, but subsequently changed the number to 8413.[9]Leased by theWashington and Old Dominion Railroadin 1968, B&O 8413 was one of the last locomotives to operate on the W&OD before the railroad closed during the same year.[10]After several transfers of ownership, the locomotive was acquired byCargill,becoming Cargill No. 6751.[9]Cargill moved the locomotive toOgden, Utahin 1993 for use in the company's Globe Mill.[9]Following Cargill's donation of the locomotive in 2010, theUtah Central Railwayand theUnion Pacific Railroaddelivered it on May 21, 2011, to the Utah State Railroad Museum for display atUnion Stationin Ogden.[9]
- Commonwealth Edison15 is preserved at theIllinois Railway Museum.This unit is in operating condition and is one of the most frequently used diesels on the property.
- Dardanelle & Russellville16, built asChicago & Eastern Illinois99 and laterMissouri Pacific6001, is still in operation on the D&R.
- Eureka Springs & North Arkansas4742, built asChicago & Eastern Illinois98 in 1942, still in operation on this excursion line.
- Heart of Dixie 904, built asMemphis Union Station10, is preserved at the Heart of Dixie Railroad Museum.
- Holly Sugar1, the first SW1 built by EMC in 1939 is now preserved at theCalifornia State Railroad MuseuminSacramento, California.Built asSouthern Pacific Lines1000, 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 theRailway and Locomotive Historical SocietyandSpreckels Sugar(the locomotive's last owner).
- Louisville & Nashville13 is on display at the Foley Railroad Museum inFoley, AL.
- Milwaukee Road1626 is preserved at the Milwaukee Road Heritage Center. It was formerlyNorthern States PowerX-5, Ex-Burlington Northern79, Exx-Chicago Burlington & Quincy9137. Built in June 1939, the locomotive is in running condition, with its originalElectro-Motive Division6-567B-1 Prime Mover.[11]
- Monon Railroad50, the first diesel locomotive owned by the Monon, is leased to theHoosier Valley Railroad Museum.It was damaged in the move to the new home of the Indiana Transportation Museum in Logansport, Indiana. ITM also hadMilwaukee Road1613, 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 Central705, built asLouisville and Nashville14, is preserved in operational condition at the Adirondack Scenic Railroad.
- Northern States Power4 is preserved in operational condition at the Gopher State Railway Museum. It was originally built asCB&Q9146 in May 1940.
- Peabody Coal Company 470 (FormerDelaware, Lackawanna and Western#436) is on static display at the Museum of the Coal Industry in Lynnville, Indiana.[12]
- Pennsylvania Railroad9206 is preserved in operational condition on theBlack River and Western Railroad.
- Pennsylvania Railroad9408 is preserved in operational condition at theRailway Museum of Greater Cincinnati.
- Pere Marquette Railway11 is preserved at theBaltimore & Ohio Railroad Museum,inBaltimore, MD,in operating condition at last report.
- Portland Traction Company100 is preserved in operational condition at the Oregon Rail Heritage Center.
- Sacramento Northern402, originally built asWestern Pacific502, is preserved at theCalifornia State Railroad Museum.
- SMS Rail Service 9423, formerPennsylvania Railroad9423, is in storage inBridgeport, NJ.
- Southern Pacific Lines1006 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.[13]
- Western Pacific Railroad501, originally built asEMCdemonstrator 906, is preserved at theWestern Pacific Railroad Museumat Portola, CA. This locomotive was the Western Pacific's first diesel-electric engine.
- Used locomotive dealer/lessorWestern Rail, Inc.ownsWRIX1001 (built 06/1949 asNYC# 609 (2nd), later renumberedNYC8435,PC8435,CR8435,GE Sayre Repair Shop# 2, IRLX 1006, IRLX 1001,WCTR1001).
- Wilmington and Western Railroad114, built asLehigh Valley114, is preserved and operates tourist trains on the W&W.
- The Zanesville & Western Scenic Railroad8599, formerPRR5999, operations excursions on its scenic line inFultonham, Ohio.
- Dura-Bond(former owner ofTurtle 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
[edit]Notes
[edit]- ^abcdeSchafer, Mike (1998).Vintage diesel locomotives.Osceola, WI: Motorbooks International. pp. 22–25.ISBN0-7603-0507-2.OCLC38738930.
- ^Pinkepank, Jerry A (1973).The Second Diesel Spotter's Guide.Kalmbach Books. pp. 10, 26, 35.LCCN66-22894.
- ^Ross, David, ed. (2003).The Encyclopedia of Trains and Locomotives.Barnes & Noble. p. 264.ISBN978-0-7607-9679-5.
- ^Pinkepank, Jerry A (1973).The Second Diesel Spotter's Guide.Kalmbach Books. p. 35.LCCN66-22894.
- ^"Tulsa-Sapulpa Union Railway".American-Rails.com.RetrievedJune 24,2021.
- ^"SWITCH LOCOMOTIVE - govdeals.com".www.govdeals.com.Retrieved2021-07-10.
- ^"Pictures of BDTL 98".RR Picture Archives.Retrieved11 August2023.
- ^Franz, Justin (2024-04-04)."Boston & Maine SW1 Destined for Danbury".Railfan & Railroad Magazine.Retrieved2024-07-14.
- ^abcde"Rolling Stock of the Utah State Railroad Museum: Cargill 6751: SW1".Utah State Railroad Museum: Spencer S. Eccles Rail Center.Ogden, Utah: Union Station. 2016. Archived fromthe originalon 2017-01-27.Retrieved2017-01-27.
- ^Harwood, Herbert Hawley Jr. (2000).Rails to the Blue Ridge: The Washington and Old Dominion Railroad, 1847–1968(3rd ed.). Fairfax Station, Virginia:Northern Virginia Regional Park Authority.p. 137.ISBN0615114539.OCLC44685168– viaGoogle Books..
- ^"Home".montevideomrhc.org.
- ^"Museum Projects".www.lynnvillecoalmuseum.org.Retrieved2017-02-25.
- ^"Home".oerm.org.
References
[edit]- Dorin, Patrick C. (1972).Chicago and North Western Power.Burbank, California: Superior Publishing. p. 96.ISBN0-87564-715-4.
- Pinkepank, Jerry A. (1973).The Second Diesel Spotter's Guide.Milwaukee, Wisconsin:Kalmbach Publishing.ISBN978-0-89024-026-7.
- (July 2005), "Preservation Briefs",Trains Magazine,p. 71.
- TrainWeb.com.The Unofficial EMD homepage.Retrieved on January 7, 2005. Contains fairly complete builders' records for early EMD production.
- 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
[edit]Media related toEMD SW1 locomotivesat Wikimedia Commons