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EMC E3
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{{Short description|American diesel-passenger locomotive}} {{more citations needed|date=June 2021}} {{more footnotes needed|date=July 2016}} {{Infobox locomotive | name=EMC E3 | powertype=Diesel-electric | image=Atlantic Coast Line 501.jpg | caption=[[Atlantic Coast Line 501|ACL #501]] at the North Carolina Transportation Museum. On the down left is lettering ''[[Champion (train)|The Champion]]''. | builder=[[Electro-Motive Diesel|Electro-Motive Corporation]] (EMC) | buildmodel=E3 | builddate= September 1938 – June 1940 | totalproduction=17 [[A unit]]s, 2 [[B unit]]s | aarwheels=A1A-A1A | gauge={{track gauge|ussg}} | trucks = EMC [[Blomberg B|Blomberg]] A-1-A passenger | wheeldiameter = {{convert|36|in|mm|0|abbr=on}} | minimumcurve = 21° ({{convert|274.37|ft|m|2|abbr=on|disp=or}} radius) | wheelbase = {{convert|57|ft|1|in |m|2|abbr=on}} | length = {{convert|70|ft|4|in|m|2|abbr=on}} over [[Janney coupler|coupler]] [[Headstock (rolling stock)#Length over headstocks|pulling faces]] | width = {{convert|10|ft|7|in|m|2|abbr=on}} | height = {{convert|15|ft|10|in|m|2|abbr=on}} | locoweight = {{convert|308400|lb|abbr=on}} | fuelcap = {{convert|1200|USgal|impgal L|abbr=on}} | primemover= (2) [[Electro-Motive Diesel|EMC]] [[EMD 567|12-567C]] | rpmrange = 800 max | enginetype= (2) [[V12 engine|V12]] [[Two-stroke diesel engine|Two-stroke diesel]] | aspiration = [[Roots-type supercharger|Roots blower]] | displacement = {{convert|6804|cuin|L|abbr=on}} each | generator = (2) EMC D-4 | tractionmotors = (4) EMC D-7 | cylindercount=(2) 12 | poweroutput={{convert|2000|hp|sigfig=3|abbr=on|lk=in}} total | maxspeed={{convert|116|mph|kph|0|abbr=on|lk=in}} | tractiveeffort=''Starting:'' {{Convert|56500|lbf|kgf|0|abbr=on|lk=in}} @25% <br> ''Continuous:'' {{Convert|31000|lbf|kgf|0|abbr=on|lk=in}} @{{convert|11|mph|kph|0|abbr=on|lk=in}} | preservedunits=[[Atlantic Coast Line 501]] preserved at the [[North Carolina Transportation Museum]] | disposition = One preserved, remainder scrapped }} The '''EMC E3''' is a {{convert|2,000|hp}}, [[AAR wheel arrangement#A1A-A1A|A1A-A1A]] [[Diesel electric locomotive|diesel-electric passenger locomotive]] that was manufactured by [[Electro-Motive Diesel|Electro-Motive Corporation]] of [[La Grange, Illinois]] as part of the [[EMD E-unit|E Series of EMC/EMD diesel passenger locomotives]]. The EMC demonstrator #822 was released from La Grange for test on September 12, 1938. The [[A unit|cab]] version, or E3A, was manufactured from September 1938 to June 1940, and 17 were produced. The [[B unit|booster]] version, or E3B, was manufactured in March 1939 and September 1939, and 2 were produced. The {{convert|2,000|hp|abbr=on}} was achieved by putting two {{convert|1,000|hp}}, 12-cylinder, model 567 engines in the engine compartment. Each engine drove its own [[electrical generator]] to power the [[traction motor]]s. The E3 was the fourth model in a long line of passenger diesels of similar design known as [[EMD E-units]]. Compared with passenger locomotives made later by EMD, the noses of the E3, [[EMC E4|E4]], [[EMD E5|E5]], and [[EMD E6|E6]] cab units had pronounced slants when viewed from the side. Therefore, these four models have been nicknamed "slant nose" units. Later E models had the more vertical "bulldog nose" of the F series. E3 demonstrator 822 was built with a nose identical to earlier [[EMD EA|EA]] and [[EMD E1|E1A]] units, but later locomotives in the series featured an elevated headlamp mounted in a nacelle, distinct from the flush profile mounting of the earlier units. 822 was modified in a similar fashion prior to delivery to the [[Kansas City Southern Railway]]. ==Engine and powertrain== The E3 introduced a 12-cylinder version of the [[EMD 567|567 series Diesel engine]], with two being used for a total of 2,000 hp at 800 rpm. Earlier E-units had used two Winton 201A [[prime mover (locomotive)|prime mover]]s, but that engine was ill-suited to railroad use and was unreliable. The 567, which was specifically designed for railroad motive power applications, is a mechanically aspirated, two-stroke 45-degree V-type with {{convert|567|cuin|cm3 L}} displacement per cylinder, and remained in production until 1966. Two [[direct current]] generators, one per engine, provide power to four [[traction motor]]s, two on each truck, in an A1A-A1A arrangement. This truck design was used on all E-units and on MP 7100, CB&Q 9908, and Rock Island [[AB6]] power cars. EMC/EMD has built all of its major components since 1939.<ref name=pin73>Pinkpank 1973, pp. 13, 26, 90, 101, 106, 118, 121, 122.</ref><ref name=ros03>Ross 2003, pp. 261, 273.</ref> ==Original owners== ===A units=== {|class="wikitable" !Railroad !! Quantity !! Road numbers !! Notes |- |[[Electro-Motive Diesel|Electro-Motive Corporation]] (demonstrator) || align=center | 1 || 822 || to Kansas City Southern Railway #1 |- |[[Atlantic Coast Line Railroad]] || align=center | 2 || 500, 501 || 500 was wrecked in Fleming, GA in 1953 and rebuilt by EMD as an E8A. 501 was wrecked before delivery and rebuilt by EMC as an E6A. The 501 is preserved at the NCTM. |- |[[Atchison, Topeka and Santa Fe Railway]] || align=center | 1 || 11 || |- |[[Chicago and North Western Railway]] || align=center | 4 || 5001A, 5001B,<br>5002A, 5002B || Initially used in A-A back-to-back pairs on the ''[[Twin Cities 400]]''. |- |[[Chicago, Rock Island and Pacific Railroad]] || align=center | 2 || 625, 626 || |- |[[Florida East Coast Railroad]] || align=center | 2 || 1001, 1002 || |- |[[Kansas City Southern Railway]] || align=center | 2 || 2, 3 || |- |[[Missouri Pacific Railroad]] || align=center | 2 || 7000, 7001 || Built with two sets of double round portholes on each side. |- |[[Union Pacific Railroad]] || align=center | 1 || LA-5 || Built with two sets of triple round portholes, similar to the UP [[EMC E2]]; later modified and renumbered. |- ! Total !! 17 !! !! |} ===B units=== {|class="wikitable" !Railroad !! Quantity !! Road numbers !! Notes |- |[[Atchison, Topeka and Santa Fe Railway]] || align=center | 1 || 11A || |- |[[Union Pacific Railroad]] || align=center | 1 || LA-6 || matched with A-unit (see notes for UP LA-5) |- |} ==Surviving example== The only remaining E3 is ex-[[Atlantic Coast Line Railroad]] E3A [[Atlantic Coast Line 501|#501]]. It was formerly owned by the late Glen Monhart, and operated on excursions in [[Wisconsin]]. Today, it is owned by the North Carolina Dept. of Transportation Rail Division, and is on long-term loan to the [[North Carolina Transportation Museum]], in [[Spencer, North Carolina]]. It is stored in operating condition, and is run occasionally. In January 2013, NCDOT transferred ownership of the engine to the NC Department of Cultural Resources, Spencer Shops parent organization. == See also == {{portal|Trains}} *[[List of GM-EMD locomotives]] ==References== {{reflist}} ==Bibliography== {{refbegin}} * {{Dorin-North Western|page=128-129}} * {{Lamb-Evolution}} * {{Marre-diesel-50}} * {{Pinkepank diesel spotters guide 2 }} * {{cite book|editor-first=David|editor-last=Ross|title=The Encyclopedia of Trains and Locomotives|year=2003|publisher=Barnes and Noble|isbn=978-0-7607-9679-5}} * {{Schafer-Vintage Diesel}} * {{Solomon-American Diesel|pages=53–56, 63, 65, 67, 68, 70}} * {{Solomon-EMD Locomotives}} * {{Solomon-Vintage Diesel}} * {{Solomon-Electro-Motive}} * {{Solomon-North American Locomotives}} * {{Wilson-E Units}} {{refend}} ==External links== {{commons category|EMC E3 locomotives}} * [http://www.nctrans.org North Carolina Transportation Museum] {{EMD cab and cowl}} [[Category:Diesel–electric locomotives of the United States]] [[Category:A1A-A1A locomotives]] [[Category:Electro-Motive Division locomotives|E3]] [[Category:Passenger locomotives]] [[Category:Railway locomotives introduced in 1939]] [[Category:Locomotives with cabless variants]] [[Category:Standard-gauge locomotives of the United States]] [[Category:Streamlined diesel locomotives]]
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