Editing EMD E6 (section)

{{Short description|American diesel-passenger locomotive}}
{{no footnotes|date=July 2016}}
{{Infobox locomotive
| name = EMC E6
| powertype = Diesel-electric
| image = Rock Island locomotive 630.jpg
| caption = [[Chicago, Rock Island and Pacific Railroad|Rock Island]] E6A #630, operated by [[Midland Railway (Kansas)|Midland Railway]], at [[Baldwin City, Kansas]] on November 28, 2004
| builder = [[Electro-Motive Corporation General Motors Electro-Motive Corporation ]] (EMC)
| buildmodel = E6
| builddate = November 1939 – September 1942
| totalproduction = 91 [[A unit]]s, 26 [[B unit]]s
| aarwheels = A1A-A1A
| gauge = {{track gauge|ussg}}
| trucks = EMD [[Blomberg B|Blomberg]] A-1-A passenger
| wheeldiameter = {{convert|36|in|mm|0|abbr=on}}
| minimumcurve = 23° ({{convert|250.79|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|14|ft|10|in |m|2|abbr=on}}
| locoweight = ''A unit:'' {{convert|311300|lb|kg|0|abbr=on}} <br>
              ''B unit:'' {{convert|290000|lb|kg|0|abbr=on}}
| fuelcap = 
| primemover = (2) [[Electro-Motive Diesel|EMD]] [[EMD 567|12-567]]
| rpmrange = 800
| enginetype = [[V12 engine|V12]] [[Two-stroke diesel engine|Two-stroke diesel]]
| aspiration = [[Roots-type supercharger]]
| displacement = {{convert|6804|cuin|L|abbr=on}} each
| generator = (2) EMD D-4
| tractionmotors = (4) EMD D-7
| cylindercount = (2) 12
| poweroutput = {{convert|2000|hp|abbr=on|lk=in}} total
| maxspeed = {{convert|116|mph|kph|0|abbr=on|lk=in}}
| tractiveeffort = ''Starting:'' {{convert|56500|lbf|N|0|abbr=on|lk=in}} @25% <br>
                 ''Continuous:'' {{convert|31000|lbf|N|0|abbr=on|lk=in}} @{{convert|11|mph|kph|0|abbr=on|lk=in}}
| disposition = Three preserved, remainder scrapped
}}

The '''EMC E6''' was a {{convert|2000|hp|adj=on}}, [[AAR wheel arrangement#A1A-A1A|A1A-A1A]], [[streamliner|streamlined]] passenger train [[locomotive]] manufactured by [[Electro-Motive Diesel|Electro-Motive Corporation]], and its corporate successor, [[General Motors Corporation|General Motors]] Electro-Motive Division, of [[La Grange, Illinois]]. The [[A unit|cab]] version, E6A, was manufactured from November 1939 to September 1942; 91 were produced. The [[B unit|booster]] version, E6B, was manufactured from April 1940 to February 1942; 26 were produced. The {{convert|2000|hp|adj=on}} was achieved by putting two {{convert|1000|hp|adj=on}}, 12-cylinder, model 567 engines in the engine compartment. Each engine drove its own [[electrical generator]] to power the [[traction motor]]s. The E6 was the seventh 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 [[EMC E3|E3]], [[EMC E4|E4]], [[EMD E5|E5]], and 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 "bulldog nose" of the F series.

One interesting E6 variant custom-produced for the Missouri Pacific was the model [[EMC AA]].  This was a motorcar-style unit which had only one prime mover and {{convert|1000|hp}}, and substituted a baggage compartment where the other diesel V-12 would have been.  The [[Chicago, Rock Island and Pacific]] owned an equally interesting pair of similar power cars known as the [[EMC AB6]], which were mechanically identical but had boxcabs in blunt noses.  These acted as boosters behind conventional E6A models on the ''[[Rocky Mountain Rocket]]'' train between Chicago and Limon, Colorado, from where the E6A would take the Denver cars north and the AB6 would take the Colorado Springs section of the train south.