View source for M-10000

{{short description|Streamlined petrol-electric trainset}}
{{Infobox train
| background       = 
| name             = M-10000
| image            = Union Pacific M10000 at Pullman 1934.jpg
| caption          = M-10000
| imagesize        = 300px
| interiorimage    = M-10000 observation car.jpg
| interiorimagealt = 300px
| interiorcaption  = 
| service          = 
| manufacturer     = 
| designer         = [[Electro-Motive Corporation]]
| assembly         =
| ordernumber      = 
| factory          = 
| family           = 
| replaced         = 
| yearconstruction = 1934
| yearservice      = 1934–1941
| refurbishment    = 
| yearscrapped     = 1942
| numberconstruction= 
| numberbuilt      = 1 trainset (3 cars)
| numberservice    = 
| numberpreserved  = 
| numberscrapped   = 1 trainset
| predecessor      =
| successor        = [[M-10001]]
| formation        = 1 power cab car (with mail and baggage rooms),
1 trailer car (passenger), 
1 trailer tail car (passenger)
| diagram          = 
| code             = 
| fleetnumbers     = 
| capacity         = 108 (middle car 56 seat coach, end car 52 seat buffet-coach <ref>{{cite web | url=https://utahrails.net/pass/streamliner-1st-train.php | title=UP Streamliner 1st Train }}</ref>
| operator         = [[Union Pacific Railroad]]
| depots           = 
| lines            = 

| carbody          = aluminum
| trainlength      = {{convert|204|ft|5|in|mm}}
| carlength        = {{convert|71|ft|9|in|mm}} (power car)<br />{{convert|58|ft|0|in|mm}} (intermediate car)<br />{{convert|71|ft|0 |in|mm}} (tail car)
| width            = {{convert|9|ft|3|in|mm}}
| height           = {{convert|11|ft|11.5|in|m}}
| lowfloor         =
| floorheight      = 
| platformheight   = 
| entrylevelorstep = 
| doors            = 
| art-sections     = 
| wheeldiameter    = 
| wheelbase        = 
| weight           = {{convert|85|t}}
| axleload         =   
| steep gradient   =
| traction         = [[Petrol–electric transmission|Gasoline–electric]]
| engine           = Winton 191A
| enginetype       = Two-stroke gasoline
| cylindercount    = 45° [[V12 engine|V12]]
| cylindersize     = {{convert|191|in3|cm3}}
| traction motors  = 2
| maxspeed         = 110 mph (177km/h)
| poweroutput      = {{convert|600|hp|0|abbr=on|lk=in}}
| tractiveeffort   = 
| transmission     = DC-DC
| acceleration     = 
| deceleration     = 
| aux              = 
| powersupply      = 
| hvac             = 
| electricsystem   = 
| collectionmethod = 
| uicclass         = 
| aarwheels        = B-(2+2)-2
| wheels driven    = 2
| bogies           = 1 motor bogie,
2 non-motor [[Jacobs bogie]]s,
1 non-motor bogie
| minimum curve    =
| brakes           = 
| safety           = 
| coupling         = 
| multipleworking  = no
| light            =
| gauge            = {{track gauge|sg}}
| notes            =
| box_width        =
| label_width      =
| seating          = [[open coach]], 2+2
| stocktype        = Gasoline-electric passenger one-directional trainset
}}

The '''M-10000''' was an early American [[streamliner|streamlined]] passenger trainset that operated for the [[Union Pacific Railroad]] from 1934 until 1941.  It was the first streamlined passenger train to be delivered in the United States, and the second to enter regular service after the ''[[Pioneer Zephyr]]'' of the [[Chicago, Burlington and Quincy Railroad]].<ref name="w44"/>

==Development==
[[File:UP M-10000a.jpg|thumb|225px|left|The front view of the M-10000]]
The M-10000 car design built upon the efforts of [[William Bushnell Stout]], an early designer of all-metal airplanes, who adapted fuselage design ideas to the ''Railplane'' (not to be confused with the ''[[Railplane|Bennie Railplane]]''), a lightweight self-propelled railcar built by [[Pullman-Standard]] in 1932.  The tapered car cross-section, lightweight tubular aluminum [[space frame]] construction, and [[Duralumin]] skin of the ''Railplane'' were carried over into the M-10000 design.<ref>{{cite book|author= Solomon, Brian (2015)|title= Streamliners: Locomotives and Trains in the Age of Speed and Style, p. 32-37|date= 5 October 2015|publisher= Voyageur Press|isbn= 978-0760347478}}</ref>  The performance of the ''Railplane'' in testing drew the attention of Union Pacific, who sought the services of Pullman-Standard in building a small, lightweight streamlined trainset for mainline service.   Union Pacific ordered M-10000 from Pullman in May 1933 at a cost of $230,997, following an analysis of passenger traffic that concluded new, more cost effective equipment than heavyweight passenger cars and steam locomotives was required for maintaining profitability, especially on low-traffic routes.<ref name="w44">Wegman, p. 44-45</ref><ref name="sun"/>  The streamlined body was developed from a series of [[wind tunnel]] tests that were carried out at the [[University of Michigan]].<ref name="w48"/>     

The [[Electro-Motive Corporation]] (EMC) developed the internal combustion-electric propulsion system powered by a 600 hp spark-ignition engine.  As was their practice as a system engineering firm at the time, they contracted manufacture of the components of their systems to primary equipment manufacturers.  [[General Motors Corporation|General Motors]]' Cleveland subsidiary, the [[Cleveland Diesel Engine Division#History| Winton Engine Corporation]], provided the prime mover.  The air brake compressor, main generator, traction motors and control equipment were manufactured by the [[General Electric]] Company.  Skepticism that development efforts for [[Diesel motors|diesel engines]] underway in the early 1930s would provide timely release of an engine adequate for high speed rail service led to  use of a spark-ignition distillate engine.<ref name="w44"/>  [[Jacobs bogie|Trucks]] were strongly influenced by German passenger bogie design, as investigated by Union Pacific chief engineer A.H. Fetters.

==Design==
[[File:UP M-10000b.jpg|thumb|225px|left|The rear view of the M-10000]]
The M-10000 was a three-car trainset, with a combined power/baggage/[[railway post office]] car and two trailing passenger coaches.<ref name="w48">Wegman, p.48-49</ref>  The power car measured {{convert|71|ft|9|in|m}} long, followed by coaches measuring {{convert|58|ft|m}} and {{convert|71|ft|m}}.<ref name="w48"/>  Including the space between cars, the trainset had a total length of {{convert|204|ft|5|in|m}}, with a width of {{convert|9|ft|3|in|m}} and a height of {{convert|11|ft|11.5|in|m}} at the cab; the coaches were {{convert|1|ft|m}} shorter.<ref name="w48"/>  The trainset was articulated using shared [[Jacobs bogie|Jacobs bogies]] to reduce weight, making the train operate as one integrated unit rather than as a separable locomotive and cars. 
The integrated-body-and-frame construction using aluminum reduced the required structural weight to a fraction of that for conventional body-on-frame railcars, and the trainset's total weight of {{convert|85|t|kg}} was about the same as a single passenger coach of the time.<Ref name="w48"/>

The power car featured an elevated "turret cab" behind a nose featuring a large vertically-divided air intake grille formed by parabolic arches. On the roof of the cab were a headlamp and a vertical marker light.  The train was powered by a single {{convert|600|hp|kW}} spark-ignited distillate-burning engine built by the General Motors subsidiary [[Cleveland Diesel Engine Division#History|Winton Engine Corporation]] driving a generator that powered two [[traction motor]]s on the leading [[bogie|truck]] of the power car.<ref name="sun">{{cite web | url=https://www.baltimoresun.com/news/bs-xpm-2009-03-08-0903060132-story.html | title=Radical high-speed trains briefly brightened the Depression | work=The Baltimore Sun | date=March 8, 2009 | access-date=December 27, 2018}}</ref>  The two passenger coaches each had a capacity of 60 people; the last coach also included a small galley at the rear end to prepare meals that were served at passengers' seats.<ref name="w48"/>  Original livery consisted of Armour Yellow sides with a Leaf Brown nose, roof, rear, and lower panels, with red striping separating the two main colors.  The nose was subsequently painted Armour Yellow consistent with other early Union Pacific streamliners.

==Service history==
[[File:Union Pacific City of Salina.JPG|thumb|left|A postcard photo of the M-10000 as the ''City of Salina'']]
The trainset was delivered on February 12, 1934, and was sent on a publicity tour across the US, during which about a million people toured it and its stops became local media sensations.<ref name="w44"/>  During its {{convert|13000|mi|km|sing=on}} exhibition tour across the US as ''The Streamliner'', where it hit a top speed of 110 mph (177 km/h) during its journey, it visited Washington DC for inspection by [[Franklin Delano Roosevelt]].<ref name="sun"/><ref>{{cite web| url-status = live| archive-url = https://ghostarchive.org/varchive/youtube/20211205/Y2dIGDW85Cs| archive-date = 2021-12-05| url = https://www.youtube.com/watch?v=Y2dIGDW85Cs| title = Union Pacific Streamliners M-10000 and M-10001 in 1934 | website=[[YouTube]]| date = 3 January 2018}}{{cbignore}}</ref> The popular train was put on display at the 1934 World's Fair ("[[A Century of Progress]]") in Chicago from May 26 to October 31, 1934.  It was somewhat overshadowed by the other lightweight streamliner, the diesel-powered ''Burlington Zephyr'', which entered the fair after a record-setting "Dawn to Dusk Dash" speed run from Denver to Chicago, in time to arrive at the "Wings of a Century" transportation pageant. During its testing, demonstration, and display periods, the M-10000 trainset included the sleeper car ''Overland Trail,'' which was removed from the consist prior to revenue service and added to Union Pacific's next streamliner, [[M-10001]].

M-10000 was placed in revenue service between [[Kansas City, Missouri|Kansas City]], Missouri and [[Salina, Kansas|Salina]], Kansas as ''The Streamliner'' on January 31, 1935. It was subsequently named ''City of Salina'' as Union Pacific adopted the ''"City of..."'' convention for its new streamliners, but was also nicknamed the "Tin Worm" or "Little Zip".<Ref name="w44"/>  It operated until December 1941, by which time its engine, after powering the train for approximately 995,000 miles, required replacement that was deemed prohibitively expensive.<Ref name="w44"/>  The trainset was scrapped the following year, with its aluminum recycled for use in the wartime aircraft industry.<Ref name="w44"/>

==Legacy==
Union Pacific commissioned five diesel-powered streamliners during 1934–1936, evolved from the M-10000 design. The color scheme originated with M-10000 was used for UP's later streamliners and changed incrementally to the Armour Yellow and Harbor Mist Gray livery that became UP's standard.  The "Streamliner" name for M-10000 became the general term for locomotives and passenger trains styled with clean lines and an aerodynamic look.  The high-mounted, behind-the-nose cab design originated with M-10000 was later adopted for EMD's [[EMD E-unit|E-unit]] and [[EMD F-unit|F-unit]] locomotives, although without the front-mounted air intake.  Integrated-body-and-frame, or [[Carbody unit|carbody]], designs became standard for rail equipment where weight was a concern, such as early mainline diesel locomotives, passenger cars, urban mass transit rail, and high-speed passenger rail.

== In popular culture ==

In the 1937 children's book "Choo Choo: The Story of an Engine Who Ran Away" by [[Virginia Lee Burton]], an M-10000 is cast as the streamliner train that helps Choo Choo's crew pursue the title engine after she runs away.  Once Choo Choo is found on an old unused track, her engineer, Jim, uses a chain to help the streamliner tow Choo Choo back to the big city as the M-10000 lacks couplers.

==References==
===Footnotes===
{{reflist}}

===Bibliography===
*{{cite book | url=https://cloud.mail.ru/public/B25K/1AvrNHTkT | title=American Passenger Trains and Locomotives Illustrated | publisher=Voyageur Press | author=Wegman, Mark | year=2008 | location=Minneapolis, MN | isbn=978-0-7603-3475-1}}

==External links==
{{commonscat}}
* [https://books.google.com/books?id=EeIDAAAAMBAJ&dq=Popular+Science+1933+plane+%22Popular+Mechanics%22&pg=PA331 "The Iron Horse Goes Modern"] ''Popular Mechanics'', September 1933 -- detailed article on Union Pacific engineering research that lead to the M-10000
* [https://books.google.com/books?id=xd0DAAAAMBAJ&dq=Popular+Science+1935+plane+%22Popular+Mechanics%22&pg=PA718 "Tuning Up A Streamliner" ''Popular Mechanics'', November 1935] pp. 718-719 improvements resulting in the M-10001
* {{citation |chapter-url=http://www.railwaywondersoftheworld.com/up-express.html| chapter = The Union Pacific Streamlined Express| title = Railway Wonders of the World| year=1936 | pages=33–39 |editor-first=Clarence | editor-last=Winchester }}, contemporary description of the train

{{Lightweight Trains}}
{{UP Passenger}}
{{EMD misc}}
{{Pullman rolling stock}}

[[Category:North American streamliner trains]]
[[Category:Diesel multiple units of the United States]]
[[Category:Articulated passenger trains]]
[[Category:Union Pacific Railroad locomotives]]
[[Category:Scrapped locomotives]]
[[Category:Individual locomotives of the United States]]