View source for M-10002

{{short description|Streamlined diesel trainset}}
[[Image:M-10002 1.jpg|thumb|250px|The M-10002 at [[Cheyenne, Wyoming]], March 7, 1937. The train's regular second locomotive unit is replaced by a unit from the [[M-10003 to M-10006|M-10003 through M-10006 series]]. Note how it is higher and of a different profile.]]

The [[Union Pacific Railroad]]'s '''M-10002''' was a [[Diesel-electric transmission|diesel-electric]] [[streamliner]] [[train]] built in 1936 by [[Pullman-Standard]], with [[prime mover (locomotive)|prime mover]]s from the Winton Engine division of General Motors Corporation and [[General Electric]] [[Electrical generator|generator]], control equipment and [[traction motor]]s. It was the UP's third streamliner, and the last turret-cab streamliner.

The original order was for two 1200&nbsp;hp power cars, M-10002 and M-10003, of the same design as [[M-10001]].  However, the demands of Chicago-to-west-coast service led UP to expand the consists from six to nine cars and seek more power for the larger trainsets.  Following the demonstration of multiple unit control systems with the [[EMC 1800 hp B-B|EMC 1800 hp B-B units]], the new technology was used to increase the power of M-10002 by adding a booster unit with the 900&nbsp;hp engine that had been removed from M-10001 when it was rebuilt prior to entering regular service.  The order for M-10003 was cancelled and the order number was used for one of the [[M-10003 to M-10006|four more powerful locomotive sets]] built after M-10002.

The cab unit was fitted with a {{convert|1200|hp|abbr=on}} [[V16 engine|V16]] Winton 201-A [[diesel engine]] and booster was equipped with a {{convert|900|hp|abbr=on}} [[V12 engine|V12]] Winton 201-A engine. The cab and booster units were articulated together with a [[span bolster]], giving them an effective [[wheel arrangement]] of [[AAR wheel arrangement#B-B.2BB-B|B-B+B-B]], but they were not articulated with the train and therefore formed the Union Pacific's first separable [[diesel locomotive]].  The consist of nine passenger cars made it the longest streamliner trainset yet introduced.
[[File:Eats_Distance_and_Hoards_Time.jpg|thumb|"''[[City of Los Angeles (train)|THE CITY OF LOS ANGELES]]'', new streamlined speed-burner of the Union Pacific Railroad," [[Illustrated Daily News|''Los Angeles Illustrated Daily News'']], May 7, 1936]]
M-10002 entered service as the ''[[City of Los Angeles (train)|City of Los Angeles]]'' on May 15, 1936, the day after the [[Atchison, Topeka and Santa Fe Railway|Santa Fe Railroad]] introduced their first non-streamlined diesel-hauled, heavyweight ''[[Super Chief]]'' on their competing [[Chicago, Illinois]] to [[Los Angeles, California]] route.  After the introduction of a full-sized train powered by the new [[EMC E2]] locomotive as the ''City of Los Angeles'' in December 1937, the train was withdrawn from service for approximately three months then reassigned to the ''[[City of Portland (train)|City of Portland]]'' to replace the [[M-10001]]. In July 1941, the train was replaced on that route with a train powered by an [[EMC E3]] locomotive set and placed in storage.  The train was reactivated in April 1942 to operate on a Portland-Seattle connection, then withdrawn for the third and final time in May 1943 and the passenger cars removed. The locomotive units were moved to [[El Segundo, California]] in December 1946, for experiments with coal-fueled [[gas turbine]] locomotive power by a [[Northrop Grumman|Northrop]]-[[Joshua Hendy Iron Works|Hendy]] partnership; the project was abandoned and the locomotives were scrapped in December 1947.<ref>{{cite web|last=Strack|first=Don|date=April 22, 2014|url=https://www.trainorders.com/discussion/read.php?11,3387866|title=The Experiment That Died, UP 10002|work=Nostalgia & History|publisher=Trainorders.com|access-date=May 3, 2021|archive-url=https://web.archive.org/web/20210503160744/https://www.trainorders.com/discussion/read.php?11,3387866|archive-date=May 3, 2021|url-status=live}}</ref>

M-10002 remained the longest in Chicago-to-west-coast service among the original fleet of Union Pacific streamliners, just under five years.

==Notes==
{{reflist}}

== References ==
* {{cite book|author=Pinkepank, Jerry A.|title=The Second Diesel Spotter's Guide|publisher=Kalmbach Publishing Co., Milwaukee, WI|year=1973|isbn=0-89024-026-4}}
* Strack, Don. (2001) ''[http://utahrails.net/up/up-diesel-story-1934-1982-a.php Union Pacific Diesel Story, 1934-1982, Part I]''. Retrieved on December 25, 2004.
* Kratville, William W., and Ranks, Harold E., ''[https://www.amazon.com/Union-Pacific-streamliners-William-Kratville/dp/B0006CL6QY/ref=cm_cr_arp_d_product_top?ie=UTF8 The Union Pacific Streamliners],'' 1974t
==External links==
{{commons category-inline|M-10002}}

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

[[Category:North American streamliner trains]]
[[Category:Articulated passenger trains]]
[[Category:Union Pacific Railroad locomotives]]
[[Category:Diesel multiple units of the United States]]
[[Category:Diesel multiple units with locomotive-like power cars]]
[[Category:Scrapped locomotives]]
[[Category:Pullman Company]]
[[Category:Individual locomotives of the United States]]