The

Union Pacific Railroad The Union Pacific Railroad is a Railroad classes, Class I freight-hauling railroad that operates 8,300 locomotives over routes in 23 U.S. states west of Chicago and New Orleans. Union Pacific is the second largest railroad in the United Stat ...

's M-10002 was a diesel-electric

streamliner A streamliner is a vehicle incorporating streamlining in a shape providing reduced air resistance. The term is applied to high-speed railway trainsets of the 1930s to 1950s, and to their successor " bullet trains". Less commonly, the term i ...

train A train (from Old French , from Latin">-4; we might wonder whether there's a point at which it's appropriate to talk of the beginnings of French, that is, when it wa ... , from Latin , "to pull, to draw") is a series of connected vehicles th ...

built in 1936 by

Pullman-Standard The Pullman Company, founded by George Pullman, was a manufacturer of railroad cars in the mid-to-late 19th century through the first half of the 20th century, during the boom of railroads in the United States. Through rapid late-19th century d ...

, with

prime mover Prime mover may refer to: Philosophy *Unmoved mover, a concept in Aristotle's writings Engineering * Prime mover (engine or motor), a machine that converts various other forms of energy (chemical, electrical, fluid pressure/flow, etc.) into ener ...

s from the Winton Engine division of General Motors Corporation and

General Electric General Electric Company (GE) was an American Multinational corporation, multinational Conglomerate (company), conglomerate founded in 1892, incorporated in the New York (state), state of New York and headquartered in Boston. Over the year ...

generator, control equipment and

traction motor A traction motor is an electric motor used for propulsion of a vehicle, such as locomotives, electric vehicle, electric or hydrogen vehicles, or electric multiple unit trains. Traction (engineering), Traction motors are used in electrically powe ...

s. It was the UP's third streamliner, and the last turret-cab streamliner. The original order was for two 1200 hp power cars, M-10002 and M-10003, of the same design as

M-10001 The Union Pacific Railroad's M-10001 was a Diesel-electric transmission, diesel-electric streamliner, streamlined train built in 1934 by Pullman-Standard with a power system developed by General Motors Corporation, General Motors Electro-Motive D ...

. 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 units, the new technology was used to increase the power of M-10002 by adding a booster unit with the 900 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 four more powerful locomotive sets built after M-10002. The cab unit was fitted with a V16 Winton 201-A

diesel engine The diesel engine, named after the German engineer Rudolf Diesel, is an internal combustion engine in which Combustion, ignition of diesel fuel is caused by the elevated temperature of the air in the cylinder due to Mechanics, mechanical Compr ...

and booster was equipped with a V12 Winton 201-A engine. The cab and booster units were articulated together with a span bolster, giving them an effective

wheel arrangement In rail transport, a wheel arrangement or wheel configuration is a system of classifying the way in which wheels are distributed under a locomotive. Several notations exist to describe the wheel assemblies of a locomotive by type, position, and c ...

of B-B+B-B, but they were not articulated with the train and therefore formed the Union Pacific's first separable

diesel locomotive A diesel locomotive is a type of railway locomotive in which the prime mover (locomotive), power source is a diesel engine. Several types of diesel locomotives have been developed, differing mainly in the means by which mechanical power is con ...

. The consist of nine passenger cars made it the longest streamliner trainset yet introduced. Eats_Distance_and_Hoards_Time

M-10002 entered service as the ''

City of Los Angeles Los Angeles, often referred to by its initials L.A., is the most populous city in the U.S. state of California, and the commercial, financial, and cultural center of Southern California. With an estimated 3,878,704 residents within the city ...

'' on May 15, 1936, the day after the

Santa Fe Railroad The Atchison, Topeka and Santa Fe Railway , often referred to as the Santa Fe or AT&SF, was one of the largest Class 1 railroads in the United States between 1859 and 1996. The Santa Fe was a pioneer in intermodal freight transport; at variou ...

introduced their first non-streamlined diesel-hauled, heavyweight ''

Super Chief The ''Super Chief'' was one of the List of named passenger trains, named train, passenger trains and the flagship of the Atchison, Topeka and Santa Fe Railway. The then-modern streamliner was touted in its heyday as "The Train of the Stars" b ...

'' on their competing

Chicago, Illinois Chicago is the List of municipalities in Illinois, most populous city in the U.S. state of Illinois and in the Midwestern United States. With a population of 2,746,388, as of the 2020 United States census, 2020 census, it is the List of Unite ...

Los Angeles, California Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U.S. state of California, and the commercial, Financial District, Los Angeles, financial, and Culture of Los Angeles, ...

route. After the introduction of a full-sized train powered by the new

EMC E2 The EMC E2 was an American passenger-train diesel locomotive which as a single unit developed , from two (2) prime movers. These locomotives were typically operated as a unit set ( A - B - B) or ( A - B - A); where the three unit lashup deve ...

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'' to replace the

. In July 1941, the train was replaced on that route with a train powered by an

EMC E3 The EMC E3 is a , A1A-A1A diesel-electric passenger locomotive that was manufactured by Electro-Motive Corporation of La Grange, Illinois as part of the E Series of EMC/EMD diesel passenger locomotives. The EMC demonstrator #822 was released ...

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 El Segundo ( , ; ) is a city in Los Angeles County, California, United States. Located on Santa Monica Bay, it was incorporated on January 18, 1917, and is part of the South Bay Cities Council of Governments. The population was 17,272 as of t ...

in December 1946, for experiments with coal-fueled

gas turbine A gas turbine or gas turbine engine is a type of Internal combustion engine#Continuous combustion, continuous flow internal combustion engine. The main parts common to all gas turbine engines form the power-producing part (known as the gas gene ...

locomotive power by a Northrop-

Hendy Hendy () is a village in the community of Llanedi in Carmarthenshire, Wales. It is situated at the Carmarthenshire and Swansea border, and lies on Afon Gwili, just across the River Loughor from Pontarddulais. Together with Fforest to the north ...

partnership; the project was abandoned and the locomotives were scrapped in December 1947. M-10002 remained the longest in Chicago-to-west-coast service among the original fleet of Union Pacific streamliners, just under five years.

Notes

References

* * Strack, Don. (2001)
Union Pacific Diesel Story, 1934-1982, Part I
'. Retrieved on December 25, 2004. * Kratville, William W., and Ranks, Harold E.,
The Union Pacific Streamliners
'' 1974t

External links

{{Pullman rolling stock North American streamliner trains Articulated passenger trains Union Pacific Railroad locomotives Diesel multiple units of the United States Diesel multiple units with locomotive-like power cars Scrapped locomotives Pullman Company Individual locomotives of the United States