The Union Pacific Railroad

Union Pacific Railroad

The Union Pacific Railroad , headquartered in Omaha, Nebraska, is the largest railroad network in the United States. James R. Young is president, CEO and Chairman....

's M-10002 was a diesel-electric streamliner

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 is applied to fully faired recumbent bicycles...

 train

Train

A train is a connected series of vehicles for rail transport that move along a track to transport cargo or passengers from one place to another place. The track usually consists of two rails, but might also be a monorail or maglev guideway.Propulsion for the train is provided by a separate...

 built in 1936 by Pullman-Standard with a prime mover from the Winton engine division of General Motors Corporation and General Electric

General Electric

General Electric Company , or GE, is an American multinational conglomerate corporation incorporated in Schenectady, New York and headquartered in Fairfield, Connecticut, United States...

 generator

Electrical generator

In electricity generation, an electric generator is a device that converts mechanical energy to electrical energy. A generator forces electric charge to flow through an external electrical circuit. It is analogous to a water pump, which causes water to flow...

, control equipment and traction motor

Traction motor

Traction motor refers to an electric motor providing the primary rotational torque of a machine, usually for conversion into linear motion ....

s. It was the UP's third streamliner, and the last turret-cab streamliner.

It had two power cars, the lead, cab-equipped one fitted with a 1200 hp V16

V16 engine

A V16 engine is a V engine with 16 cylinders. Engines of this number of cylinders are uncommon in automotive use.A V16 engine is perfectly balanced regardless of the V angle without requiring counter-rotating balancing shafts which are necessary to balance Straight-4 and odd number of cylinder...

 Winton 201-A diesel engine

Diesel engine

A diesel engine is an internal combustion engine that uses the heat of compression to initiate ignition to burn the fuel, which is injected into the combustion chamber...

 and the second equipped with a 900 hp V12

V12 engine

A V12 engine is a V engine with 12 cylinders mounted on the crankcase in two banks of six cylinders, usually but not always at a 60° angle to each other, with all 12 pistons driving a common crankshaft....

 Winton 201-A that had been removed from the M-10001

M-10001

The Union Pacific Railroad's M-10001 was a record breaking diesel-electric streamliner train built in late 1934 by Pullman-Standard with an engine from General Motors Electro-Motive Corporation and General Electric generator, control equipment and traction motors...

 when it was rebuilt. The two power cars were articulated together with a span bolster

Span bolster

A span bolster, in rail terminology, is a beam or frame used to link two trucks or bogies so that they can be articulated together and be joined to the locomotive or railroad car at one rotating mounting point...

, giving them an effective wheel arrangement

Wheel arrangement

In rail transport, a wheel arrangement is a system of classifying the way in which wheels are distributed beneath a locomotive.. Several notations exist to describe the wheel assemblies of a locomotive by type, position, and connections, with the adopted notations varying by country...

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

Diesel locomotive

A diesel locomotive is a type of railroad locomotive in which the prime mover is a diesel engine, a reciprocating engine operating on the Diesel cycle as invented by Dr. Rudolf Diesel...

.

The train was of nine passenger cars plus the two power cars, making it at eleven cars the longest streamliner trainset yet introduced.

It entered service as the City of Los Angeles

City of Los Angeles

The City of Los Angeles was a streamlined passenger train that ran between Chicago, Illinois, and Los Angeles, California, via Omaha, Nebraska, and Ogden, Utah. Between Omaha and Los Angeles it ran on the Union Pacific Railroad; east of Omaha it ran on the Chicago and North Western Railway until...

on May 15, 1936, the day after the Santa Fe

Atchison, Topeka and Santa Fe Railway

The Atchison, Topeka and Santa Fe Railway , often abbreviated as Santa Fe, was one of the larger railroads in the United States. The company was first chartered in February 1859...

 introduced their first non-streamlined diesel-hauled, heavyweight Super Chief

Super Chief

The Super Chief was one of the named passenger trains and the flagship of the Atchison, Topeka and Santa Fe Railway. It was often referred to as "The Train of the Stars" because of the many celebrities who traveled on the streamliner between Chicago, Illinois and Los Angeles, California.The Super...

on their competing Chicago, Illinois to Los Angeles, California

Los Angeles, California

Los Angeles , with a population at the 2010 United States Census of 3,792,621, is the most populous city in California, USA and the second most populous in the United States, after New York City. It has an area of , and is located in Southern California...

 route.

After the introduction of the new EMC E2 locomotives for the City of Los Angeles in December 1937, the train was reassigned to the City of Portland

City of Portland

The City of Portland was a named passenger train operated by the Union Pacific Railroad and Chicago and North Western Railway between Chicago, Illinois, and Portland, Oregon. It started in June 1935, using the refurbished M-10001 streamliner trainset; with only one set of equipment the train left...

to replace the M-10001. In July 1941, the trainset was placed in storage after it was replaced on that route also. It was reactivated in April 1942 to operate a Portland-Seattle connection. It was withdrawn for the second and final time in May 1943, when the passenger cars were removed. The power cars were eventually sold to Northrup-Hendy for gas turbine

Gas turbine

A gas turbine, also called a combustion turbine, is a type of internal combustion engine. It has an upstream rotating compressor coupled to a downstream turbine, and a combustion chamber in-between....

train testing in December 1946; they went for scrap in 1947.