Union Pacific M-10001

The Union Pacific Railroad's M-10001 was a diesel-electric streamlined train built in 1934 by Pullman-Standard with a power system developed by General Motors Electro-Motive Corporation using a Winton 201A Diesel engine and General Electric generator, control equipment and traction motors. It was the UP's second streamliner after the M-10000, their first equipped with a diesel engine and was a longer train (six cars) than its three-car predecessor. All cars were articulated—trucks were shared between each car. It was delivered on October 2, 1934, and was used for display, test and record-setting runs for the next two months before being returned to Pullman-Standard for an increase in power and capacity, following which it was placed into service as the City of Portland train. It has been nicknamed "The Banana".

== Record-setting run == In October 1934 the M-10001, known as the "Canary Bolt" and still with its original engine, set an as-yet unbroken record of 57 hours from coast to coast of the United States, leaving Los Angeles at 10 PM on the 22nd and arriving Grand Central Terminal at 9:55 AM on the 25th. When placed in service as the City of Portland the train reduced the Chicago, Illinois to Portland, Oregon schedule from 58 hours to 40 hours without any upgrades to track or other facilities.