Inside the Cheyenne, Wyoming, roundhouse on March 25, 2013, Union Pacific’s two E9As wait for another season of pulling passenger trains. Both were built in 1955, and in the early ’90s, UP sent them to VMV Enterprises in Paducah, Kentucky, to be remanufactured. They emerged in 1993 with a new 16-cylinder 2,000-hp EMD 645 engine (replacing original twin 12-cylinder 1,200-hp 567 engines), with AR10 alternators and GP38-2 design electrical systems.
