Diesel disruptor

Diesel disruptor

By Brian Schmidt | June 14, 2021

| Last updated on August 7, 2025


Four high-nose diesel locomotive with freight train in mountains

Diesel disruptor

Four U25B demonstrators climb upgrade on the Northern Pacific near Blossburg, Mont., in 1961. The U25B brought GE into the heavy diesel market, and within a few years the company had eclipsed Alco for the No. 2 spot among locomotive builders. General Electric photo

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