Take the throttle of one of the biggest and most distinctive diesel locomotives ever to serve on America’s railroads – with the Union Pacific General Electric U50 As General Electric’s answer to Union Pacific’s call for diesel super power in the early 1960s, the U50 was massive and memorable. Stretching more than 83-feet long, standing over 16-feet tall, weighing more than half-a-million pounds, and riding on eight powered axles in a bolstered B+B-B+B wheel arrangement, the U50 was, for all intents and purposes, two of General Electric’s landmark U25Bs rolled into one locomotive. Among the features of the U50s was that the units rode on reconditioned truck and bolster assemblies from UP's retired 4500-horsepower “GTEL” gas-turbine locomotives. Union Pacific purchased a total of 23 U50s.The big diesels worked over much of UP’s main lines and were often found leading tonnage across the plains of Nebraska and Kansas and toting freight over famed Sherman Hill. The Union Pacific retired the last of its U50s in 1977
Excellent Idea MrSouthernDriver but you have a problem finding a sound source for U50 locomotives due to them being scrapped in the 1960s-1970s