Enjoy this in depth look at the DDA40X. This locomotive is a engineering marvel, and I ended up going back to North Platte 5 more times for additional filming. In the end I had several hundred scenes which took a long time to edit. But I think it turned out pretty good and it's a rare look at nearly every aspect of the DDA40X.

These locomotives were built by the Electro Motive Division of General motors from 1969-1971. There was 47 locomotives produced. Eleven locomotives have survived and are in museums. One locomotive is operational (Union Pacific #6936 currently in overhaul), and another locomotive is used for spare parts. The DDA40X weighs 545,000 lb (247,000 kg), is 98 ft 5 in (30.00 m) long, and can produce 113,940 lbs of tractive effort. It has two 654E3 16 cylinder diesel engines, built by General Motors that produce 3,300 horsepower each.

These locomotives were some of the most successful, most loved, and most reliable locomotives Union Pacific ever owned. Union Pacific used these locomotives non stop racking up millions of miles over the years. In just 10 short years these locomotives were totally worn out from years of hard use.

This locomotive is open to the public during the Summer months including the cab. Check this website for information for hours of the Cody Railroad Park in North Platte, Nebraska https://visitnorthplatte.com/director...
More information can be found here about the history of this locomotive https://en.wikipedia.org/wiki/EMD_DDA40X
For a video on the removal of a engine power pack    • Video  
Many thanks to the kind people at the Cody Railroad Park who allowed me to film this locomotive. Any questions about this locomotive leave them in the comments and I will try to answer them.