N Kato 176-1616 SD70M Union Pacific #1616. T his Kato EMD SD70M with flat radiators is based on units in service from coast to coast since the 1990s. It features flat rear radiators used on earlier-production units.
Introduced in 1992, EMD SD70M was a 4000 horsepower locomotive that ran on EMD’s new steerable truck design, known as the HTCR-II radial truck. This new truck allowed the locomotive to transfer its power to the rails more efficiently, which in turn enabled two SD70M locomotives to pull a train that would have taken 3 SD40-2’s to pull.