Today's westbound Zephyr had a bit of a unique consist. A pair of Siemens SC-44s and a P42DC lead the Zephyr west at Leyden. Get used to these SC-44s because Amtrak has ordered 75 similar units (called ALC-42s) to start to replace their aging P42DC fleet. The P42DCs are over 20 years old now and many are falling in to a state of disrepair. The ALC-42s are currently being tested and are expected to start to show up and really take over for P42DCs in late 2021.
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