Lite power backing west one Trk1. NS 7304, 7309 are X-UP SD9043MAC's that never got their 6000 HP prime movers from EMD as intended (experimental 4 cycle engine was not successful) so remained in service with the 4300 HP 710 engines.

Photographed by Bruce Nelson, April 29, 2016.
Added to the photo archive by Bruce Nelson, July 5, 2023.
Railroad: Norfolk Southern.

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