Athearn Genesis G75857 HO Scale SD70ACu Progress Rail PRLX 7271 DCC Sound UniTrack - UnCoupler the Pennsy railroad developed a

the Pennsy railroad developed a new

Over 300 super-detailed parts

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a diesel prime mover spins a generator that produces electricity which powers electric traction motors on the axles

Athearn Genesis G75857 HO Scale SD70ACu Progress Rail PRLX 7271 DCC Sound UniTrack - UnCoupler the Pennsy railroad developed aAthearn Genesis G75857 HO Scale SD70ACu Progress Rail PRLX 7271 DCC Sound In September of 2014, Norfolk Southern purchased 100 ex Union Pacific SD90MAC locomotives from EMD Progress Rail to assist in the high volume traffic that NS was experiencing. As AC traction was being more accepted by the railroad, which previously had relied solely on DC power, the 90MACs fit the new direction of motive power for the railroad. Starting in 2016, NS began the