Athearn Genesis G82833 HO Scale EMD GP9 New York Central NYC 7517 DCC Sound Code 70 - Joiners improved acceleration and efficiency

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Author and expert Bernard Kempinski explains the industrial process and the massive complex built around steel production

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Athearn Genesis G82833 HO Scale EMD GP9 New York Central NYC 7517 DCC Sound Code 70 - Joiners improved acceleration and efficiencyAthearn Genesis G82833 HO Scale EMD GP9 New York Central NYC 7517 DCC Sound In 1949, EMD introduced the GP7. The basic design followed most diesel switchers with the addition of a short hood instead of an end cab. The hoods were also full height to better accommodate the diesel engine and mechanical and electrical components. In 1954 EMD upgraded the GP7 to become the 1,750 horsepower GP9. Externally, the first GP9s were virtually unchanged from the