Athearn Genesis G82722 HO Scale EMD GP9 Union Pacific UP 146 DC Era_2005 + At its introduction

At its introduction

as fast on run 20 as race 1

Most survived the BN-SLSF merger and continued to serve the BNSF for a time after

Worm and helical gear drive train for silent operation

Athearn Genesis G82722 HO Scale EMD GP9 Union Pacific UP 146 DC Era_2005 + At its introductionAthearn Genesis G82722 HO Scale EMD GP9 Union Pacific UP 146 DC 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 last GP7s.