Monday, May 01, 2006
Santa Fe Corwith Yard hump switching. April 1984.
We are on the railroad embankment at 47th Street and Archer Avenue on Chicago's southwest side. An old rebuilt Santa Fe EMD GP-7 Diesel roadswitcher, is seen coupled to a "Slug Unit", working the south hump at the Santa Fe railroads Corwith Yard. Slug Units actually dont have an "Engine" or "Prime Mover" of their own. They are a Locomotive chasis with working traction motors in the trucks. Everything above the frame is Concrete and Steel for weight and traction. While not fast, they do have the much needed torque for heavy slow speed movements. Extra muscle indeed.