Before acquiring 3000 horsepower SD40-3 units NSM tested a few different models. Here three borrowed GEs move empties back to the mine during a test.

Before ordering rebuilt SD40s for its mainline trains, NSM tested GEs from LRC and DM&IR SD40-3s. Here a trio of leased GEs with an SF30C leading work westbound empties on a warm Halloween aftern... (more)