Generations of Locomotive Technology Represented at Helper Yard on June 7th: GE's Dash 8 Series (C40-8), GE's GEVO "Evolution" Series (ES44AC), and EMD's venerable "Dash Two" (SD40-2). The 9209 arrived on the MRONY-06, 7805 was assigned to the swing helper, and the 3538 to the LDP45 "Dirt Train" local.