EMD SD70ACe - Union Pacific "The Spirit" 1943 (DC,DCC & Sound)

The SD70ACe, built in the United States between 2004 and 2014, was introduced as the successor to the SD70MAC. Designed to meet EPA Tier 2 emissions regulations, the model later evolved in 2012 to comply with Tier 3 standards. Powered by EMD’s 16-710-G3C-T2 prime mover, the SD70ACe produces 4,300 horsepower, with later Tier 3 versions boosted to 4,500 horsepower. These locomotives deliver 157,000 lbf of continuous tractive effort and 191,000 lbf at starting, with braking effort rated at 106,000 lbf.

While mechanically similar to earlier SD70 models, the SD70ACe features a redesigned underframe and new sheet metal construction. Its electrical cables and air lines are routed beneath the walkways on opposite sides, improving maintenance access. The design continues trends from the SD80 and SD90 series, including a wide radiator nearly matching the cab’s width, a lowered center hood section, and dynamic brakes relocated to the rear. The cab itself was derived from late-model SD90MAC-H units, featuring rectangular window glass and a distinct external appearance compared to earlier SD70M and SD70MAC cabs. In 2008, EMD standardized the isolated cab design for new SD70ACes after non-isolated versions were restricted from leading BNSF trains due to excessive vibration.

Industry-Leading Model Features:

• Paragon4 Sound & Control System featuring Rolling Thunder
• Integral Dual-Mode Decoder with Back EMF for Superb Slow Speed Operation in DC and DCC
• Precision Drive Mechanism Engineered for Heavy Towing and Smooth Slow Speed Operation
• All Wheel Electrical Pick-up
• ABS Body with Die Cast Chassis for Maximum Tractive Effort
• Premium Caliber Painting
• Prototypically Accurate Paint Schemes and Road Numbers
• Many Separately Applied Details such as Handrails, Grab Irons, Bell, and Others
• Prototypical Light Operation
• Prototypically Accurate Sounds for the EMD SD70ACe Diesel Locomotive
• Microtrains-compatible Couplers (2)
• Will operate on Code 55, Code 70, and Code 80 Rail
• Minimum Operating Radius:  9 inches