In 1992, GM's Electro-Motive Division (EMD) introduced its new SD70 series of third-generation, computerized diesels. The standard DC-motored version was the SD70M, while the SD70MAC offered AC traction motors - a technology that would later become the new standard for mainline diesels. One glance at the design of the new SD70 series revealed enormous technological gains in railroading.
The engines boasted a 32-bit 16MHz control microprocessor named the EM2000. This computer worked with an Integrated Cab Electronics (ICE) system to collect, analyze, and display a range of accurate-to-the-second information, including speed, amps, throttle position, air brake operation, and cab signals. All of this information was displayed on full-color LCD displays that replaced the gauges and indicators on earlier diesels.
The 70 Series also employed an HTCR (high-traction three-axle radial) truck that reduced lateral loads and rolling resistance in curves - increasing wheel life by up to 20 percent. By far the largest owner of SD70Ms was, and still is, the Union Pacific, which set a record for the largest single diesel order by purchasing 1000 engines - and later increasing the order by another 500 units. Production of the SD70M ended in 2004, as new EPA Tier 2 environmental regulations led to an upgraded design, the new SD70ACe.
- Intricately Detailed, Durable ABS Body
- Die-Cast Truck Sides, Pilots and Fuel Tank
- Metal Chassis
- Metal Handrails and Horn
- Moveable Roof Fans
- Metal Body Side Grilles
- Detachable Snow Plow
- (2) Handpainted Engineer Cab Figures
- Authentic Paint Scheme
- Metal Wheels, Axles and Gears
- (2) Remote-Controlled Proto-Couplers
- Prototypical Rule 17 Lighting
- Directionally Controlled Constant Voltage LED Headlights
- Lighted LED Cab Interior Light
- Illuminated LED Number Boards
- (2) Precision Flywheel-Equipped Motors
- Operating ProtoSmoke Diesel Exhaust
- Playable Horn Sounds
- Onboard DCC/DCS Decoder
- Locomotive Speed Control In Scale MPH Increments
- Proto-Scale 3-2 3-Rail/2-Rail Conversion Capable
- 1:48 Scale Proportions
- Proto-Sound 3.0 With The Digital Command System Featuring Quillable Horn With Freight Yard Proto-Effects
- Unit Measures: 18 1/2" x 2 5/8" x 4"
- Operates On O-36 Curves
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