ROTOTYPE SPECIFIC INFORMATION
In order to meet stricter diesel locomotive emissions standards imposed by EPA Tier II regulations, EMD modified the SD70MAC to create the SD70ACe and SD70M-2. Each model is powered by a 16-cylinder, 4300-horsepower diesel engine. On the SD70M-2, the prime mover drives an alternator and produces AC current that is rectified to DC current, which powers the traction motors. On the SD70ACe, the DC current is then “chopped” back into AC to power the traction motors.
Much of the external design is based on the SD90 series locomotives. Simi- lar features include the full height nose door and rectangular windshields, the large flared radiators with two fans, and the positioning of the dynamic brake equipment at the rear of the long hood. In addition, the inverters were moved from inside the long hood to a box on the walkway behind the fireman’s side of the cab.
Due to surplus production line capacity, Progress Rail outshopped several locomotives in the early 2020s (some sources indicate that these units were to be part of a Norfolk Southern order). The two units on offer here are known as “Tier 4 Credit SD70ACes”, and are produced using “banked” credits that are obtained from the production of tier 4 emissions-compliant units.
SD70ACe SERIES LOCOMOTIVE FEATURES:
- Flexible rubber trainline hose
- Flexible rubber MU hoses
- Etched see-through steps
- Lift rings
- Lit Number Boards & Truck Lights
- Sander lines
- Minimum radius: 18” — Recommended radius: 22”
GENESIS DIESEL LOCOMOTIVE FEATURES:
- Trainline hose
- See-through cab windows
- Full cab interior
- Walkway tread
- Windshield wipers
- Wire grab irons
- DCC-ready features Quick Plug™ plug-and-play technology with 21-pin NEM connector
- Fine-scale Celcon handrails for scale appearance
- Detailed fuel tank with fuel fillers, fuel gauges, breather pipes, and retention tanks
- Body-mounted McHenry® operating scale knuckle couplers
- Genesis driveline with 5-pole skew wound motor, precision machined flywheels, and multi-link drivetrain for trouble free operation
- Eight-wheel drive with precision gears for smooth and quiet operation
- All-wheel electrical pickup provides reliable current flow
- Wheels with RP25 contours operate on all popular brands of track
- LED Lighting for trouble free operation
- Heavy die-cast frame for greater traction and more pulling power
- Scaled from prototype resources including drawings, field measurements, photographs, and more
- Accurately-painted and –printed paint schemes
- Fully-assembled and ready-to-run
- Packaging securely holds the model for safe storage
- Coupler cut levers
- MU hoses
LEGENDARY LIVERIES
What are Legendary Liveries? An Athearn exclusive, they are the ultimate answer to “What if?” Featuring some of the most popular railroad paint schemes of all time, these models are perfect for collecting, proto- freelancing, or just plain fun! Whether company proposed paint schemes, canceled locomotive orders, or alternate takes on history, Legendary Liveries are fun and unique additions to any roster. Enjoy these items, and answer the ultimate railroad question of: “What if?”
Product Specs
Minimum Radius
18" (457 mm)
Full Road Name
Progress Rail
Prototype Manufacturer
EMD
