HO SD70ACe Undec/UP Style by Athearn (ATHG68500)

G68500

HO SD70ACe, Undecorated/UP-style

Key Features

Genesis driveline with dynamically balanced five pole skew wound motor and dual flywheels
All-wheel drive and electrical pick-up
NMRA 8-pin/9-pin plug for DCC
Full cab interior including in cab video camera [non-functional replica]
Correctly sized operating ditch lights
MU hoses, coupler lift bars, train line air hoses
Safety tread on walkways
Etched see-through grilles
Wire grab irons
Equipped with McHenry scale knuckle spring couplers

Detailed Information

In order to meet the stricter diesel locomotive emissions standards imposed by the EPA Tier II regulations, EMD modified the SD70MAC and created the SD70ACe. The SD70ACe is powered by a 16 cylinder, 710G3C-T2 diesel engine, producing 4,300 horsepower. The engine drives an alternator producing AC current that is rectified to DC current and then “chopped” back into AC to power the traction motors. The engine and electrical system are similar to the SD70MAC, but updated with newer technology. Much of the external design is based on the SD90 series locomotives. Some of these 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 cab. Four demonstrator locomotives were built in 2003, followed by 20 pre-production units for CSX in 2004. Full production started in 2005 and through 2009, 820 SD70ACe’s have been built for the US and Mexico. Nine more were exported to Venezuela and 46 built for BHP Billiton’s iron ore operation in Pilbara, Australia. In addition 10 units from BNSF’s 2008 order were diverted to BHP. Union Pacific painted six units in paint schemes commemorating the six railroads that were merged into UP in the 1980’s and 1990’s and renumbered them for the year of the mergers.



Road


Numbers


Qty


Order #


Build Dates
EMD GM70 - GM73 4 20026404 4/03 - 5/03
CSXT 4831 - 4850 20 20036520 4/04 - 9/04
UP 8309 - 8423 115 20046610 1/05 - 7/05
KCS 4000 - 4029 30 20046620 11/05 - 1/06
MRL 4300 - 4315 16 20046621 5/05 - 7/05
FXE 4000 - 4014 15 20048602 5/06 - 6/06
UP 8424 - 8523 100 20056723 5/06 - 8/06
BNSF 9370 - 9399 30 20056729 2/06 - 4/06
UP 8521 - 8620 100 20056753 2/07 - 7/07
BNSF 9330 - 9369 40 20056766 8/06 - 10/06
KCS 4030 - 4059 30 20066856 8/07 - 9/07
KCSM 4060 - 4099 40 20066886
BNSF 9130 - 9329 200 20066862 11/07 - 9/08
KCS 4100 - 4129 30 20066887 1/08 - 4/08
UP 8621 - 8670 50 20066888 5/08 - 8/08

GM70, GM72, and GM73 were sold to KCS as 3997 – 3999.

Prototype specific details that may be applied to this model:

Early or Late cab
Nose or cab mounted headlight
New version HTCR or HTSC trucks
Dynamic brake louver variations as per the prototype
Fuel tanks with single or dual fuel fillers
Inverter box with original X-panels, X-panels with cut in louvers, or factory louvers
Regular grills or Canadian National style louvers on the dynamic brake intake with the blower detail inside
Prototypically correct plow and Canadian National rear pilot
GPS dome and antennas as per the prototype
Two styles of anticlimbers
Early or late handbrake housing and wheel

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