will be 2 different numbered units for each road name plus an undecorated unit.
Mid-Production units will have the appearance "after 1990", which will
include ditch lights so the modeler can use them with their modern freights and
in combination with other modern locos. The ditch lights on these units will be
deck mounted, as was the prototype. These engines will also be equipped with anti-climbers.
Deocder Ready: Use the Digitrax DN163K1C
decoder for easy drop-in installation (all the engines on this page are current
post 2006 production).
For pre-2006 Kato SD40-2 engines use the Digitrax
DN163K1B. To tell if your engine is pre-2006 look at the light board. If it
contains surface mount LEDs as shown below then it is the more recent version.
If it contains 3mm LEDs on leads soldered to the board then it is a pre-2006 version.
BN, CN: SD40-2 Mid-Production Version of the BN - white face and the CN -
IC Repaint. The BN amassed a fleet of 827 SD40-2's. They started out hauling coal
trains out of Wyoming's Powder River Basin and then started moving transcontinental
freight between the West Coast and the Midwest. The CN - IC Repaint has generated
interest from both the Canadian modelers and the U.S. modelers because of the
IC (Illinois Central) markings on a CN locomotive. Built originally for the Burlington
Northern, they were later purchased by the Illinois Central and are now owned
by the Canadian National. They are used with other CN power on all types of freight
service and are occasionally used in pool service with other roads.