Atlas N GP40-2W
Sound models have an ESU sound decoder
In 1973 Canadian National (CN) designed the safety cab, also known as the comfort cab, which featured a full-width nose that was intended to improve crew safety in the event of a collision. The first CN locomotives to feature this cab were GMDD GP38-2s and MLW M420s. GO Transit ordered the first safety cab equipped GP40-2s in 1973 with a three-unit order. CN then ordered their first safety cab GP40-2s from GMDD in 1974. Using CN’s locomotive classification system, these locomotives were assigned the designation GF-430 (General Motors, Freight, 4-axle, 3000hp). Letters are added after this designation to denote the separate orders for a given model.
The terminology "early" and "late" is used when referring to various road names on this run. "Late" CN and former CN units feature ditch lights, snow shields and have their air horn relocated to the top of the long hood.