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Locomotive Descriptions and Phases

Phases refer to incremental changes or improvements over a the production of a locomotive model. They generally indicate minor cosmetic differences observed by railfans and modelers and are thus rarely, if ever, used by railroads and builders.

Whenever possible, I have based phase information off existing, well-known phase descriptions. In some cases, I've modified the existing phases slightly based on my own observations. When I haven't been able to find existing phases, I've created my own. I include all visible phase differences in the latest drawings.

While I initially started only by listing basic phase details, I've gradually been expanding these pages into more comprehensive descriptions that include general production history, railroad-specific details, component variations, dimensions and measurements, and labelled illustrations. I've attempted to ensure the information is accurate and complete, but there may still be errors or omissions; please let me know if you find any!

Models

ALCO/MLW

EMD/GMD

GE