Models
Currently, four different Evolution Series models have been produced for the North American market. They are all six axle locomotives and have the wheel arrangement C-C (AAR classification) or Co'Co' (UIC classification), except for the ES44C4 which has an A1A-A1A wheel arrangement. All North American Evolution Series locomotives are equipped with a Nathan-Airhorn K5HL and K5HLL air horn and most later models are equipped with a Graham-White 373 E-BELL.
Read more about this topic: GE Evolution Series
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—Eda Le Shan (20th century)