The locomotives also featured black and white lining.

The locomotives featured thermic syphons and Bulleid's innovative, but controversial, chain-driven valve gear.

The locomotives featured a unique wheel arrangement, 1-Do-2 under the UIC classification system, and incorporated a quill drive to the driving wheels.

These locomotives feature Tier 1 compliant 20-710GB engines.

The locomotive featured a Type 3B boiler almost identical to that of the Black Fives.

The locomotive also features an under-slung transformer so that the body is relatively empty compared to contemporary electric locomotives.

The locomotives feature a rearing horse on the nose, which is consistent with prior marketing campaigns where NS has billed itself as "The Thoroughbred."

The streamlined locomotives featured prominently on NYC advertising.

All locomotives feature an indirect air brake manufactured by Knorr, with automatically stronger braking action at high speeds; for shunting/switching service an additional direct brake is present.

Many locomotives feature thyristor load diverters.