Back Postrk Czech Schiebelokomotive German Locomotora de refuerzo Spanish Työntöveturi Finnish 補助機関車 Japanese Lokomotywa pracująca na popychu Polish Локомотив-толкач Russian Pålok Swedish Локомотив-штовхач Ukrainian 輔助機車 Chinese
A bank engine (United Kingdom/Australia) (colloquially a banker), banking engine, helper engine or pusher engine (North America) is a railway locomotive that temporarily assists a train that requires additional power or traction to climb a gradient (or bank). Helpers/bankers are most commonly found in mountain divisions (called "helper districts" in the United States), where the ruling grade may demand the use of substantially greater motive power than that required for other grades within the division.
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