this article is about locomotives that run on rails. for the type of heavy-haulage traction engine, see road locomotive (disambiguation). for other uses, see locomotive (disambiguation).
an hxd1delectric locomotive hauling a passenger train in china
pacific nationaldiesel locomotives in australia showing three body types, cab unit, hood unit and box cab
an r classsteam locomotive number r707 as operated by the victorian railways of australia
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a locomotive or engine is a rail transport vehicle that provides the motive power for a train. if a locomotive is capable of carrying a payload, it is usually rather referred to as a multiple unit, motor coach, railcar or power car; the use of these self-propelled vehicles is increasingly common for passenger trains, but rare for freight (see cargosprinter and iron highway).
traditionally, locomotives pulled trains from the front. however, push-pull operation has become common, where the train may have a locomotive (or locomotives) at the front, at the rear, or at each end.
Traditionally, locomotives pulled trains from the front. However, push-pull operation has become common, where the train may have a locomotive (or locomotives) at the front, at the rear, or at each end.