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About: Top and tail     Goto   Sponge   NotDistinct   Permalink

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A top-and-tail railway train has locomotives at both ends, for ease of changing direction, especially where the terminal station has no run-round loop. This is a British term. It is normal for only the leading locomotive to power the train when in top-and-tail mode. It is properly distinct from a push-pull train, which has a locomotive at one end and a control cab at the other end. Trains going up zig zags of the Khyber Pass are top-and-tailed, although Pakistan Railways calls this by a different term.