A diesel multiple unit, commonly abbreviated DMU, is a passenger train made up of one or more self-propelled diesel powered carriages that can be coupled together and driven from either end without a separate locomotive. Widely adopted from the 1950s onward on secondary and rural rail lines where full electrification was not economical, the diesel multiple unit remains a common form of regional and branch line passenger rolling stock on non-electrified railways worldwide.
Facts
SignificancePassenger train powered by on-board diesel engines; diesel railcars appeared in the 1930s and DMUs became popular immediately post-war. 1 Sources
1. Diesel multiple unit, Wikipedia
History, early development
The first diesel railcars appeared in the 1930s and DMUs became popular immediately post-war.
In Group: Multiple Unit Trains, Lead sentence
A diesel multiple unit (DMU) is a multiple unit train powered by on-board diesel engines.
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