Editing 2-10-4 (section)

==Overview==
The {{nowrap|2-10-4}} Texas wheel arrangement originated and was principally used in the United States. The evolution of this locomotive type began as a [[2-10-2|{{nowrap|2-10-2}} Santa Fe]] type with a larger four-wheeled trailing truck that would allow an enlarged [[Firebox (steam engine)|firebox]]. A subsequent development was as an elongated [[2-8-4|{{nowrap|2-8-4}} Berkshire]] type that required extra driving wheels to remain within [[axle load]] limits. Examples of both of these evolutionary progressions can be found.<ref name=Barris />

Some {{nowrap|2-10-4}} [[tank locomotive]]s also existed in eastern Europe. One extraordinary experimental {{nowrap|2-10-4}} tender locomotive, built in the [[Soviet Union]], had an [[Soviet opposed-piston 2-10-4|opposed-piston drive system]].<ref name=Russia>[http://www.aqpl43.dsl.pipex.com/MUSEUM/LOCOLOCO/russ/russrefr.htm Russian Reforms] {{Webarchive|url=https://web.archive.org/web/20101018053044/http://www.aqpl43.dsl.pipex.com/MUSEUM/LOCOLOCO/russ/russrefr.htm |date=2010-10-18 }} (Accessed on 3 October 2016)</ref>