Editing 4-6-2 (section)

===Tank locomotives===
During the first two decades of the 20th century, the Pacific wheel arrangement enjoyed limited popularity on [[tank locomotives]]. On a {{nowrap|4-6-2T}} locomotive, the trailing wheels support the [[Tank locomotive#Fuel bunker|coal bunker]] rather than an enlarged firebox and such a locomotive is therefore actually a tank engine version of the [[4-6-0|{{nowrap|4-6-0}} Ten-wheeler]] tender locomotive. Indeed, many of the earliest examples were either rebuilt from tender locomotives or shared their basic design.

Around 1920, it became apparent to designers that the {{nowrap|4-6-2T}} wheel arrangement allowed a too limited bunker size for most purposes, with the result that most later designs of large suburban tank classes were of the [[4-6-4|{{nowrap|4-6-4T}} Hudson]] or [[2-6-4|{{nowrap|2-6-4T}} Adriatic]] wheel arrangement.