0-8-2

This has been a relatively unusual wheel arrangement on mainline railways In the United Kingdom, a number of tank locomotive designs were built of the 0-8-2 type, including the London and North Eastern Railway (LNER) R1 class, designed by Henry A. Ivatt and built originally for the Great Northern Railway as their class L1.

Dorrigo Steam Railway and Museum has preserved Avonside 0-8-2 Tank Locomotive number 14, formerly operated by South Maitland Railways collieries line in the Hunter Valley of N.S.W.

In North America, its use was confined to 2-8-2 "Mikado" types assigned to switcher roles; the lead truck was often removed to give more weight on drivers, a guiding truck not being needed at slow speed.

The arrangement has proved a little more popular on narrow-gauge and minimum-gauge lines, where the lack of leading wheels was less important due to the relatively slow operating speeds.

It has remained in traffic on passenger duties ever since and is now the oldest working 15 inch gauge locomotive in the world.