Under the Whyte notation system, a Mallet-type locomotive with two leading wheels on a leading truck, two sets of eight driving wheels, and four trailing wheels on a trailing truck.

plural of 2-8-8-2

plural of 2-8-8-4

plural of 2-8-8-0

Under the Whyte notation system, a steam locomotive that has two leading wheels, three sets of eight driving wheels, and a two trailing wheels.

Under the Whyte notation system, a steam locomotive that has two leading wheels, three sets of eight driving wheels, and four trailing wheels.

plural of 2-8-8-8-2

plural of 2-8-8-8-4

Under the Whyte notation system, a Garratt steam locomotive that is articulated in three parts, with a boiler mounted on the centre frame, and two steam engines mounted in opposite directions on separate frames, one on each end of the boiler, and each engine having a 2-8-0 wheel configuration.

plural of 2-8-0+0-8-2