Under the Whyte notation system, a steam locomotive that has a single-axle leading truck followed by four powered driving axles, and no trailing wheels. Its popular name is "Consolidation" as its appearance coincided with the consolidation of several Eastern coal railroads. The Consolidation was extremely popular, especially in the first quarter of the 20th century.

Under the Whyte notation system, a steam locomotive that has four leading wheels on a leading truck followed by four sets of coupled driving wheels, and no trailing wheels.

Under the Whyte notation system, a steam locomotive, with four axles connecting eight powered driving wheels, and no leading wheels or trailing wheels.

Under the Whyte notation system, a Mallet-type locomotive with no leading truck, two sets of eight driving wheels, and no trailing truck.

Under the Whyte notation system, a Mallet-type locomotive with two leading wheels on a leading truck, two sets of eight driving wheels, and no trailing wheels.

Under the Whyte notation system, a Mallet-type locomotive with two leading wheels on a leading truck, a set of six driving wheels followed by another set of eight driving wheels, and no trailing wheels.

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

plural of 2-8-0

plural of 0-8-0