A steam locomotive is a locomotive that provides the force to move itself and other vehicles by means of the expansion of steam. It is fuelled by burning combustible material to heat water in the locomotive's boiler to the point where it becomes gaseous and its volume increases 1,700 times. Functionally, it is a steam engine on wheels.
A Fairlie locomotive is a type of articulated steam locomotive that has the driving wheels on bogies. The locomotive may be double-ended or single ended. Most double-ended Fairlies had wheel arrangements of 0-4-4-0T or 0-6-6-0T.
Under the Whyte notation for the classification of steam locomotives, 4-8-2 represents the wheel arrangement of four leading wheels, eight powered and coupled driving wheels and two trailing wheels. This type of steam locomotive is commonly known as the Mountain type, though the New York Central Railroad used the name Mohawk for their 4-8-2s.
The GWR 4100 Class was a class of steam locomotives in the Great Western Railway (GWR) of the United Kingdom.
The New South Wales Z12 class was a class of 4-4-0 steam locomotives operated by the New South Wales Government Railways of Australia.
The New South Wales AD60 class were Beyer-Garratt patent articulated four-cylinder, simple, non-condensing, coal-fired superheated, 4-8-4+4-8-4 heavy goods steam locomotives built by Beyer, Peacock & Company for the New South Wales Government Railways in Australia.
The D58 class was a class of steam locomotives built by the New South Wales Government Railways in Australia. They were built with the 4-8-2 wheel arrangement.
The Z18 class was a class consisting of six 0-6-0T steam tank locomotives built by Vulcan Foundry for the New South Wales Government Railways of Australia.
The Z24 class was a two-cylinder, non-condensing, saturated 2-6-0 ‘ Mogul‘ type steam engine built by Dübs & Company for the New South Wales Government Railways of Australia.
The WAGR P and Pr classes were two classes of 4-6-2 steam locomotives designed for express passenger service on the Western Australian Government Railways mainline network. The initial designs were prepared by E.S. Race and together the two classes had a total build number of thirty-five locomotives, the P and Pr classes entering service in 1924 and 1938 respectively. Both classes were used on express passenger services, greatly improving the economy and speed of long-distance passenger travel in Western Australia, the results of which were most visible on the Western Australian stage of the Trans-Australian Railway and Westland Express.
The South African Railways Class 14 4-8-2 of 1913 was a steam locomotive.
The South African Railways Class 10B 4-6-2 of 1910 was a steam locomotive from the pre-Union era in Transvaal.
The South African Railways Class 2C 4-6-2 of 1910 was a steam locomotive from the pre-Union era in the Colony of Natal.
The South African Railways Class 3B 4-8-2 of 1912 was a steam locomotive.
The South African Railways Class Experimental 6 4-8-0 of 1906 was a steam locomotive from the pre-Union era in the Cape of Good Hope.
The South African Railways Class NG5 2-8-2 of 1922 was a class of narrow-gauge steam locomotives.
The New South Wales Z11 class was a class of steam locomotives built by Beyer, Peacock & Company for the New South Wales Government Railways in Australia.
The New South Wales Z14 class was a class of steam locomotives operated by the New South Wales Government Railways in Australia.
The Central South African Railways Rack 4-6-4RT of 1905 was a South African steam locomotive from the pre-Union era in Transvaal Colony.
The Cape Government Railways 4th Class 4-6-0TT of 1884 was a South African steam locomotive from the pre-Union era in the Cape of Good Hope.
