4-4-0
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4-4-0, in the Whyte notation, denotes a steam locomotive with a wheel arrangement of four leading wheels on two axles, four powered and coupled driving wheels on two axles, and no trailing wheels.
An 1880s woodcut of a 4-4-0 locomotive
1856 relief sculpture of a 4-4-0 commissioned by the Norris Locomotive Works, depicting an early model prior to the adoption of the covered cab
Remains of a 4-4-0 locomotive of the Richmond & Petersburg Railroad, Richmond, Virginia, 1865
Short wheelbased St Lawrence & Atlantic Railroad Coos, c. 1856, Longueuil, Quebec
Whyte notation
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The Whyte notation is a classification method for locomotives based on wheel arrangement. While the Whyte notation is most commonly used when referring to steam locomotives, it can also be applied to
4-4-0
…4-4-0, in the Whyte notation, denotes a steam locomotive with a wheel arrangement of four leading wheels on two axles (usually in a leading bogie), four powered and coupled driving…
Whyte notation from a handbook for railroad industry workers published in 1906