2-4-4-0

In the Whyte notation for the classification of steam locomotive wheel arrangement, a 2-4-4-0 is a locomotive with two leading wheels, two sets of four driving wheels, and no trailing wheels. Examples of this type were constructed as Mallet locomotives.
==Examples==
The Chemins de Fer Departmentaux Vivarais and the Chemins de Fer Departmentaux Lozère each possessed 2-4-4-0 Mallet locomotives. The Société Alsacienne de Constructions Mécaniques built three for the Vivarais system in 1908 and two for the Lozère system in 1909.
==Equivalent classifications==
Other equivalent classifications are:
*UIC classification: 1BB (also known as German classification and Italian classification)
*French classification: 120+020
*Turkish classification: 23+22
*Swiss classification: 2/3+2/2
*Russian classification: 1-2-0+0-2-0
The UIC classification is 1B'B.
Category:2-4-4-0 locomotives
Category:2-4-4-0 steam locomotives
Category:Wheel arrangements