2-6-4-4

Under the Whyte notation for the classification of steam locomotives, a 2-6-4 locomotive has two leading wheels, one set of six driving wheels, one set of four driving wheels, and four trailing wheels.
===Other equivalent classifications are===
UIC classification: 1CB2 (also known as German classification and Swiss classification)
The equivalent UIC classification is refined to (1′C)B2′ for Mallet locomotives.
==Proposed design==
In the days of the steam era, a proposed locomotive design was done by the London and North Eastern Railway (LNER) for a 2-6-4-4 locomotive and it was a class UA1 Mallet. But it was never built due to steam technology seeming a bit old-school and diesel locomotives were taking over steam locomotives.
==External links==
*The LNER Encyclopedia: https://www.lner.info/forums/viewtopic.php?f=11&t=10993
Category:Unbuilt locomotives
Category:Wheel arrangements