Editing 2-4-4T (section)

{{Short description|Tank locomotive wheel arrangement}}
{{Refimprove|date=December 2009}}

[[File:WheelArrangement 2-4-4.svg|thumb|right|200px|Diagramatic representation of 2-4-4. Front of engine to the left.]]
[[Image:BRBL 6 Bldr.jpg|thumb|250px|2-4-4 [[Mason Bogie locomotive]] #6 on the [[Boston, Revere Beach and Lynn Railroad]] as built in 1886.]]
[[File:Tk locomotive.jpg|thumb|250px|[[OKf100|Lithuanian Tk]]]]
Under the [[Whyte notation]] for the classification of steam locomotives by wheel arrangement, 2-4-4 is a [[steam locomotive]] with two unpowered [[leading wheel]]s followed by four powered [[driving wheel]]s and four unpowered [[trailing wheel]]s. This configuration was only used for [[tank locomotive]]s.