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The Lionel Corporation used the 2-6-4 wheel arrangement in many of its model steam locomotives, including the 2037 used in the infamous pastel-coloured Girls' Train. [9] Their 2-6-4 model was based on the Pennsylvania Railroad’s K4 class pacific, even though this was a 4-6-2 rather than a 2-6-4. [10]
No. 1218 is the sole survivor of the Norfolk and Western's class A locomotives and the only surviving 2-6-6-4 steam locomotive in the world. While smaller than Union Pacific's famous and more numerous "Challenger" class of 4-6-6-4 locomotives, Norfolk and Western's design racked up unmatched records of performance in service.
The 2-6-6-4 was a fairly late development, a product of the superpower steam concept, introduced by the Lima Locomotive Works, which encouraged the use of large fireboxes supported by four-wheel trailing trucks. Such a firebox could sustain a rate of steam generation to meet any demands of the locomotive's cylinders, even at high speed.
It was restored and operated in excursion service for the Norfolk Southern steam program between 1987 and 1991 and went for an overhaul. The program was then canceled in 1994 and the locomotive was eventually put back on display at the Virginia Museum of Transportation in Roanoke, Virginia. It is the only surviving 2-6-6-4 steam locomotive in ...
1500 hp (equivalent to a class Su locomotive) - either 4-6-2 or 2-6-4 wheel arrangement with 18 ton axle load After analyzing the various proposals, VNIIZhT workers concluded that a 4-8-4 locomotive producing 3000 hp would meet requested performance characteristics, but as a locomotive with 18-ton axle loading was needed, in 1947 Kolomna Works ...
The introduction of the 4-6-2 design in 1901 has been described as "a veritable milestone in locomotive progress". [3] On many railways worldwide, Pacific steam locomotives provided the motive power for express passenger trains throughout much of the early to mid-20th century, before either being superseded by larger types in the late 1940s and 1950s, or replaced by electric or diesel-electric ...
A 4-4-6-4, in the Whyte notation for the classification of steam locomotives by wheel arrangement, is one that has four leading wheels followed by four coupled driving wheels, a second set of six coupled driving wheels and four trailing wheels. The Pennsylvania Railroad's Q2 class were the only locomotives ever to use this arrangement.
The 2-6-6-6 (in Whyte notation) is an articulated locomotive type with two leading wheels, two sets of six driving wheels and six trailing wheels. Only two classes of the 2-6-6-6 type were built. One was the "Allegheny" class , built by the Lima Locomotive Works .