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Swiss classification: 3/5+3/5. The UIC classification is refined to (2'C)C2' for simple articulated locomotives. Challengers were most common in the Union Pacific Railroad, but many other railroads ordered them as well. An expansion for the Union Pacific Challenger class was the Union Pacific Big Boy class, being a 4-8-8-4, instead of a 4-6-6-4.
Overview. The first locomotives of the 2-6-6-2 wheel arrangement were built in 1906 by the Great Northern Railway to permit longer trains on their heavily graded line over the Cascade Mountains. [ 5] They were a refinement of the first North American Mallets, 0-6-6-0 engines built for the Baltimore & Ohio in 1904, with leading and trailing ...
Evolved from. 2-6-2+2-6-2. Under the Whyte notation for the classification of steam locomotives by wheel arrangement, a 4-6-2+2-6-4 is a Garratt or Union Garratt articulated locomotive using a pair of 4-6-2 engine units back to back, with the boiler and cab suspended between them. The 4-6-2 wheel arrangement of each engine unit has four leading ...
4-6-6-2. In Whyte notation, a 4-6-6-2 is a steam locomotive with four leading wheels (two axles) in an unpowered bogie at the front of the locomotive followed by two sets of driving wheels with six wheels each (three axles each), followed by two unpowered trailing wheels (one axle) at the rear of the locomotive. This wheel arrangement was used ...
4-6-2 locomotives. Front of locomotive at left. Wikimedia Commons has media related to 4-6-2 locomotives. The main article for this category is 4-6-2. Locomotives classified 4-6-2 under the Whyte notation of locomotive axle arrangements. The equivalent UIC classification of locomotive axle arrangements is 2C1 or 2'C1'.
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. The name comes from the locomotive's first service with the Chesapeake and Ohio ...
Garratt locomotives. The 2-6-2+2-6-2 was the second most numerous Garratt wheel arrangement to be built, with altogether 238 examples constructed by Beyer, Peacock and Company (BP) and its licensees. Most of them were built to 3 ft 6 in ( 1,067 mm) Cape gauge, 1,000 mm ( 3 ft in) metre gauge and the 2 ft 6 in ( 762 mm) or 2 ft ( 610 mm) narrow ...
2-6-0. Under the Whyte notation for the classification of steam locomotives, 2-6-0 represents the wheel arrangement of two leading wheels on one axle, usually in a leading truck, six powered and coupled driving wheels on three axles and no trailing wheels. This arrangement is commonly called a Mogul. [ 1]