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- 2-6-6-4 abstract "In the Whyte notation for the classification of steam locomotive wheel arrangement, a 2-6-6-4 is a locomotive with a two-wheel leading truck, two sets of six driving wheels, and a four-wheel trailing truck. All 2-6-6-4s have been articulated locomotives, of the Mallet or related simple articulated type.Other equivalent classifications are:UIC classification: (1'C)C2' (also known as German classification and Italian classification)French classification: 130+032Turkish classification: 34+35Swiss classification: 3/4+3/5The UIC classification is refined to (1'C)C2' for Mallet locomotives.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. High speeds were certainly among the design goals for a 2-6-6-4; most of the type were intended for use on fast freight trains.The first 2-6-6-4s built in the United States were for the Pittsburgh & West Virginia Railroad, and these were not high speed locomotives but rather mountain luggers. They received three in 1934 and four more in 1937 and operated the 2-6-6-4's until 1953. The next of the type were a class of ten ordered by the Seaboard Air Line in 1935 and 1937. These were high speed freight engines and were successful. Upon dieselisation the road sold the locomotives to the Baltimore & Ohio Railroad in 1947, who operated them until 1953.The final class of 2-6-6-4s was the Norfolk & Western Railway's Class A, built starting in 1936. 43 were built until 1950 but were operated until 1959 to prepare the ending of Steam power. The powerful 2-6-6-4s were capable of more than 5000 drawbar horsepower at 45 mph (72 km/h) and could reach 70 mph (110 km/h), but could lug heavy coal trains. They were used until dieselisation in 1959. One locomotive, Norfolk & Western 1218, was preserved and in 1987 was restored to running order, running on excursions until 1991. Today it is on display at the Virginia Museum of Transportation.In all, 60 2-6-6-4s were constructed in North America.".
- 2-6-6-4 thumbnail NW_Class_A.jpg?width=300.
- 2-6-6-4 wikiPageExternalLink 03NS0004.jpg.
- 2-6-6-4 wikiPageExternalLink 03NS0005.jpg.
- 2-6-6-4 wikiPageExternalLink viewphoto.php?id=122917.
- 2-6-6-4 wikiPageExternalLink viewphoto.php?id=143180.
- 2-6-6-4 wikiPageExternalLink 817ygeos.asp.
- 2-6-6-4 wikiPageID "1220199".
- 2-6-6-4 wikiPageLength "3498".
- 2-6-6-4 wikiPageOutDegree "29".
- 2-6-6-4 wikiPageRevisionID "708156700".
- 2-6-6-4 wikiPageWikiLink Articulated_locomotive.
- 2-6-6-4 wikiPageWikiLink Baltimore_and_Ohio_Railroad.
- 2-6-6-4 wikiPageWikiLink Category:2-6-6-4_locomotives.
- 2-6-6-4 wikiPageWikiLink Category:Locomotives_by_wheel_arrangement.
- 2-6-6-4 wikiPageWikiLink Dieselisation.
- 2-6-6-4 wikiPageWikiLink Driving_wheel.
- 2-6-6-4 wikiPageWikiLink Firebox_(steam_engine).
- 2-6-6-4 wikiPageWikiLink French_locomotive_classification.
- 2-6-6-4 wikiPageWikiLink Leading_wheel.
- 2-6-6-4 wikiPageWikiLink Lima_Locomotive_Works.
- 2-6-6-4 wikiPageWikiLink Mallet_locomotive.
- 2-6-6-4 wikiPageWikiLink Norfolk_&_Western_1218.
- 2-6-6-4 wikiPageWikiLink Norfolk_and_Western_Railway.
- 2-6-6-4 wikiPageWikiLink Pittsburgh_and_West_Virginia_Railway.
- 2-6-6-4 wikiPageWikiLink Seaboard_Air_Line_Railroad.
- 2-6-6-4 wikiPageWikiLink Steam_locomotive.
- 2-6-6-4 wikiPageWikiLink Superpower_steam.
- 2-6-6-4 wikiPageWikiLink Swiss_locomotive_and_railcar_classification.
- 2-6-6-4 wikiPageWikiLink Trailing_wheel.
- 2-6-6-4 wikiPageWikiLink Turkish_locomotive_classification.
- 2-6-6-4 wikiPageWikiLink UIC_classification_of_locomotive_axle_arrangements.
- 2-6-6-4 wikiPageWikiLink United_States.
- 2-6-6-4 wikiPageWikiLink Virginia_Museum_of_Transportation.
- 2-6-6-4 wikiPageWikiLink Wheel_arrangement.
- 2-6-6-4 wikiPageWikiLink Whyte_notation.
- 2-6-6-4 wikiPageWikiLink File:NW_Class_A.jpg.
- 2-6-6-4 wikiPageWikiLinkText "2-6-6-4".
- 2-6-6-4 wikiPageUsesTemplate Template:.
- 2-6-6-4 wikiPageUsesTemplate Template:Clear.
- 2-6-6-4 wikiPageUsesTemplate Template:Whyte_types.
- 2-6-6-4 subject Category:2-6-6-4_locomotives.
- 2-6-6-4 subject Category:Locomotives_by_wheel_arrangement.
- 2-6-6-4 hypernym Locomotive.
- 2-6-6-4 type Locomotive.
- 2-6-6-4 type Locomotive.
- 2-6-6-4 type Concept.
- 2-6-6-4 comment "In the Whyte notation for the classification of steam locomotive wheel arrangement, a 2-6-6-4 is a locomotive with a two-wheel leading truck, two sets of six driving wheels, and a four-wheel trailing truck.".
- 2-6-6-4 label "2-6-6-4".
- 2-6-6-4 sameAs Q4596844.
- 2-6-6-4 sameAs m.04jjm2.
- 2-6-6-4 sameAs Q4596844.
- 2-6-6-4 wasDerivedFrom 2-6-6-4?oldid=708156700.
- 2-6-6-4 depiction NW_Class_A.jpg.
- 2-6-6-4 isPrimaryTopicOf 2-6-6-4.