4-4-4-4
http://dbpedia.org/resource/4-4-4-4 an entity of type: WikicatLocomotivesByWheelArrangement
A 4-4-4-4 steam locomotive, in the Whyte notation for describing locomotive wheel arrangements, has a four-wheel leading truck, two sets of four driving wheels, and a four-wheel trailing truck. While it would be possible to make an articulated locomotive of this arrangement, the only 4-4-4-4s ever built were duplex locomotives—with two sets of cylinders driving two sets of driven wheels in one rigid frame, essentially a 4-8-4 with divided drive.
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Um arranjo 4-4-4-4 na Classificação Whyte para locomotivas a vapor é da seguinte maneira configurada: quatro rodeiros líderes em um truque seguido por dois truques de rodeiros motrizes e mais um truque de rodeiros não tracionados. Outras classificações equivalentes: Classificação UIC: 2BB2 (também na Classificação Alemã e na Classificação Italiana): 2222: 2424Classificação Suíça: 2/4+2/4 até meados de 1920, depois 4/8
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4-4-4-4
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Locomotiva 4-4-4-4
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4
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1256965
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1081548630
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Diagram of one small leading wheel, and four large driving wheels joined by a coupling rod
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Baldwin Locomotive Works
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Front of locomotive at left
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The Baltimore & Ohio Railroad's #5600 George H. Emerson.
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United States
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May 1937
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April 1942
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Baltimore and Ohio Railroad
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Ralph P. Johnson
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4
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2222
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Image:Baltimore and Ohio Duplex.jpg
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Better high speed performance
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Decreased wheelbase
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Premature cylinder wear, cylinder clogging and restricted firebox size
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2
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4
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2424
<second>
120.0
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A 4-4-4-4 steam locomotive, in the Whyte notation for describing locomotive wheel arrangements, has a four-wheel leading truck, two sets of four driving wheels, and a four-wheel trailing truck. While it would be possible to make an articulated locomotive of this arrangement, the only 4-4-4-4s ever built were duplex locomotives—with two sets of cylinders driving two sets of driven wheels in one rigid frame, essentially a 4-8-4 with divided drive.
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Um arranjo 4-4-4-4 na Classificação Whyte para locomotivas a vapor é da seguinte maneira configurada: quatro rodeiros líderes em um truque seguido por dois truques de rodeiros motrizes e mais um truque de rodeiros não tracionados. Outras classificações equivalentes: Classificação UIC: 2BB2 (também na Classificação Alemã e na Classificação Italiana): 2222: 2424Classificação Suíça: 2/4+2/4 até meados de 1920, depois 4/8
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8101
