4464 Vulcano
4464 may refer to: * 4-4-6-4 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. ..., a Whyte notation classification of steam locomotive * 4464 Vulcano, a minor planet {{number disambiguation ...
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4-4-6-4
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. These were duplex locomotives, in which both sets of driving wheels were mounted in a common, rigid locomotive frame. This locomotive design was a further development of the highly successful 2-10-4. The divided drive, or duplex arrangement, allowed for higher speeds with less damage to the track. Other equivalent classifications are: UIC classification: 2BC2 (also known as German classification and Italian classification) French classification: 2232 Turkish classification: 2435 Swiss classification For more than a century, the Swiss locomotive, multiple unit, motor coach and railcar classification system, in either its original or upda ...
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