Portal:Trains/Selected picture/Week 37, 2008

Steam dome construction

A cutaway view of the steam dome on a steam locomotive. Steam in the boiler collects in this dome at the top of the locomotive. Valves actuated by the engineer control the flow of steam from this dome through a large pipe, visible here, to the cylinders. Often, a smaller pipe, also seen here, leads from the steam dome to the locomotive's whistle.

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