Talk:Power at rail

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The reason that maximum power at rail is rarely given for steam locomotives is that any steam engine can for a short time develop enormous power by "mortaging the boiler". That is, by using steam faster than the boiler can generate it.

However, sometimes figures are quoted for drawbar horse power, which is measured over a long time/distance using a dynamometer car. Maximum figures for British locomotives are around 2,000 dhp.

I don't have a reference for this information - if any railway engineers can find one though....

--Exile (talk) 19:27, 30 April 2008 (UTC)