One other thing at a lot of roundhouses, a system
called "Direct Steaming" was used. With it, steam from
the stationary boiler was connected to the water
filled boiler. In a very short time, the water was
heated and pressure was raised. This worked a lot like
the "fireless cookers" at industial plants. The fire
building was shortened to less than a half hour or so.
Also, at most roundhouses, the house steam line was
hooked into the blower line and this made the process
shorter as well.
John D. Mitchell, Jr.
--- Marshall Thayer <zephyr9903@e...> wrote:
> >> I have a question that maybe some of you can
> answer, about how long from the time the fire was
> lit in a Mike like the 4978 until they would have
> enuff steam to go to work <<
>
> I understand that a large engine steams about as
> fast as a smaller one - it generally takes about an
> hour and a half to bring the Midwest Central narrow
> gauge locos up to full operating pressure from dead
> cold.
>
> Marshall Thayer
>
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> [Non-text portions of this message have been
> removed]
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