Re: [ihc] no IH content, but fun--

[Steven Stegmann <steve.stegmann@xxxxxxxxxxxxx>]

Richard,

I believe the chief Mallot feature missing from the
Big Boy is running the second engine on exhaust steam
from the first engine.  I don't belive the Big Boy is
compound because it would have gotten too much wider
with the inevitably larger secondary cylinders.

Steve
--- Richard Welty <rwelty@domain.elided> wrote:

> On Mon, 25 Oct 2004 08:04:14 -0700 (PDT) Steven
> Stegmann <steve.stegmann@domain.elided> wrote:
> 
> > There's a UP "Big Boy" in the St. Louis County
> > Transportation Museum.  Hard to imagine something
> like
> > that moving.
> 
> there's another on static display at Steamtown in
> Scranton
> (which has become a very nice facility since the
> national
> park service took it over and moved it there from
> Bellows
> Falls; under private ownership at Bellows Falls it
> was
> an impressive but slowly deterioriating collection.
> under
> the NPS, there are fewer engines in much better
> shape.)
> 
> --- Greg Hermann <bearbvd@domain.elided> wrote:
> > Sorta light compared to, say, one of the UP's old
> > 'Big Boy' steam mallets
> 
> technically, the Big Boy was not a Mallet, which was
> an earlier variantion on the articulated theme.
> there
> were a couple of technical features that
> distinguished
> the Mallet, all of which escape me now.
> 
> richard
> -- 
> Richard Welty                                       
>  rwelty@domain.elided
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