HUTCH 7.62 Wrote:
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> FEF-3 Wrote:
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> -----
> > Hot Steamer Wrote:
> >
> --------------------------------------------------
>
> > -----
> > > FEF-3 Wrote:
> > >
> >
> --------------------------------------------------
>
> >
> > > -----
> > > >
> > > > Of course it would make it through those
> > > tunnels.
> > > > SP
> > > > cab forwards did and UP 3985 did.
> > > >
> > > > So far, there i9s no indication they will
> run
> > > > anything
> > > > west after GS.
> > >
> > > The Big Boys are abit longer than the Cab
> > Forwards
> > > and also the UP 3985... might be close
> > clearances
> > > in some of them. If they run any steam west
> I
> > > imagine it would be the UP 844 to Sacramento
> > and
> > > return in 2019. SP 4449 would be appropriate
> > and
> > > a great unique PR move for the history of the
> > > western end, but I don't see UP going for any
> > > other locomotives other than their own to
> > > celebrate.
> >
> > I should have said "without issues." Yes an SP
> > AC
> > is shorter than both a Challenger or a Big Boy,
> > but
> > not by much, and when the tunnels and sheds
> were
> > enlarged for the AC's, they made them larger
> than
> > absolutely necessary to clear ACs at the time,
> to
> >
> > allow for future, even longer and larger
> > locomotives
> > so they wouldn't have to do it over again. Same
> > applies to the clearance in cuts on curves and
> the
> >
> > spacing between main and side tracks or between
> > two
> > main lines, especially on curves.
> >
> > In today's culture, that would be called
> > expensive
> > overkill. In those days, it was thinking about
> > the future and that it usually costs less to do
>
> > something a little bigger than absolutely
> > necessary
> > the first time than to have to do it twice.
> >
> > Same applies to the bridges built in the early
> > 1900s,
> > many of which are still serving well today.
>
>
> I belive rhe AC-9’s couldn’t clear Donner

Or SP was smart enough not to run such large engines
with the stacks in front over Donner. That's what the
cab-forwards were for.

Don't worry, though. The World's Greatest Steam Expert
will come out from Cheyenne and walk every inch of track
from Ogden to Donner with a measuring tape, just to make
certain.