Rupert or Maureen,
This was done to make the locomotives lighter to target these units for service
on light rail branch lines.
Russ
----- Original Message -----
From: "Rupert and Maureen" <gamlenz@i...>
To: <BRHSlist@yahoogroups.com>
Sent: Sunday, 14 April, 2002 00:44
Subject: [BRHSlist] SD-9's
> Listers
>
> The group of SD-9's #440-459 was built in Augsut/September 1957 with only a
> single set
of controls (on the right side of the cab). Anyone know why?
>
> Some immediate thoughts were centred on economy and experimentation, but I
> would have
thought that the reduction in cost would have been insignificant in the overall
cost of
the units, so economy doesn't seem a likely reason. I don't think this could be
an
experiment or it would have been tried out by using only one set of controls on
a unit
from the previous series, and buying 20 "experimental" units seems unlikely.
>
> The "next" group of SD-9's - #330-339 with two sets of controls and just 270
> lb
heavier - was built in October 1957 compared to the August/September dates for
the 440-459
series. However, the builder's numbers for the two groups show the opposite to
be the
case.
>
> Operationally, being uni-directional would appear to be a disadvantage unless
> they were
MU'ed back to back.
>
> Any suggestions? And were any converted later to two sets of controls?
>
> Rupert
>
>
> [Non-text portions of this message have been removed]
>
>
>
>
>
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