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Re: SD39 - Low gearing?
Author: OPRRMS
Date: 01-28-2010 - 12:36
SP5103 Wrote:
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> Lower gearing? Can anyone actually confirm that
> SD39s had 65:12 or 64:13 gearing?
First I've heard of it. Seems highly unlikely.
> There would not
> be any advantage to them having low gearing in the
> service they were in.
And actually, a disadvantage given the problems it would cause with other units.
> I believe that they were initially ordered with
> the intention as using them primarily as Tehachapi
> helpers. IIRC - The first order was supposed to
> have dual control stands in addition to the full
> light packages and plows on both endss - making
> them very suitable to run as single rear helpers.
First I've heard about dual control stands.
> (Weren't some RSD-5s similiarly equipped for the
> same reason?)
5505-5507 initially assigned to the SD&AE had dual controls, which were carried over to 7005-7007 for some unknown reason. Baldwins 5277 and 5278 ordered for use on the Oroville Branch were listed as also having dual control stands.
-------------------------------------------------------
> Lower gearing? Can anyone actually confirm that
> SD39s had 65:12 or 64:13 gearing?
First I've heard of it. Seems highly unlikely.
> There would not
> be any advantage to them having low gearing in the
> service they were in.
And actually, a disadvantage given the problems it would cause with other units.
> I believe that they were initially ordered with
> the intention as using them primarily as Tehachapi
> helpers. IIRC - The first order was supposed to
> have dual control stands in addition to the full
> light packages and plows on both endss - making
> them very suitable to run as single rear helpers.
First I've heard about dual control stands.
> (Weren't some RSD-5s similiarly equipped for the
> same reason?)
5505-5507 initially assigned to the SD&AE had dual controls, which were carried over to 7005-7007 for some unknown reason. Baldwins 5277 and 5278 ordered for use on the Oroville Branch were listed as also having dual control stands.
