Hi Wes ...
Sorry for the off-topic question but could you detail some of the advantages you mentioned?
I know the Great Northern Railroad used electric locomotives through mountain passes in Washington State because electrical locos could out pull steam locomotives on the steep grades encountered there.
Thanks!
Al
>> In NYC up into the 70's at least, power for two of the subway
>> divisions (BMT and IRT) was generated at 25Hz but converted to DC in >> the field.
> Some electrified intercity railroads in the Northeast used 25 Hz
> power. There are, or at least were in the past, some advantages to 25
> Hz power for running locomotives. (Some railroads in other parts of
> the world use or used 16-2/3 HZ power.
(Many deletions from here down!)