Talk:EMD FP7
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[edit] FP7 and FP9 vs E-units
If the FP series were intended as passenger units, why did EMD produce models that, on the face of it, competed with their own E-series locos produced at the same time? Were the FP's preferred by roads with a lot of mountain climbing, or was there some reason to not want the six-axle units? Any theories?Fawcett5 21:09, 4 Apr 2005 (UTC)
- These are my suppositions, not checkable fact, so we should find some references before jumping off on it. But, I think, the FP series were intended as dual-service units, as fully capable of freight service as the corresponding F unit. They were just a lengthening for extra steam generator water / fuel capacity. Additionally, it is well known that railroads who had to climb mountains with heavy loads preferred F units to E units for the purpose, because of more traction motors (less possibility of burnout) and all the weight being on driven wheels. They were also used on short-haul services, where they would have been more practicable than an E unit.
- We should see if we can find any references that state this. —Morven 21:25, Apr 4, 2005 (UTC)
- OK, sounds plausible if you can find some refs. Such units seemed to be more popular in Canada- CP and CN also operated ALCO/MLW FPA-2 and FPA-4 units that were, I think, the same idea - and as far as I know these were only in Canada. Come to think of it, Canadian roads were the only ones to go with a four axle variant of the passenger C-liner (all others had a A1A rear truck combined with a B-B on the front). Hmmmm. Fawcett5 23:22, 4 Apr 2005 (UTC)
