I know about the five RS2s which were EMD repowers, but I'm wondering if the Frisco ever leased or had run-throughs which would have utilised RS or RSD units in the 60s or 70s? I'm aware that they occasionally leased shortline motive power. cheers, Ben S.
I do not not believe that the Frisco used foreign road, ALCO road switchers on any its run-through trains, nor am I aware of any leased motive power from any shoreline railroad.
Ben, from discussions I have heard by railfans much older than me, the general reliability of the Alcos probably would have kept them on home roads; also the Frisco would not have been interested in dealing with equipment that they no longer used or maintained, especially in the 70's.