sdmann posted:Jay,
Full length passenger cars are usually 85' over the couplers. Shortie cars could be 72'. Probably 80% of the full length and must negotiate 20" radius HiRail track with ease.
As for the general operating radius of Scale S Gauges, I don't know that answer. Need some feedback for that. Feel free to chime in.
Scott - China
Scott, the American Models Budd cars are 13-3/8" long, (about 71' scale feet long) not counting the diaphragms.
They negotiate R20 curves fine, but will scrape against the switch stand on SHS/MTH ScaleTrax R20 turnout. I don't know about Lionel's S FasTrack R20 turnout or traditional Flyer turnouts.
And of course, the HiRail cars don't couple as close as the scale versions:
Seems like scale 70' cars would be the target length for shorties would be my guess. Hope this is of some help.
Rusty