Will Protocraft's RTR couplers negotiate 48" curve radii when installed on freight equipment over 50'?
Since these couplers only have 1 shank length available,I'm wondering if they'll be able to be used successfully on 89' autoracks,65' bulkhead lumber cars & 60' Atlas 25,500 gallon tankers.(?)
I'm planning on using 48" curves on sidings & yards,but 54" & 50" curve radii on Mainlines.
Thanks to everyone in advance for your help.
Al Hummel
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O Scale West is this week and Norm will be there (as will I 
). If you can make it to the show, he might be able to help you with your question.
I do use couplers similar to Protocraft's RTR, but my curves are larger than 48".
Charlie
Thank you Charlie. I'm in Indiana so no I can't make the West Show,or any others for that matter,as I'm in an area that's an O Scale "desert."I've asked Norm about this months ago. His reply wasn't satisfactory at all. He sort of sent my question right back at me,as I asked him the same question as I posted here & he said my success would depend on track radius & shank length. Well with only 1 shank length available, there's not anything I can do about that short of cutting metal & custom fitting it to his coupler head. I'm also limited on track radii. So in the end, I had the same question.I sort of get the idea that coupler was meant for the steam era,not modern diesel.Thank you for your input.
Al Hummel
Norm also goes to the Chicago Show. That's not that far from Indiana.
They have more than one shaft length in their couplers but with the longer shanks you need to assemble them yourself. Cut in a small piece of a paper clip to the top of lift pin and it will be magnetic.
You don't have to go anywhere to get information presuming you don't communicate by drums or smoke signals!
e-mail: norm@protocraft.com or phone: 707-935-7011
Simon
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