Minimum Radius for coupling

[Loco722]

Hello there,


I was going to start under a new topic, but since it was in regards to curve radius, I rather thought to post it under this thread.

jward mention about #4 switches having an effective radius of more than 22", I would like to know if there is any read up about it on this or any other website of the number of the switch i.e #4, #6, #8 etc etc and their effective radii? Or if someone could give me an idea about it as I've been using only 18" switches to date.

And thanks ACY and Doneldon for the advise/input !


Thanks again!


Loco722