Just to satisfy my curiosity, and confirm what I have been saying, I dug out my most recent copy of the NMRA "The Official Guide of the Model Railways". This book is, or at least used to be, the central publication of the NMRA.
I was a little surprised to see that my "latest" copy is No. 13, published in July, 1972.
I also noted that there is a paper clip (rusty) marking the turnout specifications section. You can use this data to create your own turnout templates for any size turnout you might want.
I visited the NMRA web site and found that you can download the "Recommended Practices" from the site. The RP for turnouts is RP-12.
Last edited on Sat Nov 1st, 2014 10:43 pm by Reg H