On most North American railroads, Turnouts up to size #15 are common and on higher speed lines, #20 turnouts are used. On a few really higher speed lines, #24 are used. I encountered a problem when I used #20 turnouts as required at some locations on the CSX Mainline Sub., Louisville, KY to Nashville, TN and when I placed those turnouts there were no blue poles showing, so I figured all was good, well, it wasn't.
Some time ago, Eric mentioned that the instructions for M-tracks left out the need to insert short tangent pieces between the points & frog of #20 turnouts. And I also accidently discovered a sort of fix for this. If you use #15 points with #20 frogs, you can easily eliminate the staggered rails that occur if you fail to insert those small tangents. And it was hard to fix the issue I made for myself until I discoverd something else. If you made a mistake and did not insert extra pieces you may get a lateral shift of the track when you go back and insert those pieces. The solution to this is to insert the extra pieces ONLY ON THE TANGENT route first. I found that a 9.3m piece was required. So put these on the tangent side and I found that there is then no lateral shift. After the tracks are in place on both end of the turnout, go back and do this on the diverging route. I found that this also worked with crossovers.
If you are studying Google Earth and wondering about size, AREMA (Railroad Engineering organization) states that #20 point to frog distance is 156 feet, and #15 is 111 feet. You can use the GE measuring tool to determine these values. I haven't tried anything with #24 turnouts because no route that I am copying seems to have them. Routes under construction include, but not limited to: L&N Mainline Sub., L&N CC Sub., L&N KD sub., L&N CV Sub., L&N EK Sub., L&N Henderson Sub., L&N S&NA Sub. Clinchfield Kingsport & Blue Ridge Subs., new versions of 2 oldies, Camas Prairie, Milwaukee Road line from Marquette, IA to Canton, SD. Chessie System Big Sandy, Kanawha, New River, and Hinton to Clifton Forge, VA. Some I will release as bare essentials, while others will have more detail. Lastly, my son-in-law knows to upload all of my routes if I get my last Form A & Running orders before doing it myself.
Jerry Sullivan
Some time ago, Eric mentioned that the instructions for M-tracks left out the need to insert short tangent pieces between the points & frog of #20 turnouts. And I also accidently discovered a sort of fix for this. If you use #15 points with #20 frogs, you can easily eliminate the staggered rails that occur if you fail to insert those small tangents. And it was hard to fix the issue I made for myself until I discoverd something else. If you made a mistake and did not insert extra pieces you may get a lateral shift of the track when you go back and insert those pieces. The solution to this is to insert the extra pieces ONLY ON THE TANGENT route first. I found that a 9.3m piece was required. So put these on the tangent side and I found that there is then no lateral shift. After the tracks are in place on both end of the turnout, go back and do this on the diverging route. I found that this also worked with crossovers.
If you are studying Google Earth and wondering about size, AREMA (Railroad Engineering organization) states that #20 point to frog distance is 156 feet, and #15 is 111 feet. You can use the GE measuring tool to determine these values. I haven't tried anything with #24 turnouts because no route that I am copying seems to have them. Routes under construction include, but not limited to: L&N Mainline Sub., L&N CC Sub., L&N KD sub., L&N CV Sub., L&N EK Sub., L&N Henderson Sub., L&N S&NA Sub. Clinchfield Kingsport & Blue Ridge Subs., new versions of 2 oldies, Camas Prairie, Milwaukee Road line from Marquette, IA to Canton, SD. Chessie System Big Sandy, Kanawha, New River, and Hinton to Clifton Forge, VA. Some I will release as bare essentials, while others will have more detail. Lastly, my son-in-law knows to upload all of my routes if I get my last Form A & Running orders before doing it myself.
Jerry Sullivan




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