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Search results for: 00_b5_geo.png
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... turnout. The read-outs at C and D show the the radius for the switch and the turnout section respectively. You can see that because it is a funny B5 size, D is much smaller than C, and is also the radius showing at A. Here is another diagram showing the difference between the switch radius and turnout radius: semcu_sw.gif You can read more about this at: http://www.templot.com/martweb/gs_realtrack.htm There are two more radius figures in the data, if you scroll further down: 00_b5_geo.png The internal geometrical radius is the "average" radius between the switch blade tips and the nose of the V-crossing (frog). The external geometrical radius is the "average" radius between the switch blade tips and the exit from the V-crossing (frog). This is often called the substitution radius. When you buy ready-made commercial turnouts it is often these radii which are quoted, and you can see that there can be a big difference between them and the actual radius in the rails ...
... approximate 32" while the diverging radius would be 30". Is there a way to set each track's radius and then have Templot calculate the appropriate frog ratio, i.e. 1:10, 1:12, etc. for a defined scale and gauge? Hi Bill, What you do is first set the required outer radius. Then adjust the turnout size (V -crossing angle/ frog ratio) using the F5 size mouse action, until the desired inner radius shows in the information panel as the substitution radius: 00_b5_geo.png Note that the actual radius in the rails is likely to be smaller than this. If that's important, watch the minimum radius now box instead. There is more about all this, and a video link, in this topic: topic 397 Is there such a thing as an asymetrical wye turnout? As an example, a right hand diverging track at 32" radius and a left hand diverging radius of 30". If so, how would one create such a template using Templot? Yes, exactly the same way ...
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