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I'm currently re-doing my layout with Ross Switches and GarGraves track.  However, I'm confused when designing my reversing loops.  I'm using O-42 for these loops, which with GarGraves track allows a 45 degree turn per section.  The Ross Switch (O-42) only has a 32-degree curved leg on it, which means I'm missing 13 degrees of turn.  I also noticed that GarGraves makes both transition track and makeup curves.  I will also need to finish the curve on one O-54 switch, which has a 30-degree curved leg on it.Can someone please help this confused railroader on which track to use to make the curves line up? 

 

WB Trainman

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There's no real set answer to this, because there are a number of variables. Some amount of straight track and at least one cut curved section will probably be required to complete the loop. Please don't rely on a computer to do this calculation for you. Maybe the best way to do this is to just get all of your pieces and lay them out, The picture as to what is needed will become clearer.

Please note:

 

The Ross transition pieces mentioned above are designed to bring the curved part of the switch back to parallel with the straight part of the switch.  The TR35, for example, is designed to give you 11 degrees of some unspecified curve radius that will bring the switch back to parallel with the straight part at a 3.5" center.

 

For what you are doing, you will probably have to cut an O-42 curve piece so that the piece you desire makes up only 13 degrees of the 45 degree arc represented by a full piece.

 

Chuck

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