... for this example. That makes for a typical curvy narrow-gauge crossover. I also shortened the vee rails by one timber, although this doesn't change the geometry. I have set the adjacent track centres for this crossover to 9ft (36mm) although I don't know how typical that would be. It assumes your rolling-stock is no wider than say 7ft-6in? As you can see, the radius is 591mm, well above your limit, but the turnouts are still the same length as the Peco turnout. 2_150818_230000001.png 2_150818_230000000.png .box file attached below. regards, Martin. Attachment: attach_2467_3044_irish_4mm3ft_24_5 .box 197 posted: 15 Jul 2017 14:08 from: Martin Wynne p.s. For example, here is a longer curved turnout. 1:32 short switch, 1:8 crossing angle. Curved onto 1000mm outer radius. Inner radius is 604mm: 2_150905_260000000.png Martin. Parts of Templot Club may not function unless you enable JavaScript (also called Active Scripting) in your browser. Templot Club> Forums> Baffled beginners> OOn3 track comparision about Templot ...