Templot Club Archive 2007-2020
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posted: 15 Jan 2011 22:51 from: polybear click the date to link to this post click member name to view archived images |
Hi all, I've just been asked the following question via email and I'm unsure of the answer: "What would be the practical minimum radius to use to maintain a proper clearance between passing trains?" The track gauge is 00-SF (16.2mm). Any thoughts please? Many thanks. Regards, Brian |
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posted: 16 Jan 2011 03:31 from: Templot User
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The track gauge itself is of no great significance. The smaller the radii of the adjacent tracks, the greater the spacing between them needs to be. The length of the items of rolling stock will also have a bearing. 70ft stock on adjacent tracks will require a greater spacing than, say, early 45ft coaches because of the centre- and end-throw. HTH. Dave |
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posted: 16 Jan 2011 15:47 from: dkjosness
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The NMRA gives some recommendations here: http://www.nmra.org/standards/sandrp/s-8.html |
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posted: 16 Jan 2011 18:22 from: mike47j click the date to link to this post click member name to view archived images |
For a 4mm scale BR Mk1 coach 63'5" long, I calculate the following overhangs, all in mm. Radius Centre End Total 500 8.7 7.4 16.1 600 7.3 6.2 13.5 700 6.2 5.3 11.5 800 5.4 4.7 10.1 900 4.8 4.1 9.0 1200 3.6 3.1 6.7 1500 2.9 2.5 5.4 1800 2.4 2.1 4.5 Mike Johnson |
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posted: 23 Jan 2011 20:22 from: polybear click the date to link to this post click member name to view archived images |
Hi all, Many thanks for the replies - I've forwarded the above information accordingly. Many thanks for taking the time to reply to my query. Regards, Brian Tulley |
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