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Is there a Mathematical Formula for Widening Gauge on Tight Curves ?

Posted: Mon Apr 30, 2018 3:08 am
by underworld
Is there a Mathematical Formula for Widening Gauge on Tight Curves... or at least some way of rough figuring how much to widen the gauge on a tight curve ?
I have an LGB 20140 Feldbahn Loco that I'm in the process of upscaling to 7/8ths. It will be 45mm track, and the wheelbase of the 20140 is about 45mm. I want to build a small layout that can easily be transported in the seat of a smaller Car. I want to use it to attract more new people to the hobby, and to Show people that large scale can be done indoors, even with a small amount of space
8)

Thanks !

Re: Is there a Mathematical Formula for Widening Gauge on Tight Curves ?

Posted: Mon Apr 30, 2018 6:48 am
by chris stockdale
I know that 8" (yes, really) has been used with, I think about 1.5mm gauge widening. I don't know of a formula

1. Since you'd have to make your own track then try a 1mm, then a 1.5 etc

But...

2. All the LGB stuff will go round their R1 2' radius anyway - and that's a fairly small radius for a large scale piece of kit. There's a zillion people using LGB already, do you need to push the radius boundaries any further? After all, to encourage those seeing a demo you want to be able to say, 'And this runs on standard track straight from the shop, rather than, 'And you'll have to make your own track.' Make it easy for them to think: 'Ooh, I could do that'. That's what draws them in.

Cheers,

Re: Is there a Mathematical Formula for Widening Gauge on Tight Curves ?

Posted: Tue May 08, 2018 9:25 am
by southpier
I have to agree with #2.