... pesky 0.3mm of gauge widening off straight track, gentle curves and visible P&C work( 00-SF aka 4-SF, with flangeways around 1mm). RTL xx-SF is probably not going to come from the big players...but someone may yet surprise us... Regards, Rodney Hills posted: 12 Jan 2018 17:17 from: Andrew Barrowman Hi Rodney, It's not obvious from those renderings, but the gauge of that prototype is, in fact, 16.2 mm Cheers! Andy 2983_121238_040000000.jpg Last edited on 12 Jan 2018 17:39 by Andrew Barrowman posted: 12 Jan 2018 21:36 from: rodney_hills Andrew Barrowman wrote: Hi Rodney, It's not obvious from those renderings, but the gauge of that prototype is, in fact, 16.2 mm Cheers! Andy, Thanks for that. Yours is a most interesting project.... BTW, in 3 days time it will be 11 years since I set up the 00-SF Yahoo group as a focus for sharing information and experience and, ...