I do have SOME exposure to 0 gauge, as jhbSenior had a vast coarse-scale 0 gauge enterprise in his loft many years ago. It had a double track main line, a branch loop which returned as a reversingloop to the main line, and a separate branch line. All 1920s stuff. I used to "play" with it when I was 12-14. Sadly, in his late old age he dismantled it and sold the lot.
sorry about that- cant be adding a percentage to a ratio, my convoluted calculation needed another step- 1 / .864 = 1.157 then 43.5 x 1.157 = 50.3 = 1:50
But jhb stick with Ken's maths, it's simpler and I just had to much chocolate cake after dinner......
By my calculations the scale should be smaller than the 7mm, as you are trying to use the 32mm track to model 5' 3". Thus if 32mm track equates to the 1,600mm prototype, the scale must be 1,600 / 32 => 1:50?
I would agree with David - it's probably easier to construct track than to scratch build every element of the model in an unusual scale.
Ok, been there, got the t-shirt!
Correct gauge in 7mm scale is 36.75. Plain track simple, indeed the first piece I made was with code 100fb rail glued to card sleepers with contact adhesive.
Assume the the Blessington probably used FB rail so that combination could work on a diorama, but better with solder construction using copper clad sleepers. Marcway of Sheffield my source and they did my points too. At £60 each, they are around 25% more than Peco, but worth it, as being self isolating do not need switches and can be worked by wire in tube. Simples!
Honestly, JB, broad gauge is FAR easier in 7mm scale. Slater's wagon and coach wheels are easily moved out to 34mm back to back, while they do a 34mm loco axle as an extra. Everything else is the same as British outline, pretty much, so castings are available from Northamptonshire Models and several other suppliers. Join the Guild for all the trade knowledge and surprise your friends by telling them you have become a 'Gauge 0'...
Iain Rice's recent book 'Cameo Layouts' contains a wealth of ideas and inspiration, including track plans, with Gauge 1 diorama in five feet among them.
Such a project is a great way to have a dabble in 7mm scale, but beware, it is very addictive!