In the course of investigating how to draw correct scale turnouts I
came across a turnout calculator which is available from this site:
which also contains lots of
other useful info.
I note there is an entry for Scale 7 (but not any other 7mm scales) so
thought it might be worth contributing data for O-14.
It seems quite easy to add new entries to the scales and gauges sheet
which seems to have both imperial and metric measurements for gauge
etc. I am proposing the following for the metric with the imperial
being simply these converted to inches.
Gmax: 14.40 (suggestions welcome)
Cmin: 13.00 (CN on our standards)
Smax: 12.00 (OC on our standards)
Pmax: 12.50 (suggestions welcome)
I think the letters used are based on the NMRA ones (see
) and I have
tried to correlate them with our standards and make some stabs at the
2 missing values, but would appreciate some feedback from those the
Furthermore I have not yet tried using the figures in a CAD program. I
have had 3rd Planit for some time which I use for general design but
have yet to try it to produce point templates using the calculated
values. I would be interested to hear of other users experiences with
this or other products e.g. Templot etc.
If anyone wants a copy of the spreadsheet with the additional line
then please email me direct.