... a long fast turnout, i.e. no longer than say 1:12. On the other hand short 9ft and 10ft loose-heel switches are very unusual in running lines. Ditto V-crossings less than about 1:7. So probably somewhere between 12ft and 18ft for the switch with a V-crossing angle somewhere between 1:7 and 1:12. I think I can count 33 timbers between the switch toe and the V-crossing, so this will be a useful guide to the turnout length. gimp3.png This is a crop of the turnout area from the original. I have added some guide lines in green. In addition to the rail edges, the marks on the left from top to bottom are the heel (pivot) location, the end of the blade planing, and the blade tip (point). On the right the mark is the end of the blade planing (where the rails diverge). All these are as best I can judge on a rather indistinct photo -- in particular the end- ...