This example shows a tyre width of 3.5 mm for Gauge 0 Fine.
For Scale7 remove more metal from the back of the wheel to give a tyre thickness of 3.2 mm instead of 3.5 mm.
6′ 3½″ diam., 19 rectangular spokes, apparent tread 4¾″.
Hub 17½″ face dia., 1¾″ out from the tyre. Pin at 12″
Source: Works drawing in Tatlow, A History of Highland Locomotives, part 1, fig. 32.
Casting: 44.0 tread dia., 38.5 i/d., hub 1.0 mm out from the tyre, pin at 7.0 mm.
Casting prices and stock . HR loco sets, price list
Scan of castings in a set for a HR 4-4-0 Loch.
27 Mar 2013