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.
4′ 3″ diam., 13 rectangular spokes, rectangular inner rim, apparent tread 3½″.
Hub 10½″ face dia., 1½″ out from the wheel. Pin between at 10". (Some dimensions are estimated from photos)
Casting: 29.8 tread dia., 25.6 i/d., hub 0.6 mm out from the tyre. Pin at 5.8mm.
Casting prices and stock . Trinidad loco sets, price list
Scan of a casting in a set for Trinidad 4-4-0T, early.
Weights are plate weights and are not cast-in.
10 July 2021