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′ 10″ diam., 15 oval spokes, rectangular inner rim, apparent tread 3½″.
Hub 15½″ face dia., 2″ out from the tyre, pin in line at 11″.
Measured direct from the preserved loco at Chappel in April 1994.
Casting: 33.8 mm tread dia., 28.0 mm i/d., hub 1.2 mm out from the tyre, pin at 6.4 mm.
Casting prices and stock . GER loco sets, price list
Scan of castings in a set for a GER L77/LNER N7/1, 4, 5 (radial), GER L77/LNER N7/2,3 (pony), with prototype photographs.
27 Mar 2013