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7 mm/ft scale
B181
NE 4-4-2 Z/ LNER C7/2 trailing wheels and Drummond LSWR 6 wheel tender wheels.

4′ 0″ diam., 12 oval spokes, hump inner rim, apparent tread 4″.
Hub 12¾″ face dia., ¾″ out from the tyre.

Casting: 28.0 mm tread dia., 23.1 mm i/d, hub 0.4 mm out from the tyre.

Casting prices and stock . NER loco sets, price list

Scan of a casting in a set for a NE 4-4-2 V/LNER C6 class, NE 4-4-2 Z/LNER C7 class, LSWR 4-6-0 Lord Nelson (6 wheel tender), LSWR 4-4-0 L11 unweighted (6 wheel tender).

Scan of casting B181

Cross section diagram of casting B181
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.


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27 Mar 2013