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7 mm/ft
LNER disc tender wheel.

3′ 9″ diam., disc. 4½″ apparent tread.
Hub 12½″ face dia., 1″ out from the tyre.

Source: B1 tender measured direct at Loughborough in 1995.

Casting: 26.3 mm tread dia., 20.8 mm i/d. Hub 0.6 mm out from the tyre.

Casting prices and stock . LNER loco sets, price list

Scans of a casting in sets for LNER Thompson A2/1, 6 wheel tender . V2

Scan of casting B66

Cross section diagram of casting B66
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