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7 mm/ft scale
SR 4-6-2 Bullied Pacific driving wheels.

6′ 2″ diam., boxpok welded from plate, 3½″ apparent tread, tyre thickness 5¾″.
Hub 16″ face dia., ⅜″ out from the tyre, pin between at 12″.

Source: Winston Churchill measured direct at York, August 1995.

Castings: 43.2 mm tread dia., 39.2 mm i/d., hub 0.2 mm out from the tyre, pin at 7.0 mm.

Casting prices and stock . SR loco sets, price list

Scans of a casting in a set for SR 4-6-2 Bullied Pacifics

Scan of casting B79

Cross section diagram of casting B79

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27 Mar 2013