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1:32 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: 58.74 mm tread dia., 53.4 mm i/d., hub 0.3 mm out from the tyre, pin at 9.52 mm.
Measured tyre widths for exact scale models at 1:32, 5¾″ = 4.56 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 P79
Scan of casting P79 scale
Machined with scale flanges

Cross section diagram of casting P79

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27 Mar 2013