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1:22.6, Gauge 3
X61
GN and some CR leading and tender wheels.

4′ 0″ diam. (originally 3′ 11″) , 12 rectangular spokes, low slightly humped inner rim.
Tyre width originally 5″ measured in 1995 as 5½″.
Hub: 12″ face dia., ¾″ out from the tyre.

Sources: measurements direct from preserved loco No. 1 at NRM, York, June 1995.
The Stirling Singles, Leech and Body, David and Charles (1965), page 53. (Tyre width).
Great Northern Locomotive History, RCTS., vol. 2 page 164. (Wheel diameters).

Casting: 53.9 mm tread dia., 45.0 mm i/d., hub 0.8 mm out from the tyre.

Casting prices and stock . Gauge 3 loco sets, price list

Scan of a casting in a set for a CR 4-2-2.

Suitable for the Gauge 3 Society 2010 minimum tyre width of 6.8 mm, or the earlier standard of 8.0 mm.

GN tender wheels. A note in the RCTS volume 2, p. 210-212 states that the tender with the preserved Locomotive is from another loco. It was previously used with an old Hawthorn 0-4-2 of 1849. Casting V61 is modelled from direct measurements of a bogie wheel of the preserved loco. The hub only projects by ¾″ from the face of the tyre and is also suitable for a standard Stirling tender wheel.
Scan of casting X61

Cross section diagram of casting X61


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