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10 mm/ft scale
BR driving wheel for the 4-6-0 4MT, 2-6-4T 4MT and the LMS Ivatt 4F/4MT.

5′ 8″ diam., 18 oval spokes, vee inner rim, 3½″ apparent tread.
Hub 15¾″ face dia., level with the tyre. Pin between at 14″.

Source: class 4MT No. 80151 measured direct at Chappel in 1995.

Casting: 56.7 mm tread dia., 50.9 mm i/d., hub level with tyre.

Casting prices and stock.   Prices of loco sets: BR . LMS

Scans of castings in sets for a BR 4-6-0 4MT with prototype photos, also:
BR 2-6-4T 4MT . LMS 2-6-0 4MT . LMS 2-6-2T 4P

Scan of casting T73

Cross section diagram of casting T73

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27 Mar 2013