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7 mm/ft scale
B39, B40
LNER 4-6-2 A1/A3, B17 driving wheels

6′ 8″ diam., 20 spokes, rectangular inner rim, apparent tread 4¾″, tyre thickness 5⅜″.
Hub 21″ face dia., pin between at 13″, hub is level with the tyre.

Sources: No 4472 measured direct at Llangollen in Feb. 1995.
O.S. Noch, British Locomotives of the 20 th Century, vol. 1: page 219, detailed works drawings.

Casting: 46.7 tread dia., 41.1 i/d, hub level with the tyre, pin at 7.6 mm.

Casting prices and stock . LNER loco sets, price list

Scans of castings in sets for:
LNER 4-6-2 A3 with prototype images . 4-6-0 B17 (LNE tender).

Scan of castings B39, B40

Cross section diagram of castings B39 and B40


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27 Mar 2013