Diagrams Index . Home
7 mm/ft scale
B489, 490
NE 0-4-4T, Fletcher 'BTP' class/ LNER G6 class (5′ 3″ version) driving wheels.

5′ 3″ diam., 16 rect spokes, apparent tread 4″.
Hub 15″ face dia., 1″ out from the tyre (estimated), pin between at 11″.

Source: for the wheel balance weight outline - Locomotives of the LNER part 7, figs 180-183.

Casting: 36.8 mm tread dia., 32.1 i/d., hub 0.6 mm out from the tyre.

Casting prices and stock . NE loco sets, price list

Scan of a casting in a set for a NE 0-4-4T BTP/LNER G6 class.

Scan of casting B489 Scan of casting B490

Cross section diagram of casting B489
This example shows a tyre width of 3.5 mm for Gauge 0 Fine.
For Scale7 remove more metal from the back of the wheel to give a tyre thickness of 3.2 mm instead of 3.5 mm.


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1 May 2024