for GWR 4-6-0 Castle class, with early wheels at 7 mm/ft
A full set consists of 4 x B75 bogie wheels, 6 x B185 drivers and 6 x B20, tender wheels.
FIRST LOCOS AS BUILT: Use B185 for the outer drivers and B186 for the centre drivers
as in the prototype engine
No 4073 Caerphilly Castle (Photo in Russell, A Pictorial record of Great Western Engines vol. 2, p. 150).
Full sets consist of 4 x B75 leading, 4 x B185 outer, 2 x B186 centre drivers and 6 x B20 tender wheels.
B186 needs a new pattern and moulds.
SOME LATER LOCOS: Use B186 for all drivers as in 5022 Wigmore Castle (Photo in Russell on same page).
Full sets consist of 4 x B75 leading, 6 x B186 centre drivers (with straight sided hubs) and 6 x B20 tender wheels.
The prototype driving wheel weights are surface mounted plates, and are not cast in.
Links: Home.
Casting prices and stock:
B20 .
B75 .
B185.
Wheel data:
B20 . B75 . B185.
GWR loco sets price list
Full size for 103 dpi screens. Bare weight c. - gr