"Opal" 0-4-2 Tank locomotive.

"OPAL" is an 0-4-2 side tank of traditional British narrow gauge design and based on those engines produced by the Hunslet Engine Company of Leeds. Hunsiets first entered the narrow gauge market as early as 1870, supplying many side and saddle tank locomotives to ironstone and slate quarries, particularly in Wales.

The model represents a typical Hunslet with two side tanks containing feed water for the boiler and incorporating brass fillers.

Features include a generously proportioned brass dome (optional), twin safety valves, boiler bands, brass window frames, chimney top M (optional), whistle, name-m plates etc. In choosing the 0-4-2 wheel arrangement for these larger models, we have produced a locomotive which, because of the trailing axle, is able to negotiate curves of 15' or less, safely, whilst reducing the "tail wag" common on 0-4-0 locos with a long rear overhang.