Many of us have been watching the progress of Ray McMahon’s class B Darjeeling & Himalaya locomotive each year at the Harrogate exhibition. This year saw the model well on the way to completion, and Ray reckons it will be compete and painted ready for next year’s event. Ray designed the engine to suit 3 1/2in gauge from 1913 General Arrangement drawings and photographs. These locomotives were built by the North British Locomotive Works in Glasgow, among others. One is preserved at Beeches Light Railway in Oxfordshire, others still steam in India. The model has taken five years so far and uses very few castings. The cylinders, for example,  were carved from cubes of 3 1/4in cast iron.