'RUTH ANN' was born out of my desire to build a successful Mamod SL based 6-coupled tank engine. PJLW#05 was the result! This was another engine build using aftermarket parts including a full Dream Steam boiler upgrade and BIX gas firing. I made use of some IP Engineering plain disk wheels with the centre drivers being standard Mamod wheels. The Mamod wheels retain their flange and have enough side drift to negotiate tight radius curves without a problem. The first public outing was on the wonderful Birches Barn Extension Railway at the Midlands Model Engineering Exhibition October 2012. 'RUTH ANN' has enjoyed many outings since then and continues to be one of my favourite engines to display and run. The upgrade cylinders are kept well oiled with a Roundhouse (LUB) inline lubricator.