Just been reading through the Corris Railway guidebook. I notice it says that the manrider they use on works trains used to work at the Centre for Alternative Technology. I believe this was on a circular, 2ft gauge line with a homemade wood-fired loco, which operated for a couple of years in the early 1990s. This is vague information that I got from talking to volunteers at Corris. I wonder if anyone has any more info, pictures etc. The only railway at CAT now is the broad gauge funicular. I would also be interested to know what happened to the narrow gauge loco.