rolling stock consists of 28 4-seater 'sit-in' carriages plus 4 further coaches that are articulated into twins. all passenger carriages and locomotives are fitted with vacuum brakes. trains hauled by the smaller engines are generally made up of three carriages to accommodate 12 passengers; the more powerful locos can haul four carriages, carrying up to 16 passengers. the all-up weight of a 3-car train - without the engine - is estimated on average to be about 1 tons or 1270 kg. a varied collection of freight and engineering stock may also be seen.