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No one was more unhappy than me when this country went to the metric system back in 1967, metric money and all but after 30 odd years i'm sold on it. When I started to do the calculations for my Garden Railway I was amazed to find out how simple it made things and I would suggest that even non metric people look at the benefits and consider doing all measurements and calculations in this system. For instance if you do your horizontal measurements in metres and your verticle in centimetres and divide one into the other the percntage gradient is automatic. Say you have a strectch of rail 23' or 7 m long which has to rise by 10" or 25 cm. Thence 10"(25cm) / 23' (7m0 = 25/7 = 3.6 %, what could be easier It is harder to do the conversion to metric than the calculation itself is true but just do the measurements in metric to start with, and voila your doing it easy. I would be interested to hear what others think of this idea. Regards Ian; Kawana Island Tropical Railway.
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