I spent ages with a calculator and a list of scantlings yesterday doing this!!!!I read on the site some time ago that someone was having trouble with scale rope size. I am posting a table for model makers to use for converting rope size. It is ideal to have a miniature ropewalk to be precise. I have built my own ropewalk and it works quite well.
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It seems that I read this before as well. That the shipbuilders went by the circumference - but do not take my word on this - and I can not remember where I read this. It might have been in the Wofran zu Mandel book.Circumference, as opposed to Diameter.