Hi Smithy
Probably too late at this point but I just now found the following rigging warrant for the Alert 1777 at RMG. There are two pages of detailed information.
The dimensions for the ropes includes circumference in inches and lengths in fathoms.
Allan
Rigging Warrant for Kite (1764) and Alert (1777)
A sheet folded in two recording handwritten details of the rope thicknesses and lengths for the various rigging parts, as well as the type and size of the blocks for rigging Kite (1764), a 4-gun Cutter, and later used for Alert (1777), a 10-gun Cutter (later classed as a sloop but still cutter-rigged).
The first page is below
View attachment 489455
Oh thank you for thinking of me Allan.
I don't really work to such tolerances. I'm using whatever looks about right from my Grandma's sewing box. Well, actually my box of leftover line from other kits plus a handful of bought in Gutterman polyester but you get the idea.
I might actually be slipping into building a piece of furniture .