Robert or Karen Swarts wrote:
I am about to replace the halyards and sheets on my 25' sailboat. I have
measured the old lines with a caliper, and had my neighbor repeat the
measurements to be sure they were consistent. The result is that the lines
measure between 5/16 and 3/8 for the halyards, and between 3/8 and 7/16 for
the sheets.

Does anyone know if old, weathered lines tend to measure more or less than
their nominal diameter? I.e., are these 5/16, 3/8 or 7/16?

BS


Good question! I would have assumed that they would get thinner but
3/8" halyards on a 25' boat seem pretty overly large. I'd pick 5/16"
for halyards and 3/8" or 7/16" for sheets. Breaking strength isn't a
problem, but ease of fitting through sheaves is important.

Evan Gatehouse