3" and 4 1/2"? measure the diameter of the line. I would think 3/4 is the
heaviest you need. Or heaviest I need.
"Moores family" wrote in message
...
To set the scene-

I've just bought (again, but that's another story) Tropic Bird, a
particularly nice H28 which I have moored at a local marina. I've had her
there for 2 or 3 weeks now, using the mooring lines that came with her- a
couple of 4-1/2" and a couple of 3". I've been going to get a new set of
lines as the old ones are a bit tatty. I thought that 4-1/2" may have been
a bit oversize so I was going to use 3" all round- 2 bow lines, a stern
line and a spring.

Well they're predicting a bit of a blow overnight- 40 knots or so, so I
thought I'd go and check that everything was OK. Everything was, of
course, but when I looked at the 3" spring, which would take the main
force, in the light of a 50 knot blow, my lesson was immediately learned-
I doubled it and made a mental note that peace of mind in a blow is worth
the lines looking oversize when everythings balmy. 4-1/2" all round it
is...
JM