Mooring failures

[boatropes]

rope-chain-swivels

An excellent thread, many good contributions. As a rope specialist you would expect me to promote rope for permanent moorings, but .......I never have done. When asked for advice I normally recommend an all chain set up with a nylon rope snubber to give some ease to bow fittings. (chain sellers please thank me)
This thread simply confirms all my concerns about conventional ropes and indeed imported swivels.

[ In limited circumstances though I do provide doublebraid nylon (US spec) often fitted with chafe tubing and spliced thimble eyes/loops according to the set up. Or just the rope materials, thimbles and Selma splicing fids.]

I am reminded of Noggin the Nog's long running argument with Graculus about materials for a flying machine: Leather! Feathers! Leather! Feathers! ......
Rope! Chain! Rope!............. here we go again.

 

[SHUG]

My mooring is in 20m repeat 20m and after the ground tackle, consists of chain to deal with the tidal range then rope to keep the weight down and then chain to the buoy to prevent propellor cutting.
The problem with deep water moorings are quite different those for drying moorings.....DISCUSS!!!!!!!

 

[alahol2]

The best fore and aft mooring I ever had consisted of a very heavy (1 1/4") studlink ground chain with 50mm nylon risers at each end. They took me a week of hard work to splice long eyes in each end but they lasted for 10 years with absolutely no visible wear top or bottom. The big advantage was that, being so light, they required no buoys other than pickup buoys on the strops. The only downside was that they grew a fairly hefty covering of weeds every year. If I can source some more of this rope at a sensible price I will do the same for my current mooring.