Minorado Bay, Madagascar, October
2012. For
three days the wind was blowing consistently around 40
knots, gusting to 45. Although the anchorage appears
well protected from the east, conditions became
surprisingly difficult. We were anchored in 4 metres
less than a mile from shore, but even on that short
strech the wind produced a nasty chop, probably because
it was blowing towards a westerly swell. The holding was
good in sand, but all boats encontered problems with the
snubbing lines for the anchors.
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sv Priscilla,
USA |
sv Contrails,
USA |
In
seas like this the foredeck pitches up and down through
many feet, gaining considerable momentum in the process,
making the windlass subject to repeated shock loading when
the bow comes up. Windlasses are not designed to handle
heavy snubbing loads and need to be protected. Therefore a
snubbing line is important. We have a rope attached to the
chain about two feet ahead of the bow and cleated to a
secure cleat on deck, leaving a few feet of chain to
dangle (see photo below). At Minorado Bay we broke our
lines five times!
The
problem was not with the breaking strength of the rope,
but with the friction at the fairlead where the rope
angles. Even though we used reinforced hose to minimize
chafe, our 20 mm 3 strand braided mooring line broke in
less than one hour (see photo below). We replaced this
line with lines made of old sheets and those worked
better. A heavy nylon line would probably be best.
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Clockwise from top left: * A
snubbing line from starboard cleat, (later we had
one line from from each side) . * This line broke in
one hour. * Reinforced hose protection.
* Minorado Bay looks well protected from the east. *
The new genoa is dirty from the desert dust and
sand.
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