Prevent your roller-furling sail from unfurling
Issue 50 : Sept/Oct 2006
Considering the number of roller furlers in use around the world today, the accidental unfurling of a sail on a moored or berthed boat is a remarkably rare event. But it does happen and often with devastating results. I know of one incident where a yacht’s headsail suddenly unfurled and then sailed its host around a swing mooring for days before being tamed. Damage to the boat and neighboring vessels was considerable, and the sail had shredded in place.
Many furlers do not have a drum-locking device, leaving their furled state entirely dependent on the condition and security of the furling line. If this carries away, a secondary means should prevent the sail from unfurling. This can be achieved with a simple line tied around the sail (shown above). Place it as high as possible.
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