A gybe preventer, preventer, or jibe-guard, is a mechanical device on a sailing vessel which limits the boom's ability to swing unexpectedly across the boat due to an unplanned accidental jibe. During an unplanned accidental jibe (or gybe), neither the crew nor the boat is set up properly to execute a planned jibe.
A gybe preventer, preventer, or jibe-guard, is a mechanical device on a sailing vessel which limits the boom's ability to swing unexpectedly across the boat due to an unplanned accidental jibe. During an unplanned accidental jibe (or gybe), neither the crew nor the boat is set up properly to execute a planned jibe.
Source: Wikipedia "Preventer" · CC BY-SA 4.0
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