Alfredo Contaldovidéo
What is a SELF-TACKING JIB ⛵ Pros and Cons and how it works on a sailboat ⛵
30 avril 2026 · 11 min · 4K vues · Gulf of Naples
Sailboat bow slicing through waves under blue sky
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A self-tacking jib works via a transverse track mounted on the coachroof forward of the mast, with a single sheet running through a block on a ball-bearing car that slides freely across the track.▶ 1:24 When tacking, the jib crosses from port to starboard automatically — no crew needed to ease or trim a sheet, and no "ready about" call required.▶ 2:47 Alfredo Contaldo demonstrates three solo tacks in the Gulf of Naples, showing the sail transfers without any sheet handling.▶ 3:43 The key trade-off is sail area: because the track sits forward of the mast, there is zero overlap, making the self-tacking jib far smaller than a 130–150% genoa.▶ 7:01 Designers compensate with a larger mainsail and longer boom.▶ 6:06 Trim options are also limited — only sheet tension is adjustable, eliminating the fore-and-aft car positioning that controls leech tension and draft position on a conventional headsail.▶ 8:05 On downwind points of sail the small jib is blanketed by the mainsail, so boats are typically fitted with a bowsprit for a Code Zero or Gennaker.▶ 9:18 The system suits short-handed sailing and heavy-weather conditions but sacrifices upwind sail-trim precision and light-air downwind performance.
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