Alfredo Contaldo · video

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Alfredo Contaldo demonstrates the construction and application of the double bowline, or "gassa d'amante doppia," specifically for creating a quick-release barber hauler for headsail adjustment.0:37 Unlike the traditional double bowline used for a bosun's chair, this version features two loops that allow for a quick-release mechanism when the working end is passed through the resulting bight.2:01 To tie the knot, form an initial loop, pass the working end through, perform a second similar pass around the standing part, and secure the loops by pulling the working end through the bight.1:08 Leaving sufficient length on the working end is essential for proper locking.2:26 This knot serves as a cost-effective alternative to using a snatch block for barber haulers, as it slides easily along the jib sheet.1:40 Additionally, the knot secures a line to two separate attachment points simultaneously, distributing the load symmetrically to reduce line wear during high-tension maneuvers.2:26 The knot releases instantly by pulling the working end.1:40

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