The Block, The Clue Board, and the Jib's Center of Effort #PerformanceMultihull #SailTrim

A quick technical breakdown of jib sheet lead angle and the function of the clue board. The hole you select on the clue board determines the vertical angle of the jib sheet. This angle controls the draft and twist of the sail by changing where the sheet's force is applied relative to the sail's center of effort. In short: The line from the block should lead roughly to the jib's center of effort for balanced trim on a given point of sail. Selecting the wrong hole will incorrectly flatten the foot or over-tighten the leech, hurting performance. SAFETY DISCLAIMER: PROFESSIONAL WORK This video documents professional marine work with significant risk of injury or vessel damage. This is NOT DIY instruction. You are solely responsible for your own safety and actions. We are not liable for any application of this information. Full Disclaimer: https://youngbarnacles.com/website-disclaimer/ USEFUL LINKS ➜ Supporting blog post https://youngbarnacles.com/the-art-and-science-of-the-self-tacking-jib/ ➜ Want to go deeper? Access our detailed composites videos, project files, and community on the Youngbarnacles Members Hub: https://youngbarnacles.com/plans/all-access-memberships/ ➜ Need world-class engineering for your project? Learn more about our professional design and consultancy services at SYAS Performance: https://syasperformance.weebly.com/ ➜ Free Sailing Library: Check out our free guides on composites, systems, and seamanship: https://www.youngbarnacles.com/resources MUSIC YouTube Audio Library ➜ https://www.youtube.com/