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UK Sailmakers uses very powerful 3-D CAD/CAM software for sail design, which create virtual 3-D molds that can be digitally sliced into two-dimensional panels that when joined back together re-create a full-size version of the designed mold. Thanks to powerful 3-D graphic renderings, designers can see how sail fit around the spreaders and shrouds as well as make sure the clew height and sheeting angles are right. They can also analyze how a main and genoa work together to make sure the boat stays balanced. What we are looking for is a sailplan and sail shapes that put the maximum driving force in precisely the right place to produce a perfectly balanced boat – and with the least amount of drag. Pat Considine, UK Sailmakers’ chief designer, goes a step further and uses Fluid Structural Interaction software, called FSI for short, as a virtual wind tunnel for refining sail designs and sail construction. FSI calculations are used to test proposed designs and cloth choices to make sure they are not built too strong (too heavy) or too weak (too light) for their expected loads. The FSI calculations will predict whether a design and construction will keep its shape properly as the rig bends, halyards are tightened and sheets are trimmed. Shown rotating in this video are two renderings of a Tripp 47 mainsail design. The side-by-side comparison shows the sail with no backstay tension and with max backstay trim. The FSI software allows Pat to rotate the two designs together to study their shape from any angle. In this case, Pat needed to be sure the draft would not move too far aft as the sail was flattened; likewise, he had to make sure the draft was not too far forward when the backstay was eased completely. The FSI program has made extremely accurate predictions of how specific sail designs will perform once made and trimmed in a variety of wind speeds. These tests ensure sails will meet the performance needs right out of the bag.

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Croisière Formation vers le bateau-feu Sandettié ⛵ Embarquez pour une croisière formation unique, alliant pratique et théorie, à destination du mythique bateau-feu Sandettié. Une expérience immersive pour perfectionner vos compétences en navigation et découvrir les spécificités du large. 📅 Programme de la formation 📍 13h00 – Rendez-vous et briefing à Dunkerque Présentation du parcours, des conditions météorologiques et des objectifs pédagogiques. Préparation de la navigation en fonction de la marée, des courants et des hauteurs d’eau. ⛵ Départ et navigation en zone commerciale Lecture de carte et utilisation des outils de navigation Règles de circulation dans le chenal commercial et le Dispositif de Séparation du Trafic (DST) Gestion des croisements avec les cargos et ferries 🌊 Approche du bateau-feu Sandettié Positionnement et identification des amers Ajustement de la route selon le courant Explication du rôle historique et actuel du bateau-feu 🌅 Navigation au coucher du soleil et début de nuit Adaptation à la navigation nocturne Utilisation des feux et marques de nuit Pratique des manœuvres en conditions réduites de visibilité 📍 23h00 – Retour à Dunkerque et débriefing Retour au port en appliquant les techniques de navigation de nuit. Debriefing autour d’un verre pour échanger sur les apprentissages et ressentis. 🔹 Une formation complète et immersive Que vous soyez en quête de perfectionnement ou d'une première expérience de navigation en conditions réelles, cette croisière est idéale pour progresser et gagner en autonomie. Prêt(e) à hisser les voiles et à défier les éléments ? 🌊✨

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USS Constitution: Fasteners Count Reveal 2025 09 06 #sailing #boat #shorts

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long crossing can be hard on your mental state 🌊 sleep is little, your movements are restricted to the waves and wind 🌬️ but these little moments close to nature make it all worth it ⛵️ day 9 sailing from Chile to Panama 🗺️ sailed: 1.010 nm 🌎 to destination: 1.190 nm 🌬️ avg. on day: 12 kts ⛵️ avg. on day: 5 kts Stay Salty, Greta and Michael on Zambezi ps: in our link in bio you can find the Ocean Crossing Bundle which includes everything you need to know for offshore sailing ⛵️ #offshoresailing #sailing #catamaran #sailinglife #sailingadventure #oceansailing

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