Alfredo Contaldo · vidéo

Ce que couvre cette vidéo

Leeway, or *scarroccio*, represents the lateral displacement of a vessel caused by wind, distinct from current-induced drift because it varies based on the boat's windage area.0:31 Navigators calculate the leeway angle empirically by observing the asymmetry of the wake relative to the centerline; the angle between the true heading and the resulting true course defines the leeway angle.1:33 When calculating navigation problems for the nautical license, leeway to starboard is treated as a positive value, while leeway to port is negative.4:23

Three primary formulas govern these calculations: the leeway angle equals true course minus true heading; true heading equals true course minus leeway; and true course equals true heading plus leeway.6:11 Unlike current, which affects all vessels uniformly, wind impact on speed is specific to each boat and is typically provided in exam problems as a known value derived from the paddlewheel log.7:47 When both wind and current are present, navigators must calculate the surface vector—accounting for leeway—before applying the current vector to determine the final effective course.18:22

Plus de vidéos de Alfredo Contaldo

What is the BOOM VANG and how to use it ⛵ Practical guide to sailboat trimming - Sailing Lesson ⚓oct. 2026Chartwork Problem 5.3.3-2 Sector C (Chart 5D) 🗺️ Unlimited Nautical License ⚓oct. 20265.1.1 - 1 Chart Problem Solving 🗺️ Nautical License Over 12 Miles ⚓oct. 2026Safe Night Sailing: Complete Guide and Practical Tips ⚓✨⛵⚓Sailing Course Ep. 12sept. 2026

De Alfredo Contaldo — voir le bateau, l'équipage et chaque vidéo analysée de la chaîne.

The Sailing Directory Newsletter

Un e-mail avec les meilleures trouvailles de la flotte — les moments, les bateaux et les histoires qui valent la peine d'être regardés. Entrez votre adresse pour recevoir votre propre exemplaire.