Alfredo Contaldo · vídeo

O que este vídeo aborda

To solve chartwork exercise 5.3.3-2 on chart 5D, a navigator must determine the compass heading (PV) required to pass 2.6 nautical miles off the Scoglio d'Africa lighthouse.1:19 The procedure assumes no external environmental factors like current or wind, allowing the true course (RV) to equal the true heading (PV).4:06 Using a compass and parallel rulers, the navigator plots a course tangent to a 2.6-mile radius circle centered on the lighthouse, resulting in a true heading of 184 degrees.4:06 The magnetic variation must be updated from 1994 to 2008 by applying an annual increase of 7 minutes east over 15 years, yielding a total variation of 2 degrees and 0.5 minutes east.6:01 Applying the conversion formula, the navigator subtracts the variation from the true heading to find a magnetic heading of 181 degrees and 55 minutes.8:11 Consulting the residual deviation table for the nearest magnetic value of 180 degrees provides a deviation of +3 degrees.9:08 Subtracting this deviation results in a final compass heading of 178 degrees and 55 minutes.10:05

Mais de Alfredo Contaldo

5.1.1 - 1 Chart Problem Solving 🗺️ Nautical License Over 12 Miles ⚓out. de 2026Safe Night Sailing: Complete Guide and Practical Tips ⚓✨⛵⚓Sailing Course Ep. 12set. de 2026Sailing from Sardinia to Menorca ⛵ 200 miles beating against the wind ⛵ Sailing Vlog EP.3 ⚓ago. de 2026⛵ STUCK by the MAESTRALE in SARDINIA⚓30 knots at anchor - Trekking 🥾 and Snorkeling 🤿🌊 sailing vlogjul. de 2026

De Alfredo Contaldo — veja o barco, a tripulação e cada vídeo analisado do canal.

The Sailing Directory Newsletter

Um e-mail com os melhores achados da frota — os momentos, barcos e histórias que valem o seu tempo de visualização. Insira seu endereço para receber sua própria cópia.