How to Solve Mercator Sailing Problems | Maritime Navigation Tutorial

📍 Welcome back to Maritime Academia!

In this lesson, we’ll master Mercator Sailing step by step, a fundamental topic in marine navigation. Perfect for BSMT cadets, deck officers, and aspiring seafarers preparing for board exams or standing a navigation watch on board. ⚓

🧭 What You’ll Learn:

• What Mercator Sailing is and how it differs from Plane Sailing.
• Why Mercator Sailing provides more accurate results over long distances.
• How to calculate course and distance using meridional difference and difference of longitude.

📊 Sample Problem:

A ship at Lat. 32°10′ N, Long. 66°25′ W is to head for Lat. 36°59′ N, Long. 75°43′ W.
We’ll compute:
✅ Difference of Meridional Parts (DMP)
✅ Difference of Longitude (D’long)
✅ Course
✅ Difference of Latitude (D’lat)
✅ Distance
✅ True Course = 302.7° T

🚢 Why this matters:
Mercator Sailing is a core competency in marine navigation and is often included in maritime board exams and onboard passage planning. Mastering this will help you navigate safely and confidently.

📚 Timestamps:
00:00 – Intro
00:45 – What is Mercator Sailing
02:10 – Why use Mercator Sailing
03:20 – Step-by-Step Sample Calculation
10:00 – Final Course and Distance

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