Position Circles in Chart Work — Radar Ranges, Vertical Angles & VSA index error | Mates MMD Exam скачать в хорошем качестве

Position Circles in Chart Work — Radar Ranges, Vertical Angles & VSA index error | Mates MMD Exam

This lecture explains Position Circles in Chart Work — what they are, how they are obtained, and how to plot them correctly on a nautical chart. You will learn: • What a position circle represents on a chart • How radar ranges are used to plot circles accurately • How Vertical Sextant Angle (VSA) helps determine distance • Correcting height for tide and index error • Practical plotting examples used in real navigation Position circles are an essential concept for 2nd Mate, Chief Mate and MMD exams, and equally important for safe watchkeeping at sea. If you’re preparing for exams or want to strengthen your navigation basics, this session will help you understand the concept step-by-step. 📌 Topics covered: Position Circle • Radar Range • Vertical Sextant Angle (VSA) • Index Error • Tide Correction • Chart Work Navigation 🌐 Connect with Sailor Rider YouTube: 👉    / @sailor_rider   Facebook: 👉   / 19imzynlrp   Instagram: 👉 https://instagram.com/sailor_rider?ig... Threads: 👉 https://www.threads.com/@sailor_rider 🔖 TAGS Position circle Chart work navigation Radar range plotting Vertical sextant angle VSA calculation Nautical chart plotting Chief mate exam 2nd mate exam MMD navigation Position fixing at sea #ChartWork #Navigation #MerchantNavy #ChiefMateExam #MarineTraining