Staggered Plotting Part 2 & Cocked Hat Plotting | Celestial Navigation | Mate Exam, chart work
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Staggered Plotting Part 2 & Cocked Hat Plotting | Celestial Navigation | Mate Exam, chart work
2 846 просмотров · 8 месяцев назад
Sailor's Compass 🧭
3,18 тыс. подписчиков
2 846 просмотров · 8 месяцев назад
Staggered Plotting & Cocked Hat — Celestial Navigation Explained | Mate / Chief Mate
This lesson explains two important plotting concepts used in celestial navigation — exactly as asked in Mate & Chief Mate exams.
You’ll learn how to transfer a position line correctly in staggered observations, and how to understand / resolve a cocked hat when three lines do not meet at one point.
📘 What You’ll Learn
• What staggered plotting means
• How to transfer position lines (PL)
• Applying ship’s run + current between sights
• Using Day’s Work calculations to find coordinates
• Plotting transferred PL vs observed PL
• Concept of cocked hat (triangle of error)
• Why cocked hats form
• When a cocked hat can be resolved
• Compass error & identical error scenario
• Terrestrial cocked hat using horizontal angle method
⏱️ Key Sections
0:32 What is staggered plotting
2:32 Transferring PL explained
5:56 Using Day’s Work
7:27 Finding transferred position
9:55 Getting the fix
53:21 Cocked hat introduced
54:40 Reason for cocked hat
56:48 When it can be resolved
57:46 Terrestrial cocked hat
🎯 Who This Helps
✔ Mate’s Examination students
✔ Chief Mate candidates
✔ Cadets learning celestial plotting
✔ Anyone confused about transferred PL & cocked hat logic
🔍 TAGS
Staggered plotting navigation
Transferring position lines
Celestial staggered observations
Day’s work celestial plotting
Ship’s run and current plotting
Transferred PL vs observed PL
Cocked hat in navigation
Triangle of error plotting
Compass error and cocked hat
Resolving cocked hat
Horizontal angle cocked hat
Celestial plotting practice
Mate exam plotting questions
Chief mate plotting navigation
Single body celestial plotting
Navigation plotting explanation
Chart work celestial plotting
Fix using staggered sights
Navigation exam triangles
Merchant navy celestial plotting
#️⃣
#CelestialNavigation
#MatesExam
#MerchantNavy
#ChartWork
#NauticalScience