Using Parallel Rules
23:19
Ep 37: Navigation: Basic Plotting Part 1
10:19
Navigation - Plotting with Triangles
12:00
Sea Master Training Centre - Using Portland Plotter & Variation
6:58
How to use the Portland Porter
15:18
Protractor Triangle for Paper Chart Plotting
25:27
How an 18th Century Sailing Warship Works (HMS Victory)
12:54
Parallel Indexing: How to Determine & Set Parallel Index Lines l PI Lines l RADAR l Passage Planning
21:04