4:07 How to make great circle sailing | FURUNO ECDIS tutorial | 12:25 GREAT CIRCLE SAILING BASICS | NAPIERS RULE | SPHERICAL TRIANGLE | CHART WORK CONCEPT |AHOY! NAVIGOS. 10:58 Sailing in Circles: The Beauty of a Day Sail 9:05 Большие окружности и локсодромии — типы маршрутов 13:12 GREAT CIRCLE SAILING 4:14 Why don't ships go straight? | Great Circles 3:20 Why Don't Ship Travel in Straight Line? Great Circle Sailing 10:35 HOW TO SOLVE GREAT CIRCLE SAILING PROBLEMS | LIVE EXAMPLE SOLVED | AHOY! NAVIGOS