IALA-A and IALA-B Navigation Marks and Atons

BOOK MARK THIS PAGE Getting confused about Lateral Navigation Marks and ATONs? There are two systems in the world. IALA-A and IALA-B. Basically, the colors are opposite but here is the infographic. This information and everything else you need to know about coastal navigation is in the NauticEd Coastal Navigation Course. It’s only $39. Upon completion, the course is […]

Navigation: Distance off a point method or double the angle

Each of our course pages has a nano-forum (called SeaTalks) attached so that students can comment on the content of that page. Recently a student asked a question on the nano-forum about the distance off/double the angle method and pointed out something which when we did the geometry analysis it turns up something quite revealing. The […]