ECDIS Chart Updating: Keeping ENCs Current
Electronic charts correct themselves from weekly data, which makes the lapses quiet and dangerous. How ENC updating really works, where it falls short, and what you must still do by hand.
Electronic charts correct themselves from weekly data, which makes the lapses quiet and dangerous. How ENC updating really works, where it falls short, and what you must still do by hand.
S-57, S-52, S-63, and now S-100 and S-101: the standards behind every ENC, what each one actually does, and how the shift to S-100 will change the picture on your screen.
An ECDIS rarely fails by breaking; it fails quietly. The settings, habits, and blind spots behind real groundings, and the simple discipline that prevents them.
Every ECDIS meets the same standard, yet no two makers build the same bridge. The major manufacturers you meet at sea, and why that difference makes training type-specific.
Having an ECDIS on the bridge is not the same as being compliant. The SOLAS fitting timetable, the backup options, the training, and what makes it your legal charts.
The two electronic charts can look alike but behave nothing alike. What separates an ENC from an RNC, and why the difference decides what your ECDIS can actually do.
An ECDIS alarm is only as good as the settings behind it. How the safety contour, the look-ahead cone, and cross-track limits keep the watch off the ground.
A voyage that ends badly rarely goes wrong at sea. It goes wrong days earlier, in a plan never properly made. Here are the four stages that turn a passage into decisions already taken.
A good route plan is thinking done in advance, so it does not have to be done at the wheel-over in the dark. Here is how to plan a passage on ECDIS — and run a route check that is actually honest.
ECDIS does not know what “safe” means for your ship until you tell it — and its default guess is dangerous. Here is how the safety contour, depth, and height settings really behave.