@soon_engineering: What it is AND how to use it — both halves in one set, built for anyone taking the ECDIS course. Inside (20 pages): • What ECDIS is, who must carry it, the charts and the sensors • Safety depth & CATZOC — with worked examples • The main operations, step by step: routes, checks, targets, position fixes • The alarms that matter + course checks at the end The full 29-page version — every operation, traps and all — is in the store, link in bio. Which half do you use more at sea — the planning or the monitoring? 👇 Save this for your course and your orals 📌 Free PDFs in the link in bio. #ecdis #navigation #Deckcadet #maritime #seafarers

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