Bunker Delivery Note (BDN): Contents, MARPOL Rules and Checks
What a bunker delivery note must show, who signs it, how long it is kept, the MARPOL sample, sulphur limits and ECAs, and what to do if figures differ.
Nautical Science
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Oil Record Book: Part I and Part II Entries, Rules and PSC Checks
What goes in the oil record book: Part I machinery space and Part II cargo codes, entry and signing rules, retention, OWS and ODME records, and inspections.
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What Is the IBC Code? Ship Types, Products and Certificates
What the IBC Code requires of chemical tankers: scope, ship types 1, 2 and 3, the 21 chapters, Chapter 17 products, safety systems and certificates.
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What Is the ISPS Code? Security Levels, Plans and the ISSC
The ISPS Code sets security rules for ships and port facilities. Learn the three security levels, the security officers, plans, the ISSC and what PSC checks.
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What Is the Load Line Convention? Freeboard and Marks Guide
The Load Line Convention sets how deep a ship may load. Learn how freeboard is assigned, what the marks mean, and what surveyors and PSC check on board.
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What Is the MLC 2006? Maritime Labour Convention Explained
The MLC 2006 sets seafarers’ minimum rights on pay, rest, food and repatriation. See how ships are certified, what inspectors check and how it is amended.
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Ship Stopping Distance: Crash Stop and IMO Limits Explained
How far does a ship travel before stopping? Track reach, head reach, the IMO crash-stop limit of 15 ship lengths, and other ways to avoid danger ahead.
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Under-Keel Clearance (UKC): Calculation, Allowances, Policy
Under-keel clearance explained: how to calculate static and dynamic UKC, which allowances to deduct, company UKC minimums and how UKC is monitored.
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VLCC Meaning: Very Large Crude Carrier Specs, Owners, Rates
A VLCC carries ~2 million barrels of crude oil at 200,000-320,000 dwt. This guide covers design, routes, chartering mechanics, fleet size, and top owners.
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Nautical Science: A Practical Guide to How Ships Work at Sea
A working guide to nautical science from a deck officer and marine surveyor — covering ship navigation, cargo operations, maritime safety, steering and manoeuvring, and port procedures.