About Nautical Wiki

A free, interlinked study reference for seafarers preparing MCA and Malta deck exams, and for officers who want to review a topic properly.

Where the content comes from

Nautical Wiki grows out of years of study notes and course material kept by a professional captain while preparing for MCA and Malta deck exams.

AI tools organise those notes into one topic per exam subject.
Every fact is checked against the official texts (COLREG, SOLAS, STCW, MCA and Transport Malta notices, IMO resolutions, NP100), listed under Resources on each topic.
Topics are compared regularly with new and amended regulations and updated where needed. Each topic shows the date of its last review.
Spotted a mistake? Use “Report a problem” at the bottom of any page.

From a professional captain's years of study notes · Organised with AI and checked against current regulations

Every topic follows the same order, so you learn the page once:

Deep-dive: one section per subject, each opening with “In short”.
⚡ Flashcards: test yourself after reading, with exam-style questions on the facts that matter.
📚 Resources: videos, books, regulations and official sites to read next.
Exam focus: typical examiner questions and what they want to hear.

Diagrams are our own. Photos come from Wikimedia Commons and keep their own licence, credited under each image with a link to the licence.

Study material only: not legal advice and not a substitute for the official MCA, Transport Malta, IMO or flag-state texts.