Nautical Wiki
A free study reference for seafarers preparing MCA and Malta exams — and for officers who want to brush up.
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- Patient Assessment: History Taking and Examination — On board there is no doctor to hand the patient over to. The officer in charge of medical care must collect a structured history and perform a systematic examination, then pass a clear picture to the Radio Medical Advice service. This article covers the method: what to ask, in what order, how to examine, and what to record.
- Radar Errors, Clutter and False Echoes — Why radar never shows the world exactly as it is: range and bearing errors, sensor-induced errors, blind and shadow sectors, sea and rain clutter, and the four families of false echoes — and how a watchkeeper recognises and manages each one.