Nav
The angular difference between true north and magnetic north, affecting compass readings on board ships.
Quick answer: The angular difference between true north and magnetic north, affecting compass readings on board ships.
This term page is part of the Protermify Maritime glossary and is published as static HTML for fast indexing and clear language coverage.
The angular difference between true north and magnetic north, affecting compass readings on board ships.
Magnetic Compass Variation matters because it supports clear communication in Nav contexts for Deck Officers, Engine Officers, and Masters. It also connects to aviation training and exam language such as STCW, Marlins Test, ISF Watchkeeper, and GMDSS.
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Questions and answers
In this glossary, Magnetic Compass Variation refers to: The angular difference between true north and magnetic north, affecting compass readings on board ships.
In maritime communication, this term appears in contexts such as: "Report magnetic compass variation and deviation for current position before entering pilotage waters as per VTS instructions."
Magnetic Compass Variation matters because it supports clear communication in Nav contexts for Deck Officers, Engine Officers, and Masters. It also connects to aviation training and exam language such as STCW, Marlins Test, ISF Watchkeeper, and GMDSS.
Magnetic Compass Variation is mainly used by Deck Officers, Engine Officers, and Masters.
In this glossary, Magnetic Compass Variation is grouped under Nav. Related pages in this category explain adjacent procedures, commands and operational concepts.
This definition is sourced from IMO SMCP, STCW Convention, SOLAS, COLREG and published by Protermify Maritime as a static maritime reference page.
The angular difference between true north and magnetic north, affecting compass readings on board ships.
Report magnetic compass variation and deviation for current position before entering pilotage waters as per VTS instructions.
English reference definition
IMO SMCP, STCW Convention, SOLAS, COLREG
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