In terms of navigation, what is a 'fix' used for?

A 'fix' is an essential term used in navigation that refers to the process of determining a vessel's precise position at a given moment. This is crucial for safe navigation, as knowing the exact location helps mariners make informed decisions about their course, headings, and navigational strategies in relation to other vessels and hazards. A fix is typically established using various methods, such as GPS, celestial navigation, or landmarks.

Understanding the vessel's position is vital for maintaining safe distances from other vessels, avoiding hazards, and ensuring the vessel stays on its intended route. This allows for efficient navigation while minimizing risks associated with unforeseen obstacles or changing environmental conditions.