navigation - page 1
The methods of navigation used by the modern boat owner have changed quite rapidly from the traditional methods still currently taught. This doesn’t make the old methods wrong; it just means that the emphasis has changed. With GPS used in many cars, the level of computer skills of the general public being high, and the so-called paperless offi ce, the modern boat owner desires a different approach to navigation.
The boat owner cannot rely entirely on electronic navigation for pilotage. Pilotage will introduce the well-established and practical aspects of entering and leaving a harbour or anchorage.
Types of Marine Navigation
Radio Navigation Determining your position based on radio signals (e.g. RDF, LORAN).
Radar Navigation Using radar to determine direction and distance to nearby objects.
Inertial Navigation Use of accelerometers and gyroscopes to keep an electronic dead reckoning. Not used much on sailboats.
Satellite Navigation Use of satellite based electronic systems; primarily GPS.