| Paper charts are a necessity.
In addition to electronic charts, you should have paper charts aboard. I use the Raymarine system with Navionics charts but they have some drawbacks. Were I to venture around the world, I would arm myself with paper charts and a Yeoman chart reader. I have both aboard and find the Raynav to be very useful in tight areas, but lack the long view of paper charts.
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Jim We are what we repeatedly do. Excellence, therefore, is not an act but a habit."
--Aristotle |