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post #5 of Old 01-14-2011
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Offshore I do use GPS. I set the destination and then try to maintain the best VMG to that destination.

For coastal I like the ETA functions when I am attempting to get through a pass at which I need to arrive at a specific time. The Yucultas can only be transitted once a day in daylight hours when going north.

For most other activities the use SD's mark I eyeball and paper charts.

The boats I sail all have chartplotters. I have a laptop based system and I now have charts on my Android phone. I use these to discuss the differences among the various systems.

I would never use a GPS to go through a narrow channel.

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