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Old 09-09-2011
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Errr if you are planning to navigate using some kind of onscreen electronic chart and rely on the depths displayed there here is a note of caution heard from the owner of a boat in a boatyard waiting for the damage surveyor to arrive.

"Well the chart plotter showed us in 42 feet of water when we went aground on the reef. "

Rely on a working depth sounder and set the alarm!
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