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How Inaccurate Might Your Chartplotter Be?

By November 13, 2012

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While recently reviewing Nigel Calder's book "How to Read a Nautical Chart," I learned with some consternation that even many US coastal areas have chart inaccuracies - and that issues involved in electronic charts can exasperate the problem and lead to potentially disastrous misinterpretation of how close your boat may be to an underwater obstruction. This is, frankly, rather scary, especially for boaters using smart devices as their primary plotter for navigation. The screen representation of your boat on the chart may give a false sense of security resulting in coming closer to rocks or other underwater obstacles than you might realize. This is definitely something we all need to be aware of when entering unfamiliar waters. Learn more here.

Comments

November 26, 2012 at 4:50 pm
(1) Ben says:

This is a serious problem that has cost me dearly in the BVI 2 months ago! Trusted instrumentation way to much and ended up hitting hard with loss of rudder, bottom damage and…loss of face!
Trust the old fashion charts! That is my lesson…as a Friend said once…”trust but verrify”,

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