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Forum: Marine Electronics

11-01-2015, 13:34

Replies: 357

Another foundering how do chart plotters get it wrong

Views: 36,647

Posted By Jim Cate

Re: Another foundering how do chart plotters get it wrong

Mark, there is roughly one thousand miles of sea room to the east of Gull island and rock and reef. Most of us who pass that area at night use a small fraction of that sea room to avoid worrying...

Forum: Marine Electronics

06-01-2015, 03:04

Replies: 357

Another foundering how do chart plotters get it wrong

Views: 36,647

Posted By Jim Cate

Re: Another foundering how do chart plotters get it wrong

Perhaps my earlier post wasn't explicit enough. There is simply no good reason for these folks to have been within five miles of Gull Island in the dark (as they must have been to hit it at 0500)....

Forum: Marine Electronics

05-01-2015, 14:10

Replies: 357

Another foundering how do chart plotters get it wrong

Views: 36,647

Posted By Jim Cate

Re: Another foundering how do chart plotters get it wrong

Comments:

ON my copy of the relevant chart, the survey date is shown as 1970. This is before GPS was used in surveys. Absolute accuracy is not likely.

This area is subject to strong and poorly...

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