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Old 08-11-2011, 23:13   #16
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I have a chart of Bodrum Harbour Turkey dated 1787 . I calibrated it and opened it in Opencpn . It us surprisingly accurate The scale says echelle du mille which translates to scale in miles. So pre decimal . I also recently calibrated an 1800 chart of Delaware river .Wilmington has not moved much since. I lead a sad life Dont forget Columbus managed to hit the Carribean without a chart, but he was aiming at India

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Richard
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Old 09-11-2011, 02:41   #17
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Do they do charts in paper these days?







Joke...
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Old 09-11-2011, 03:33   #18
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Re: Frequency of Replacing Paper Charts

I found my main chart in a Neolithic burial site (we do have 'em here - and "back in the day" (as kids) did a bit of DIY archaeology - wasn't quite as frowned upon as nowadays).



Must get around to doing some updates
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Old 09-11-2011, 04:10   #19
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Re: Frequency of Replacing Paper Charts

Quote:
Originally Posted by David_Old_Jersey View Post
I found my main chart in a Neolithic burial site (we do have 'em here - and "back in the day" (as kids) did a bit of DIY archaeology - wasn't quite as frowned upon as nowadays).



Must get around to doing some updates

It took me a sec...funny
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Old 09-11-2011, 04:23   #20
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Re: Frequency of Replacing Paper Charts

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Originally Posted by David_Old_Jersey View Post
I found my main chart in a Neolithic burial site (we do have 'em here - and "back in the day" (as kids) did a bit of DIY archaeology - wasn't quite as frowned upon as nowadays).



Must get around to doing some updates
DOJ,

That is the perfect chart for you. Most days you don't seem to know where you are headed, anyway.
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