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Old 29-09-2014, 19:40   #1
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Location: NY, NY in Argentina
Boat: Antares 44i
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My Pre passage routine - Max Sea and Ocean Currents

Interested in your input to how I prepare for blue water passages. This is a blog post on my technique but I am sure some of the salts out there will have stuff for me to learn from. Bring on the noise.

Passage Plan | s/v two fish
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Old 02-10-2014, 04:39   #2
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Re: My Pre passage routine - Max Sea and Ocean Currents

Quote:
Originally Posted by Jaymannyc View Post
From the blog :
Some day I will create an amazing program that takes into account how cruisers actually sail ...
Interesting and informative text, indeed. Thanks for posting.

I like your idea of making a table with extracts from GRIB data at given points.

Actually, I use such a tool built in the framework of OpenCPN Route Properties. It has some more capabilities, but this table is its only feature I ever use in real planning. It puts together the basic data for each waypoint: ETA, state of daylight, state of the tide, true wind and point of sail. It also can handle the sea currents data, if included in the same GRIB, but these are not commonly available.

I also use a simple polar speed diagram, mostly to show when motoring is to be expected (in this example, speed 5.11 is motoring speed).

Simple but useful...
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Old 05-10-2014, 20:06   #3
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Re: My Pre passage routine - Max Sea and Ocean Currents

Great idea with the automated table. I might have to try the open cpn. price is right.
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