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Sailing in tide..quiz.

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KazRob View Drop Down
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Post Options Post Options   Quote KazRob Quote  Post ReplyReply Direct Link To This Post Posted: 02 Oct 17 at 8:46pm
I grew up in a place with 0.1knt of tide and wind that shifted once a week so cr*p in tricky tide but will give it a bash. I assume there are no shoals or anything that would affect the current in the channel
Head right off the line to pick up slacker tide or even back eddy off the headland and short tack up there until the channel. Then keep heading to the right and into the tide and try to cross the tide to the other side and come in to the with tide under me rather than coming from left and getting past the island in the lee of the shore. Reaches should be simpler with just crabbing enough to keep the track.
If nothing else it will give iGRF something to chew on
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iGRF View Drop Down
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Post Options Post Options   Quote iGRF Quote  Post ReplyReply Direct Link To This Post Posted: 02 Oct 17 at 8:28pm
Three hours and not a peep, lol, it's one thing regurgitating something you've read in a text book, quite something else when someone calls you on it..
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Rupert View Drop Down
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Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Posted: 02 Oct 17 at 8:27pm
I learned to sail on a river. Suspect others cannot be bothered feeding the troll.
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Pierre View Drop Down
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Post Options Post Options   Quote Pierre Quote  Post ReplyReply Direct Link To This Post Posted: 02 Oct 17 at 8:20pm
Ha haaa... They've all had a squeaky bum moment Graeme. I thought the knowledgeable forumites would have sorted this out in a trice. It would seem not. 
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iGRF View Drop Down
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Post Options Post Options   Quote iGRF Quote  Post ReplyReply Direct Link To This Post Posted: 02 Oct 17 at 5:16pm
OK here's my first case study, taken from the Gate start thread, this was a race in the late 90's, long distance across the milford haven entrance channel off Dale, where all week the racing had taken place just off Dale in the confines of the bay and the cliffs of Queen Annes head had been offering favorable shifts to the right all week.

So my question what's your strategy for the race it's a straight windward course round the island then a wing mark (boat) and finish at the start line beach. The wind is pretty clean maybe 5 degree oscillating certainly no more than 10, the tide is flooding indeed they had tried but failed to get the start off before it fully flooded.

The line is pretty square but slightly favoured favoured the committee boat (starboard) end as the wind swung slightly that way during the 10 -5 countdown.

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