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Avoiding collisions in a confined river
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bert View Drop Down
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Posts: 584 		Post Options Post Options   Quote bert Quote  Post ReplyReply Direct Link To This Post Topic: Avoiding collisions in a confined river
    Posted: 29 Aug 12 at 11:19pm
Originally posted by Brass

Originally posted by DFF

ditto then, steer to starboard, pass to port...
Why?
Because the situation isn't a racing situation & as such there is no need for tactics.
It is then common sense & being polite.
Just because the rules say - for example - that power gives way to sail, doe's not mean that the smart move is to insist on it. Some times the best way forward is to just give way even when you have the right of way, for "ease of passage".
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Brass View Drop Down
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Posts: 1151 		Post Options Post Options   Quote Brass Quote  Post ReplyReply Direct Link To This Post Posted: 29 Aug 12 at 9:50pm
Originally posted by DFF

ditto then, steer to starboard, pass to port...
Why?
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Posts: 337 		Post Options Post Options   Quote ChrisJ Quote  Post ReplyReply Direct Link To This Post Posted: 29 Aug 12 at 5:46pm
If I was in yellow, and it was a non-racing situation, then I would assume that the running boats know nothing about starboard / port / keeping clear... so a quick tack would be obvious.
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Posts: 19 		Post Options Post Options   Quote DFF Quote  Post ReplyReply Direct Link To This Post Posted: 29 Aug 12 at 10:03am
ditto then, steer to starboard, pass to port...
Crewing on a Melges 24, against my better judgement...
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bert View Drop Down
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Posts: 584 		Post Options Post Options   Quote bert Quote  Post ReplyReply Direct Link To This Post Posted: 27 Aug 12 at 11:23pm
Because this is NON racing situation it would be better & easier for yellow to tack early & avoid ALL the problems. common sense really.
If the river is wide enough for the "wind < to > drop and green and blue slowed significantly" then there must have been enough time for the problem to have been avoided.
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Posts: 19 		Post Options Post Options   Quote DFF Quote  Post ReplyReply Direct Link To This Post Posted: 27 Aug 12 at 2:41pm
We came into a whole squib fleet on the River Tay while being on the beat, starboard ...
 
They were hemmed in by sheer volume of boats and the shallows: unfortunetly a keel boat on STB beat ahead of us did not heed the calls for water to avoid obstruction ie squib to side, back, front! and stood on his STB rights, resulting in him colliding and probably some other squibs colliding.
 
What people "should do" is over written by R14.
Crewing on a Melges 24, against my better judgement...
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Posts: 1514 		Post Options Post Options   Quote Ruscoe Quote  Post ReplyReply Direct Link To This Post Posted: 18 Jul 12 at 5:07pm
This is a common situation for us at Tewkesbury, our River is very narrow and racing is very, very close.  In that situation as yellow i would tack off despite having a starboard right of way.  Whilst Green looks to be easily comfortable to be able to luff up out of the way Blue may struggle.  In this instance at our club he could call for water for the bank if there was no other action he could take.  Hence why when i am in this situation i tack off for a clearer racing line and wind.

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Posts: 6662 		Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 18 Jul 12 at 1:51pm
In that situation, were I yellow, I might either have tacked or else waved green to luff up and pass to windward of me.

Were I blue I think I'd have just held my course. I don't think there's much I could usefully do.

If I were green I think I'd probably have crossed the river to pass well behind yellow, starting a while before the diagram.

It depends hugely on precise closing speeds, wind and a dozen other factors. But the main thing is to act early and communicate as much as possible with the other boats.

With the navigation rules in question I would say that green is required to luff up and go behind yellow, and should have already started by the time the boats got to that position.
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Posts: 8956 		Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Posted: 18 Jul 12 at 1:02pm
I'd agree these situations should involve common sense as well as rules. Chances are that it is easier for yellow to keep clear, simply by luffing or tacking, than for boats going with the wind and current. 
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Posts: 3011 		Post Options Post Options   Quote RS400atC Quote  Post ReplyReply Direct Link To This Post Posted: 18 Jul 12 at 10:29am
If they were racing, Green should have gybed onto starboard before yellow tacked.
You have to think ahead in river racing.
As it is a non-racing situation, green should have gone behind yellow. Blue likewise if she cannot safely pass ahead.
But Yellow could have hailed 'hold your course' and tacked, or just tacked to avoid sailing through the lee of the other boats. Or indeed hailed and luffed above them perhaps?

By thinking a little further ahead, yellow could have avoided the issue by making a short tack so that she did not meet the other boats on that side of the river. Thinking and judging things a couple of tacks ahead makes a lot of difference.
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