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luffing |
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gbrspratt 
Posting king 
Joined: 26 Sep 11 Location: Felixstowe Online Status: Offline Posts: 170 |
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 Topic: luffingPosted: 30 Jun 12 at 1:49am |
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Can i luff down wind>
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SoggyBadger
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Joined: 26 Oct 10 Location: The Wild Wood Online Status: Offline Posts: 552 |
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Posted: 30 Jun 12 at 7:41am |
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Yes.
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Best wishes from deep in the woods
SB |
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gbrspratt
Posting king
Joined: 26 Sep 11 Location: Felixstowe Online Status: Offline Posts: 170 |
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Posted: 30 Jun 12 at 8:02am |
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Argument ssorted ta!
Edited by gbrspratt - 30 Jun 12 at 4:53pm |
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Do Different
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Joined: 26 Jan 12 Location: North Online Status: Offline Posts: 1312 |
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Posted: 30 Jun 12 at 8:03am |
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I guess "true course" rule has been long dropped.
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JimC
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Joined: 17 May 04 Location: United Kingdom Online Status: Offline Posts: 6662 |
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Posted: 30 Jun 12 at 8:28am |
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There is, and never has been any rule requiring a right of way boat to sail a "proper course". For some reason its a particuklar area of confusion for some sailors.
But there are circumstances in which a right of way boat is limited in what it can do. One of those is if a leeward boat establishes an overlap from behind (Rule 17), in which case she may not sail *above* her proper course. She's quite entitled to sail below it if she so wishes. |
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NickA
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Joined: 30 Mar 05 Location: United Kingdom Online Status: Offline Posts: 784 |
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Posted: 30 Jun 12 at 3:31pm |
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IE you can't sail underneath someone and then push them up, but if someone sails down onto you, then you can push them up. Yes?
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Javelin 558
Contender 2574 |
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alstorer
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Joined: 02 Aug 07 Location: Cambridge Online Status: Offline Posts: 2899 |
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Posted: 30 Jun 12 at 5:30pm |
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Yes, with caveats. And note that regardless of how the overlap is established, it is the proper course of the leeward boat. So in the case of an asymetric boat sailing an angle that brings them into conflict with a symmetric (or non-spinnaker) boat sailing the rhumb line, the asymetric can continue to sail her hot angle as long as she gives the windward boat sufficient time and room to keep clear. Note that no allowance has to be made for the windward boat being idiotic and bleating about their proper course or the overlap being established from behind, as long as no contact is made.
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-_
Al |
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Rupert
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Joined: 11 Aug 04 Location: Whitefriars sc Online Status: Offline Posts: 8956 |
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Posted: 30 Jun 12 at 7:00pm |
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Sailing a proper course which involves another boat changing course isn't the same as luffing, it has to be remembered. Hence the Assy reachy boat being able to come from below and behind and still force the other boat to change course.
The problem I have is where the assy boat has cought a gust, and is sailing lower than the ordinary boat, and goes behind and below. The wind then drops, and the proper course of the assy boat then changes by 70 degrees, or some such, as it now wants to luff up to keep the kite filling, so forcing the ordinary boat which it has just ducked to massively change course too. The rules have no problem with it, as far as I can see, and I guess it is just another peril of handicap racing, but it seems wrong, somehow. |
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Firefly 2324, Puffin 229, Minisail 3446 Mirror 70686
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JimC
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Joined: 17 May 04 Location: United Kingdom Online Status: Offline Posts: 6662 |
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Posted: 30 Jun 12 at 8:32pm |
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70 degrees would be quite remarkable Rupert... I don't know of an asymettric boat that can usefully gybe more than 100 degrees on the run even in the lightest of air, so very unlikley to be more than about 20 or 30 dgrees difference in angle between strong gust and lull.
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Rupert
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Joined: 11 Aug 04 Location: Whitefriars sc Online Status: Offline Posts: 8956 |
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Posted: 30 Jun 12 at 9:34pm |
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Maybe I'm picturing my angles wrongly, but the scenario where an assy boat goes from sailing from well below to well above the line of the boat going straight is pretty common on a small lake in gusty weather.
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Firefly 2324, Puffin 229, Minisail 3446 Mirror 70686
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