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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 Topic: luffing
    Posted: 02 Jul 12 at 11:43am
Maybe we are thinking of slightly different meanings to intent, because what you have described fits mine - the intention was clear in both your examples. Intent becomes less clearcut in other circumstances. 
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JimC View Drop Down
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Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 02 Jul 12 at 11:34am
If you carried on sailing the same heading for the next quarter mile after the overlap was broken that's pretty good evidence for the PC you were sailing a proper course. If on the other hand you changed back to the original heading as soon as you were clear then its pretty good evidence that it wasn't.

For what little my opinion is worth I don't agree with Rupert at all about intent - or quite a lot else on this thread.
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Post Options Post Options   Quote gbrspratt Quote  Post ReplyReply Direct Link To This Post Posted: 02 Jul 12 at 11:00am
Originally posted by Presuming Ed

If a boat establishes an overlap to leeward within 2bl, she can sail her proper course but no higher. If she establishes an overlap more than 2bl away, she can luff to HtW. If a boat establishes an overlap to windward, the leeward boat can luff to HtW. 

All alterations of course by a RoW boat must comply with 16.1.


This sounds like a sensible understandable answer (if its correct) Out of curiosity how do you prove you are or are not sailing your proper course? or is that a whole new can of worms?
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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 Jul 12 at 8:39am
So it does become about intent, whether the rules mention it or not.

Luffing someone to stay ahead of them is sailing above your proper course. Luffing someone because that is where you'd be going if that boat wasn't there, isn't.

Therefore, convincing a protest committee that your proper course changed because of outside factors which had nothing to do with the boat you luffed become all about intent.
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Post Options Post Options   Quote Presuming Ed Quote  Post ReplyReply Direct Link To This Post Posted: 01 Jul 12 at 10:21pm
If a boat establishes an overlap to leeward within 2bl, she can sail her proper course but no higher. If she establishes an overlap more than 2bl away, she can luff to HtW. If a boat establishes an overlap to windward, the leeward boat can luff to HtW. 

All alterations of course by a RoW boat must comply with 16.1.


Edited by Presuming Ed - 01 Jul 12 at 10:22pm
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Post Options Post Options   Quote r2d2 Quote  Post ReplyReply Direct Link To This Post Posted: 01 Jul 12 at 10:16pm
yes she can but she must give the other boat room to keep clear

Edited by r2d2 - 01 Jul 12 at 10:16pm
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Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Posted: 01 Jul 12 at 9:52pm
OK, clear this up once and for all then, please? Is the boat to leeward entitled to sail her proper course however she got to her position, or not? And if not, when isn't she?
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Post Options Post Options   Quote SoggyBadger Quote  Post ReplyReply Direct Link To This Post Posted: 01 Jul 12 at 9:24pm
Originally posted by Rupert

What she can't do is "luff" - ie change course with the intent to force the other boat off course. If the intent is to sail the course she would sail in the absence of the other boat, then there isn't a problem in the rules.


Sadly I don't think that's quite correct. The problem comes with the definition of "proper course" (see ISAF Case 14). Even within the restrictions of rule 17 (which I think covers the scenario we're discussing here) the leeward boat can still change course as long as she gives the windward boat the opportunity to keep clear.

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Post Options Post Options   Quote Presuming Ed Quote  Post ReplyReply Direct Link To This Post Posted: 01 Jul 12 at 9:00pm
Originally posted by Rupert

What she can't do is "luff" - ie change course with the intent to force the other boat off course. If the intent is to sail the course she would sail in the absence of the other boat, then there isn't a problem in the rules.

The rules aren't about intention. They're about what boats actually do. Altering course to windward is luffing. From the RRS: 

Terminology A term used in the sense stated in the Definitions is printed in italics or, in preambles, in bold italics (for example, racing and racing). ‘Racing rule’ means a rule in The Racing Rules of Sailing. ‘Boat’ means a sailboat and the crew on board. ‘Race committee’ includes any person or committee performing a race committee function. A ‘change’ to a rule includes an addition to it or deletion of all or part of it. ‘National authority’ means an ISAF member national authority. Other words and terms are used in the sense ordinarily understood in nautical or general use.

 From the Oxford dictionary website: 

luff
 
Pronunciation: /lʌf/
Sailing
noun
the edge of a fore-and-aft sail next to the mast or stay:
if your luff is flapping, pull the sail towards you to fill it with wind

verb
[with object]
steer (a yacht) nearer the wind:
I came aft and luffed her for the open sea
obstruct (an opponent in yacht racing) by sailing closer to the wind:
he can luff you, but must leave you room to get clear

The limit on how high a leeward boat can luff is provided by RRS 17. 

17 ON THE SAME TACK; PROPER COURSE
If a boat clear astern becomes overlapped within two of her hull lengths to leeward of a boat on the same tack, she shall not sail above her proper course while they remain on the same tack and overlapped within that distance, unless in doing so she promptly sails astern of the other boat. This rule does not apply if the overlap begins while the windward boat is required by rule 13 to keep clear.

The limit on the speed of the luff is 16.1. 

16 CHANGING COURSE
16.1 When a right-of-way boat changes course, she shall give the other boat room to keep clear.


Edited by Presuming Ed - 01 Jul 12 at 9:02pm
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Post Options Post Options   Quote SoggyBadger Quote  Post ReplyReply Direct Link To This Post Posted: 01 Jul 12 at 8:46pm
Originally posted by RS400atC

Twaddle!


I prefer to think of it as the product of a fertile imagination Big smile Plus a rake of beer Big smile
Best wishes from deep in the woods

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