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Post Options Post Options   Quote Brass Quote  Post ReplyReply Direct Link To This Post Topic: Race rules advice pls
    Posted: 18 May 23 at 1:10pm
Originally posted by eric_c


Until the overlap happens, L (clear astern) is the keep clear boat.

Yes
Originally posted by eric_c

If L establishes the overlap too close, they've failed to keep clear.

No.

Once the boats become overlapped, L is required initially to give W room to keep clear (rule 15), but the instant they become overlapped, L becomes the right of way boat so she has no obligation to keep clear.

If you were thinking that the instant just before the overlap L, still the keep clear boat, must have been so close that she was not keeping clear, I don't think that's a good approach. Consider the definition of keep clear

Keep Clear
A boat keeps clear of a right-of-way boat
(a) if the right-of-way boat can sail her course with no need to take avoiding action and,
(b) when the boats are overlapped, if the right-of-way boat can also change course in both directions without immediately making contact.


Immediately before the overlap:
* W can sail her course with no need to take avoiding action: she can change course to port or starboard.
* (b) does not apply because boats are not yet overlapped.

Practically speaking, for a boat to break rule 12, there just about always has to be a bow to transom shunt.
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Post Options Post Options   Quote Brass Quote  Post ReplyReply Direct Link To This Post Posted: 18 May 23 at 12:57pm
Originally posted by boatshed


Thanks. If W is crafty, say sitting just below the start line creeping forward ahead of the start signal, W could decide not to start to take action to avoid L who is slowly approaching from behind


Whether or not and how to respond will depend on time to go, distance from the start line and other tactical considerations.   Doing nothing when tactically attacked is very rarely the best option.

W can see the hook coming: from a rules POV, she has no obligation to do anything until boats become overlapped, then she must keep clear, but tactically, she'd better start doing something.

Originally posted by boatshed

and the gap will close then W can claim insufficient room to keep clear. L goes from the right of way boat to being the infringer because “room” is a universal defence if L decides to protest.


Room to keep clear under rules 15/16 is nothing like a 'universal defence'.

L can't just 'claim' insufficient room to keep clear.

She has to prove to the protest committee that there was insufficient space for her acting promptly and in a seamanlike way to keep clear.

In dinghys and moderate conditions .6 to 1 m between the boats when they became overlapped would be considered more than enough room for W to begin to keep clear.

If L got the hook closer than this, she can readily do a 'tag and release': immediatedly boats become overlapped, L bears away and accelerates, opens the gap to give W room, then comes back up towards the wind requiring W to keep clear, and from the moment it was possible to do so, W had better be doing all she could to keep clear.

If L is just the little bit competent, W is on a hiding to nothing.

Originally posted by boatshed

   Without an umpire, I would think the “room” defence trumps L’s argument of W rule breaking.


Why? Depends on the evidence, and I think you are vastly overestimating the force of rules 15/16.

Originally posted by boatshed


I wonder if it is possible to abuse the racing rules using techniques like these and indeed maybe these techniques are taught.


No. Unless a boat breaks the rules it is impossible to 'abuse' the rules.
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Post Options Post Options   Quote 423zero Quote  Post ReplyReply Direct Link To This Post Posted: 18 May 23 at 11:57am
Simplify the finish line rules, if you are sailing at 90 degrees to the line and have been for more than three boat lengths no one can call water on you.
Robert
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Post Options Post Options   Quote eric_c Quote  Post ReplyReply Direct Link To This Post Posted: 18 May 23 at 8:24am
Originally posted by boatshed

......

Thanks. If W is crafty, say sitting just below the start line creeping forward ahead of the start signal, W could decide not to start to take action to avoid L who is slowly approaching from behind and the gap will close then W can claim insufficient room to keep clear. L goes from the right of way boat to being the infringer because “room” is a universal defence if L decides to protest. Without an umpire, I would think the “room” defence trumps L’s argument of W rule breaking.

I wonder if it is possible to abuse the racing rules using techniques like these and indeed maybe these techniques are taught.


Until the overlap happens, L (clear astern) is the keep clear boat. If L establishes the overlap too close, they've failed to keep clear.

Of course on a real start line there may be a dozen more boats and inter-twining obligations to keep clear of one another...
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Post Options Post Options   Quote Old bloke Quote  Post ReplyReply Direct Link To This Post Posted: 18 May 23 at 4:54am
In the real world, if you are windward boat you have to convince the protest committee that you were unable to keep clear. Good luck with that unless you have good independent witnesses.
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Post Options Post Options   Quote boatshed Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 23 at 9:30pm
Originally posted by Brass

Originally posted by boatshed

Originally posted by JimC

The rules don't require you to guess what another boat might do differently. They do require you to be aware of what its currently doing. So you do need to allow for a right of way boat continuing on the same course and speed. You don't need to anticipate it suddenly changing direction for no obvious reason.


Thanks for your explanation. Thinking of rule 11 and pre start ( windward boat keeps clear) . What happens if the leeward boat sailing a little higher gains an overlap from behind but the windward boat takes no action to keep clear until the boats are close together and then “time and opportunity” is the defence by the windward boat? Is the leeward boat in wrong?


There's no such thing as 'time and oportunity'. 'Room and opportunity' was deleted from the RRS in 1995.

What W is entitled to is room to keep clear in accordance with rule 15, which says ACQUIRING RIGHT OF WAY When a boat acquires right of way, she shall initially give the other boat room to keep clear ...

Room is defined as Room The space a boat needs in the existing conditions, ... while manoeuvring promptly in a seamanlike way.

So before the boats become overlapped, W is clear ahead right of way boat and is required by the rules to do absolutely nothing to anticipate that she will shortly become the windward give way boat. Depending on the performance of the boats, however it may be smart for to do so, but that's not a rules obligation.

The moment boats become overlapped, W may need to begin taking action to keep clear of L. Maybe in your terms her 'opportunity' begins at the beginning of the overlap.

If there was initially enough room between boats when the overlap began for W to take action to keep clear of L, then L has given W the room to keep clear that she is entitled to.


Thanks. If W is crafty, say sitting just below the start line creeping forward ahead of the start signal, W could decide not to start to take action to avoid L who is slowly approaching from behind and the gap will close then W can claim insufficient room to keep clear. L goes from the right of way boat to being the infringer because “room” is a universal defence if L decides to protest. Without an umpire, I would think the “room” defence trumps L’s argument of W rule breaking.

I wonder if it is possible to abuse the racing rules using techniques like these and indeed maybe these techniques are taught.
Steve
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Post Options Post Options   Quote Brass Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 23 at 7:57pm
I don't want to play around with words too much, but to me 'stay far enough away' means anticipate.
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Post Options Post Options   Quote eric_c Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 23 at 7:30pm
Definition of 'keep clear'.
Keep Clear A boat keeps clear of a right-of-way boat
(a) if the right-of-way boat can sail her course with no need to take
avoiding action and,
(b) when the boats are overlapped, if the right-of-way boat can also change
course in both directions without immediately making contact.

So you don't exactly have to anticipate, you need to stay far enough away to sail reactively and not hit the right of way boat.
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Post Options Post Options   Quote Brass Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 23 at 3:06pm
Originally posted by boatshed

Originally posted by Dakota


Originally posted by Noah


Originally posted by Do Different

Basic principles of the rules are sufficient for safe and predictable racing, coupled of course with a degree of anticipation and foresight.

I agree. The rules do not require anticipation, but I find it is generally a faster way around the course if I do anticipate what others might do, especially on a small pond.



Really? When you are in a race, there’s no requirement to anticipate colliding with another boat?   More specifically, there is no requirement for a give way boat to anticipate having to keep clear of a right of way boat? Is that right?


Obviously it's not right.

CASE 27 says
A boat is not required to anticipate that another boat will break a rule.

That's the only thing that says a boat is not required to anticipate.

So, yes, a give way boat has quite a bit of anticipating to do.
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Post Options Post Options   Quote Brass Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 23 at 3:00pm
Originally posted by boatshed

Originally posted by JimC

The rules don't require you to guess what another boat might do differently. They do require you to be aware of what its currently doing. So you do need to allow for a right of way boat continuing on the same course and speed. You don't need to anticipate it suddenly changing direction for no obvious reason.


Thanks for your explanation. Thinking of rule 11 and pre start ( windward boat keeps clear) . What happens if the leeward boat sailing a little higher gains an overlap from behind but the windward boat takes no action to keep clear until the boats are close together and then “time and opportunity” is the defence by the windward boat? Is the leeward boat in wrong?


There's no such thing as 'time and oportunity'. 'Room and opportunity' was deleted from the RRS in 1995.

What W is entitled to is room to keep clear in accordance with rule 15, which says ACQUIRING RIGHT OF WAY When a boat acquires right of way, she shall initially give the other boat room to keep clear ...

Room is defined as Room The space a boat needs in the existing conditions, ... while manoeuvring promptly in a seamanlike way.

So before the boats become overlapped, W is clear ahead right of way boat and is required by the rules to do absolutely nothing to anticipate that she will shortly become the windward give way boat. Depending on the performance of the boats, however it may be smart for to do so, but that's not a rules obligation.

The moment boats become overlapped, W may need to begin taking action to keep clear of L. Maybe in your terms her 'opportunity' begins at the beginning of the overlap.

If there was initially enough room between boats when the overlap began for W to take action to keep clear of L, then L has given W the room to keep clear that she is entitled to.

Edited by Brass - 17 May 23 at 3:01pm
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