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Setting a course around the cans..... |
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Sam.Spoons
Really should get out more Joined: 07 Mar 12 Location: Manchester UK Online Status: Offline Posts: 3398 |
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Topic: Setting a course around the cans..... Posted: 10 Dec 17 at 9:54pm |
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I sail on a small inland lake we usually use the fixed marks plus a couple of inflatables if required. A question arose today (I was asst. R.O.) regarding looping marks,. A leeward mark that would, if applying the shortest route to the next mark, suggest a starboard rounding was rounded to port (the idea being to force boats off to the right of the course). I said they this was a bad idea as 50% would not take notice of the course board and round to Starboard (I was wrong...... I blame 30 years racing windsurfers). I also thought, but was/am not sure if, that was prohibited in the RRS. Do the RRS prohibit looping marks? The only references I can find are that looping a finishing mark is prohibited as "boats finish by crossing the line from the direction of the last mark" (in the RRS) and that looping marks is discouraged (in the RYAs Race Management Guide).
Edited by Sam.Spoons - 10 Dec 17 at 10:02pm |
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Rupert
Really should get out more Joined: 11 Aug 04 Location: Whitefriars sc Online Status: Offline Posts: 8956 |
Post Options Quote Reply Posted: 10 Dec 17 at 10:14pm | ||||
Marks should be set so you go round them towards the next one. Simple as, as far as I'm concerned. Maybe others can show me situations where that isn't true?
Why is forcing the fleet to go one way thought necessary? Are they all sheep who simply follow? |
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JimC
Really should get out more Joined: 17 May 04 Location: United Kingdom Online Status: Offline Posts: 6648 |
Post Options Quote Reply Posted: 10 Dec 17 at 10:27pm | ||||
The string rule is the one you are looking at.
The biggest issue is whether the marks are described as passing marks or rounding marks in the SIs. If they aren't rounding marks then the string needn't touch them eg red course. In both cases B is left to starboard. Edited by JimC - 18 Mar 18 at 9:02am |
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Sam.Spoons
Really should get out more Joined: 07 Mar 12 Location: Manchester UK Online Status: Offline Posts: 3398 |
Post Options Quote Reply Posted: 10 Dec 17 at 10:27pm | ||||
Precisely..... I thought it was a daft idea and the ROs reasoning didn't make sense to me.
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Blaze 671 "supersonic soap dish" |
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423zero
Really should get out more Joined: 08 Jan 15 Location: United Kingdom Online Status: Offline Posts: 3406 |
Post Options Quote Reply Posted: 10 Dec 17 at 10:28pm | ||||
We do occasionally use a mark to keep boats away from bathing area or a group of fishermen, for instance, bathing area is opposite number 2 buoy, if it is busy we will send boats either to Port or Starboard of number 2 buoy depending on direction.
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Sam.Spoons
Really should get out more Joined: 07 Mar 12 Location: Manchester UK Online Status: Offline Posts: 3398 |
Post Options Quote Reply Posted: 10 Dec 17 at 10:34pm | ||||
That's exactly what I was thinking but it does it actually prohibit a RO from setting a course following the green line?
Edited by Sam.Spoons - 10 Dec 17 at 10:35pm |
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JimC
Really should get out more Joined: 17 May 04 Location: United Kingdom Online Status: Offline Posts: 6648 |
Post Options Quote Reply Posted: 10 Dec 17 at 10:40pm | ||||
No, but they do need to specify that B is a rounding mark. To my mind its sensible for club racing SIs to specify that all marks are rounding marks unless specifically identified otherwise.
Edited by JimC - 10 Dec 17 at 10:41pm |
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423zero
Really should get out more Joined: 08 Jan 15 Location: United Kingdom Online Status: Offline Posts: 3406 |
Post Options Quote Reply Posted: 10 Dec 17 at 10:54pm | ||||
Looking at Graph, using a rounding mark even further from exclusion zone, which would be A to C would work better than just setting a passing mark.
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Brass
Really should get out more Joined: 24 Mar 08 Location: Australia Online Status: Offline Posts: 1146 |
Post Options Quote Reply Posted: 11 Dec 17 at 12:29am | ||||
Pet peeve (doesn't quite rank with 'crash tack'): there is no such thing as a 'passing mark'. There are just 'rounding marks' and marks that are not rounding marks. Why would you want to set a default of rounding all marks (although sometimes SI do this through carelessness)? You should avoid setting looping marks. If you want boats to sail the triangle around mark B, then simply specify B to be left to port. If the Race Management Manual tells you not to do it, best not to do it.
I rather like Rupert's way of putting it:
Edited by Brass - 11 Dec 17 at 12:31am |
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JimC
Really should get out more Joined: 17 May 04 Location: United Kingdom Online Status: Offline Posts: 6648 |
Post Options Quote Reply Posted: 11 Dec 17 at 10:27am | ||||
Appendix B has the concept of passing a mark [grin]. Agreed the term is not used outside the appendix, but it is useful in this context. I must admit I'm not entirely clear what it brings to Appendix B, but that's maybe because I've never been involved in board competition.
Consider a course like this, which is quite useful for round the cans handicap racing. If a careless or hurried amateur race team sets the starboard rounding mark a bit to the right of the rhumb line between windward and leeward marks, and the leeward mark is not defined as a rounding mark... Edited by JimC - 18 Mar 18 at 9:03am |
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