| Re: Div11 H17 Championship and Points Regatta at Rock Hall YC
[Re: brucat]
#192408 09/30/09 05:52 PM 09/30/09 05:52 PM |
Joined: Jan 2004 Posts: 1,884 Detroit, MI mbounds
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Posts: 1,884 Detroit, MI | Second Sub: Since 1st sub is used for general recall and 3rd sub is now commonly used for RC's intention to run another race. Since your are "substituting" a new weather mark.
Last edited by mbounds; 09/30/09 05:53 PM.
| | | Re: Div11 H17 Championship and Points Regatta at Rock Hall YC
[Re: HMurphey]
#192463 10/01/09 12:07 PM 10/01/09 12:07 PM |
Joined: Aug 2007 Posts: 3,969 brucat
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Posts: 3,969 | Been there, done that. As Matt and I have noted, all of this is great on paper, but tends to fall apart on the water. Once you have 4-6 fleets on the same course, especially with the wide variation in talent within those fleets (leaders at the gate while last place is still going to weather), change marks become useless in a practical sense. This could work well when you're running 2-3 fleets, so long as the course length and strength of the fleets keeps the fleets separated from one another. No one is saying not to do it, but they are not comfortable with the idea. While I'm open to try new things, I'm learning to be more conservative to avoid abandoning races because I've gotten "too cute." Haven't had to do it yet, don't want to start now... BTW, assuming there's wind, there's no bobbing at my regattas. I sometimes need to force myself to slow down so people can have a break between races.  Mike | | | Re: Div11 H17 Championship and Points Regatta at Rock Hall YC
[Re: brucat]
#192471 10/01/09 03:05 PM 10/01/09 03:05 PM |
Joined: Jun 2001 Posts: 3,116 Annapolis, MD Mark Schneider
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Posts: 3,116 Annapolis, MD | Generally speaking, when the wind shifts with multiple classes on the same course, it's impractical to effectively use change marks anyway.
First time I have done this RC boat thing but that is what I saw. The PRO's solution kept the first fleet racing (granted that the 17 fleet was small and faster then the next starters the 16's) So I am a bit confused... Matt seems to say... no changes in the SI's are needed. You think an additional line in the SI's would be needed. What am I missing? I think everyone agrees that telling the racers about this mark change strategy before hand is a win for everyone.
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| | | Re: Div11 H17 Championship and Points Regatta at Rock Hall YC
[Re: Mark Schneider]
#192472 10/01/09 03:26 PM 10/01/09 03:26 PM |
Joined: Aug 2007 Posts: 3,969 brucat
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Posts: 3,969 | By the book, I think it needs to be in the SIs. Unless you consider a starting mark to be a rounding mark, you wouldn't comply with RRS 33 by flying C at the start. This doesn't seem to be the intent of the RRS as I read it (otherwise, why would they say "starting mark" vs "rounding mark" vs "finishing mark"?).
This is especially true since you'll want to use something other than the C flag, and you'll need to explain that (in writing, not just at the skippers meeting, ISAF cases for that too).
As Matt mentioned, this was mentioned in a National RO exam (there were a LOT of other problems presented with that case, the flag was only part of the issue). I think it just highlighted a point where too much is too much...
Mike | | | Re: Div11 H17 Championship and Points Regatta at Rock Hall YC
[Re: brucat]
#192474 10/01/09 03:36 PM 10/01/09 03:36 PM |
Joined: Jun 2001 Posts: 3,116 Annapolis, MD Mark Schneider
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Posts: 3,116 Annapolis, MD | Got it... thanks
It proved to be the best multi fleet solution that I have seen.
One other question... the 16's were insistent that the offset mark was just not needed... It made no difference to them.
Spin boat fleets really seem to want them...Is the need for an offset resolving to spin fleets primarily?
crac.sailregattas.com
| | | Re: Div11 H17 Championship and Points Regatta at Rock Hall YC
[Re: Mark Schneider]
#192481 10/01/09 04:49 PM 10/01/09 04:49 PM |
Joined: Jan 2004 Posts: 1,884 Detroit, MI mbounds
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Posts: 1,884 Detroit, MI | In the preamble to the Race Signals section of the RRS (inside back cover) it says: When a visual signal is displayed over a class flag, the signal applies only to that class. Under "Changing the Next Leg" in Race signals, it says: C: The position of the next mark has been changed So theoretically, there doesn't need to be anything in the sailing instructions - even at the start. However, since it is a rarely used application (change at the start) it was wise of John Macielag to call the competitors over and explain it to them before he did it. That's probably better than putting it in the SIs (If you want to keep a secret from the sailors . . . ) The whole point of racing is to have fair racing, not to confuse the competitors. The starting signals should not be a test of their rule book knowledge. | | | Re: Div11 H17 Championship and Points Regatta at Rock Hall YC
[Re: HMurphey]
#192521 10/02/09 10:36 AM 10/02/09 10:36 AM |
Joined: Aug 2007 Posts: 3,969 brucat
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Posts: 3,969 | "The whole point of racing is to have fair racing, not to confuse the competitors." We all agree on that...
I've seen 2nd Sub and 3rd Sub used at different regattas to mean, more races coming.
Harry, I would expect anything this unusual to at least be covered at the skippers meeting. By the book, it needs to be in the SIs if you're using a different flag. I like Matt's view on the description of flag C in Race Signals, but as Matt and I stated, we would need to be careful about adding confusion, especially near a gate.
Especially at youth regattas, I always take a C, M, and S flag to the skippers meeting and hold them up one at a time, and ask, "What does this flag mean, and where would you expect to see it?" Usually a hush falls over the crowd, then I stare directly at the (paid) coaches...
Using L on the water and making sure everyone is on the same page is always a viable option, and is an excellent idea. There are some things to be careful about, such as being sure you don't say something that could be construed as a change to the SIs (unless the SIs speak to this), and generally being sure the players don't get in the way of finishers while trying to hear you speak.
Mike | | | Re: Div11 H17 Championship and Points Regatta at Rock Hall Y
[Re: brucat]
#192589 10/03/09 09:36 PM 10/03/09 09:36 PM |
Joined: Jan 2004 Posts: 1,884 Detroit, MI mbounds
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Posts: 1,884 Detroit, MI | Matt,
The scenario you described (classes running into one another on the course) happends anyway when you get beyond 2 or 3 classes on the same course. Sure, we can minimize it with timing (wait for the lead class to be around the gate before sending the 3rd start), but once you get past 3 fleets, it's almost impossible to avoid all issues. While dual weather marks helps, they all need to go through the gate eventually...
Other than holding everyone back to reset the course, do you have a better option?
Mike Timing becomes exquisite with 4 or more starts. Or - you can go back to the mid-course line, which works really well in this situation (more than 3 starts). | | | Re: Div11 H17 Championship and Points Regatta at Rock Hall Y
[Re: HMurphey]
#192613 10/04/09 05:37 PM 10/04/09 05:37 PM |
Joined: Jan 2004 Posts: 1,884 Detroit, MI mbounds
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Posts: 1,884 Detroit, MI | You're misunderstanding the problem I was addressing, Harry.
The problem - having a start when a previous class is going the gate (when the gate is located directly upwind of the signal boat), thus creating significant interference between the two classes.
The "old school" solution when you've got more than four classes is to have the start/finish line mid-course, so that boats going through the gate don't interefere with classes still starting. However, this type of course is harder to manage in shifty wind.
Typically, we try to have 12 minute upwind legs on a 45 minute race. Downwind legs take less time, especially for spinnaker boats and the difference is more pronouced as the wind velocity increases.
With 5 minute "rolling" starts, you can easily get 4 classes off without interference at the gate (gate directly upwind of the signal boat). If you have a significant shift, you can signal a change to the boats starting with the "C" over class flag and then to the boats already on the course with a "C" flag at the gate. It requires you to be on your toes as a race officer, a reliance on your timer to keep things going in the "back" of the signal boat and a mark boat operator that knows what they're doing.
It is cool when you can pull something like that off - and all the competitors get it. | | |
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