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Courses - fast fleets at Grafham open

Printed From: Yachts and Yachting Online
Category: Multihulls
Forum Name: Dinghy multihulls
Forum Discription: For those who prefer two (or more) hulls to one!
URL: http://www.yachtsandyachting.com/forum/forum_posts.asp?TID=3266
Printed Date: 29 Jun 25 at 2:41am
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Topic: Courses - fast fleets at Grafham open
Posted By: Scooby_simon
Subject: Courses - fast fleets at Grafham open
Date Posted: 06 Aug 07 at 11:35pm

The powers at be are planning the courses for the Cat open are Grafham.  I believe that last year it got a bit busy on the fast course and so we are looking for ideas and to see if classes would consider deviating from strict W/L courses.

For those that don’t know we have the following numbers on the fast fleet:

Fast handicap fleet (small last year, may be bigger this)
Hurricane 5.9 (15)
Fast single hander (29)
F18 (21)
Spitfire (18)

Lake shape allows for w/l course of approx 1 mile in all wind directions.


Last year, there was a fair bit of congestion at the leeward mark, we are trying to improve this for this year; we are not sure a gate will really help.

Last year it was W/L course  (A to B and thru the line ?---CTB, line ranked as an obstruction down wind)


A


?-------CTB

B


Options for next year are adding extra windward (or leeward marks) or adopting the course used at Eurocat

 

AA         &nbs p;         &nbs p;         &nbs p;   A

 

 

                                


BB                                    ?B
                                           \
                                             \
                                               \
                                              CTB


Distance between A->AA and BB->B can be about 300m
Course might be for 2 fleets
Fleet 1:
Start, A, AA, BB, AA, BB, AA,etc..., BB, B, ?--Finish


Fleet 2:

Start, A, B, A, B, A, etc, B, ?--Finish

 


But this would need 2 fleets do move away from strictly W/L courses

The problem with the above is that it is difficult to shorten as you need an extra boat at BB to flag it (might be difficult if it’s howling as there are also another 110+ boats on the “slow” cat course, so we won't have "spare" safety boats).  And on Sunday there will also be around 100 boats club racing.

Has anyone else got suggestions ?

 

 

Cheers


Simon



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Replies:
Posted By: Worthy
Date Posted: 07 Aug 07 at 8:45am
I will have a think, but the F18's will push for a strict windward leeward course with a spacer and leeward gate.  Otherwise the open will not qualify to be included in their TT series.

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Posted By: Scooby_simon
Date Posted: 07 Aug 07 at 10:46am

Originally posted by Worthy

I will have a think, but the F18's will push for a strict windward leeward course with a spacer and leeward gate.  Otherwise the open will not qualify to be included in their TT series.

 

Is this a change in requirements as last year there was no leeward gate ?



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Posted By: AdrianM
Date Posted: 07 Aug 07 at 11:25am

Simon

From memory last year the two areas that I thought maybe needed addressing were : -
a) Overlapping of courses on Sunday when the club racing was taking place - thus we had fast boats screaming downwind getting tangled up with slow boats heading up their beat. 
b) Leeward mark was a bit busy which might have been alleviated had there been a gate rather than a single mark.
Of the two points above I would have said the former was more key to fix as a highspeed upwind/downwind collision is going to hurt more than just the boat.

Adrian.



Posted By: Worthy
Date Posted: 07 Aug 07 at 11:59am
Originally posted by Scooby_simon

Originally posted by Worthy

I will have a think, but the F18's will push for a strict windward leeward course with a spacer and leeward gate.  Otherwise the open will not qualify to be included in their TT series.

 

Is this a change in requirements as last year there was no leeward gate ?



Sorry, no change, was just in a rush.

The requirement is for a windward - leeward course.

We prefer a leeward gate and spreader mark but if that is not possible then such is life.


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Posted By: anewscents
Date Posted: 07 Aug 07 at 1:37pm

You could always cancel club racing for the weekend (like some other clubs) and let the committee know that a Vortex is a mono-hull.  Might create some room...and debate!!!



Posted By: Scooby_simon
Date Posted: 07 Aug 07 at 3:46pm
Originally posted by anewscents

You could always cancel club racing for the weekend (like some other clubs) and let the committee know that a Vortex is a mono-hull.  Might create some room...and debate!!!

 

We will not cancel club racing.



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Posted By: gary145
Date Posted: 07 Aug 07 at 6:27pm

i seem to recall 2 years ago the wind was from a different direction and there was a lot more room.

can you just arrange that direction?

would 2 leeward marks (one upwind a bit from the other) for different speed boats help?



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Posted By: Scooby_simon
Date Posted: 07 Aug 07 at 8:28pm
Originally posted by gary145

i seem to recall 2 years ago the wind was from a different direction and there was a lot more room.

can you just arrange that direction?

would 2 leeward marks (one upwind a bit from the other) for different speed boats help?

 

But the thing is in this case there is still a problem, as how do you split the fleets?

F18 Hcap is 1.005; Spitfiure 1.035, Hurricane 1.007 / 1.009 and Handicap 1.07 to 0.98ish



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Posted By: gary145
Date Posted: 10 Aug 07 at 6:24pm
Originally posted by Scooby_simon

Originally posted by gary145

i seem to recall 2 years ago the wind was from a different direction and there was a lot more room.

can you just arrange that direction?

would 2 leeward marks (one upwind a bit from the other) for different speed boats help?

 

But the thing is in this case there is still a problem, as how do you split the fleets?

F18 Hcap is 1.005; Spitfiure 1.035, Hurricane 1.007 / 1.009 and Handicap 1.07 to 0.98ish

 

ok i should have said different classes

maybe spitfires and hurricanes sail slightly shorter course, either to windward or leeward?



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Posted By: pdwarren
Date Posted: 20 Aug 07 at 7:39pm
Originally posted by Scooby_simon

Is this a change in requirements as last year there was no leeward gate ?



I must be going mad, because I was certain there was a leeward gate last year.

One thing that might help is a bit more space between the gate and the start line.  A number of times I hit the leeward mark/gate right in the middle of another fleet's start, and was presented with a wall of close hauled, starboard tack boats.

Paul



Posted By: catmandoo
Date Posted: 21 Aug 07 at 9:53am

definately was a leeward gate and a spreader mark at top of course.

with the prevalence of spinnaker cats this is the ideal catamaran course for competive racing with no let ups and is what modern cats are designed for .

Don't recollect any serious congestion other than would normally be encountered  other than the problems of overlapping course on the Sunday

 



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Posted By: Scooby_simon
Date Posted: 21 Aug 07 at 11:34am

I was not on the "fast" course last year as I'd sold the Inter 17 and was doing some comedy Dart 18 sailing.

 

There was a gate at the leeward mark.  My mistake.



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Posted By: Shadowman
Date Posted: 22 Aug 07 at 8:51am
Just for the record, the overlap was not with club racing which was down by the dam, it was with the medium cats. I thought the gate didn't work that well in splitting the fleet but I think that was because the course was short because of the wind direction


Posted By: Nessie
Date Posted: 03 Sep 07 at 11:33am
the pin-end of the start line was very well laid.
I caught a rudder round it for a good five minutes, and it never moved!

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Nessie

(I like cats, but i couldn't eat a whole one)


Posted By: Scooby_simon
Date Posted: 03 Sep 07 at 2:06pm

Originally posted by Nessie

the pin-end of the start line was very well laid.
I caught a rudder round it for a good five minutes, and it never moved!

 

 

LOL



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Posted By: Teamvmg
Date Posted: 05 Sep 07 at 1:45pm

Not only was there a leeward gate, but the start/finish line was to leeward of the gate. The finish was between the boat and the left gate bouy. that meant that the RC had trouble keeping count of laps and finished boats at odd times.

Keep the start/fin remote from the course so that the onus is on the sailors to count laps and leave the course to finish. everyone hates going through the start/fin on each windward leg and it means that the RC have to lap count for everyone.

i don't think that the fleets are split properly, it should not be on speed but on sailing habits - mixing spinny boats with non-spinny boats on the same busy course causes problems.




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