For those of you with interest, I did some calculations for the fun of it just to see how performances among the top boats compared. The spinnaker boats sailed a total rhumbline distance of 28.5 miles, the non-spinnaker boats sailed a total rhumbline distance of 26.5 miles. If you divide the rhumbline distance by elapsed time, you can get an idea of VMG for the race:
Spinnaker Boats
Lambert - CFR20 10.72 mph Smith - H20 9.66 mph Wilson - H20 9.46 mph Kelly - SC22 10.45 mph Turlington - I17R 9.33 mph
Only the spinnaker boats were eligible for the overall since they sailed the longer course. But since the difference was only 2 miles, I thought it would be interesting to use the VMG of the non-spinnaker boats and estimate their elapsed time and corrected time if they had sailed the longer course. This is what I got:
One last item in the comparison above. This was a steeplechase format racing around permanent marks located in Choctawhatchee Bay in 10-15 knots of wind. The spinnaker boats probably got to use their chutes for 25% - 30% of the rhumbline distance of the race. It would be interesting to see how close it would have been if the actual utilization of the chutes would have been closer to 50%. This at least leads me to believe that the modifiers for spinnakers in the Portsmouth ratings are in the ballpark.
Fun stuff.
Re: Great Bay race 2005 Results
[Re: Acat230]
#51729 06/28/0505:43 PM06/28/0505:43 PM
Yeah - but we need to get out of this habit of thinking we can score spinnaker and non-spinnaker boats together in a distance race. It will never work out fairly because 50% spinnaker use (on which the rating is based) will hardly ever happen.
Jake Kohl
Re: Great Bay race 2005 Results
[Re: Jake]
#51730 06/28/0507:57 PM06/28/0507:57 PM
Yeah - but we need to get out of this habit of thinking we can score spinnaker and non-spinnaker boats together in a distance race. It will never work out fairly because 50% spinnaker use (on which the rating is based) will hardly ever happen.
Yep! Keep em seperate! DPN is a POS and to put vastly dissimilar boats in the same group is pointless. IMO spin and non-spin are vastly dissimilar.
For every data point you can show me they are in the ballpark I can show 2 where they aren't even close.
If you want to run with the spin class put one on your 'A'. Brett Moss did it and is beating the living [censored] out of us down here.
"Do or do not. There is no try." - Yoda "Excuses are the tools of the weak and incompetent" - Two sista's I overheard in the hall "You don't have to be a brain surgeon to be a complete idiot, but it helps"
