| F16 Australian Yardstick #204438 02/26/10 06:22 PM 02/26/10 06:22 PM |
Joined: Feb 2008 Posts: 242 Brisveagas Aido OP
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Posts: 242 Brisveagas | Well thanks to Bundy and his one regatta on an f16 (that he didn't even win) the f16 yardstick has been adjusted to the same as an f18.
I think the f18 sailors really have their noses out of joint. Pretty funny.
Aido Viper 288
| | | Re: F16 Australian Yardstick
[Re: Aido]
#204442 02/26/10 06:59 PM 02/26/10 06:59 PM |
Joined: Jun 2001 Posts: 3,293 Long Beach, California John Williams
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Posts: 3,293 Long Beach, California | Most handicap systems have the F16 and the F18 very close to bang equal. The US is probably the last holdout now that Oz has clued in. And that has more to do with administration than performance differences.
John Williams
- The harder you practice, the luckier you get - Gary Player, pro golfer
After watching Lionel Messi play, I realize I need to sail harder.
| | | Re: F16 Australian Yardstick
[Re: John Williams]
#204449 02/26/10 07:34 PM 02/26/10 07:34 PM |
Joined: Aug 2002 Posts: 396 Annapolis Md. LuckyDuck
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Posts: 396 Annapolis Md. | John. Do you know if there any chance that the F-16 number might be updated this year? Ed
Still hazey after all these beers. F-16 Falcon #212
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[Re: LuckyDuck]
#204450 02/26/10 07:47 PM 02/26/10 07:47 PM |
Joined: Jun 2001 Posts: 3,293 Long Beach, California John Williams
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Posts: 3,293 Long Beach, California | Since Darline's death, I am not sure there is a chairperson for that committee. Currently, there are a number of "members at large" listed, but no chair.
John Williams
- The harder you practice, the luckier you get - Gary Player, pro golfer
After watching Lionel Messi play, I realize I need to sail harder.
| | | Re: F16 Australian Yardstick
[Re: John Williams]
#204463 02/26/10 10:29 PM 02/26/10 10:29 PM |
Joined: Dec 2005 Posts: 1,121 Eastern NC, USA tshan
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Posts: 1,121 Eastern NC, USA | Most handicap systems have the F16 and the F18 very close to bang equal. The US is probably the last holdout now that Oz has clued in. And that has more to do with administration than performance differences. F16 US DPN = 63.0 F18 US DPN = 62.4 Not a bunch of difference, imo. Now check this one out: F17 US DPN = 66.7 Go figure ... those are some quick boats. Schneider made a comment a few weeks ago that the mid-year change to US F16 DPN change was not related to new data import (I KNOW some new regatta data was added) - but rather by discussion and arbitration. Is that true?
Tom | | | Re: F16 Australian Yardstick
[Re: Aido]
#204465 02/26/10 11:14 PM 02/26/10 11:14 PM |
Joined: Apr 2003 Posts: 1,669 Melbourne, Australia Tornado_ALIVE
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Posts: 1,669 Melbourne, Australia | Well thanks to Bundy and his one regatta on an f16 (that he didn't even win) the f16 yardstick has been adjusted to the same as an f18.
I think the f18 sailors really have their noses out of joint. Pretty funny. Please be aware, Kurnell has manually adjusted the VYC themself and are not the same as the true current VYC. Basically the race committee were concerned the smaller 14 footers (mostly retired sailors) were not winning their fair share of races against the higher performance boats (sailed by sailors who train hard and regularly attend Nationals and Worlds) and decided to make their own changes. So, the F16 Yardstick is still 2.5 minutes for every 100 behind the F18, but only .5 Minute according to Kurnell. And I think you will find the F18 sailors care a lot less (do not care at all) then the F16 sailors about this. KCC's adjusted VYC / True VYCMaricat 4.3 Cat – 94 / 94Nacra 14sq – 84.5 / 84.5Narcra 5.0 - 83 / 81Taipan 4.9 Cat - 75.5 / 76.5Taipan 4.9 Sloop - 72.5 / 73.5Narcra 5.8 - 72 / 72.5F16 - 68 / 71.5A Class - 69.5 / 70.5F18 - 67.5 / 69Tornado - 64.5 / 65 | | | Re: F16 Australian Yardstick
[Re: tshan]
#204466 02/27/10 12:01 AM 02/27/10 12:01 AM |
Joined: Jun 2001 Posts: 3,293 Long Beach, California John Williams
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Posts: 3,293 Long Beach, California | F16 US DPN = 63.0 F18 US DPN = 62.4
Not a bunch of difference, imo. Now check this one out:
F17 US DPN = 66.7
Go figure ... those are some quick boats.
Schneider made a comment a few weeks ago that the mid-year change to US F16 DPN change was not related to new data import (I KNOW some new regatta data was added) - but rather by discussion and arbitration. Is that true?
I think the committee would benefit greatly from balance and leadership.
John Williams
- The harder you practice, the luckier you get - Gary Player, pro golfer
After watching Lionel Messi play, I realize I need to sail harder.
| | | Re: F16 Australian Yardstick
[Re: Tornado_ALIVE]
#204471 02/27/10 04:37 AM 02/27/10 04:37 AM |
Joined: Jun 2001 Posts: 9,582 North-West Europe Wouter
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Posts: 9,582 North-West Europe | Stephen, Do you have a link to the numbers you quote ? Because when I google VYC yardsticks I end up at this link : http://www.vic.yachting.org.au/site/yachting/vic/downloads/Yardsticks05_06%20new3.pdfWhich specifies : F18 70.00 F16 71.00 A-class 71.00 And that is what I remember from the race results that Gary'd put in. A difference of only 1.4% in time relative to the F18's or 51 seconds slower per hour of bouy racing. A number very much in line with Texel rating 102/101 = 0.99% = 36 seconds slower per hour bouy racing. SCHRS (ISAF) for 2-up mode gives 1.008/1.005 = 0.30% or 11 seconds slower per hour bouy racing. The SCHRS 1-up rating is waaaaay off though. The USPN rating hads been moved to the same ratio ; 63.0/62.4 = 0.96% = 35 seconds slower per hour bouy racing. I think this situation has existed for 1.5 years now and seems fair in my opinion. So, the F16 Yardstick is still 2.5 minutes for every 100 behind the F18, but only .5 Minute according to Kurnell.
I think you make a small error here. The Kurnell ratings you provide suggest that the F16's are slower then the F18's over 100 minutes of racing by 0.74% or 44 seconds = 0,75 minute. For an hour of bouy racing the difference is only 27 seconds; very much in line with the other rating systems. They may actually be doing the right thing at Kurnell. Thanks, Wouter
Last edited by Wouter; 02/27/10 04:50 AM.
Wouter Hijink Formula 16 NED 243 (one-off; homebuild) The Netherlands
| | | Re: F16 Australian Yardstick
[Re: John Williams]
#204472 02/27/10 04:39 AM 02/27/10 04:39 AM |
Joined: Jan 2009 Posts: 5,525 pgp
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Posts: 5,525 | This is a very good time to change the system. I do not think Darline can be replaced.
Pete Pollard Blade 702
'When you have a lot of things to do, it's best to get your nap out of the way first.
| | | Re: F16 Australian Yardstick
[Re: tshan]
#204481 02/27/10 08:23 AM 02/27/10 08:23 AM |
Joined: Aug 2002 Posts: 396 Annapolis Md. LuckyDuck
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Posts: 396 Annapolis Md. | Tom. That is true. Just ask the greatest uni sailor in the world. I'm glad it was changed though. Ed
Still hazey after all these beers. F-16 Falcon #212
| | | Re: F16 Australian Yardstick
[Re: LuckyDuck]
#204493 02/27/10 11:44 AM 02/27/10 11:44 AM |
Joined: Dec 2005 Posts: 1,121 Eastern NC, USA tshan
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Posts: 1,121 Eastern NC, USA | Tom. That is true. Just ask the greatest uni sailor in the world. I'm glad it was changed though. Ed I am not knocking the F17 - they are really good boats (fast, refined, well built). I just wish their rating was closer to reality It's all good if that is all I have to complain abt!!!!
Tom | | | Re: F16 Australian Yardstick
[Re: Wouter]
#204509 02/27/10 06:19 PM 02/27/10 06:19 PM |
Joined: Jun 2001 Posts: 3,116 Annapolis, MD Mark Schneider
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Posts: 3,116 Annapolis, MD | The SCHRS 1-up rating is waaaaay off though. Wouter, It sounds like Kurnell did what the USPN board chose to do which is to, by decree, set the F16-two up rating slightly slower then the F18. It's not clear if they also recognize that as the breeze builds the ability to push the F16-2-up is a limitation and adjust the high wind numbers according. A single number rating system is always a limitation. Obviously the ability of portsmouth systems to arrive at fair/accurate ratings in the USA and Australia in this day and age is limited. Facts on the ground and your arguments have changed my point of view (not to mention Kurnell's). I think we agree that a measurement rule, by and large is superior to a PN system in this day and age. Your point of view is that SCHRS single handed formula is waay off. My point of view is that both Texel and SCHRS need a wind speed adjusted rating since peformance is not linear, especially for single handed spin boats. The first step though is determining what the difference is between Texel and SHCRS for single handers and whether one rule is more accurate then the other. Setting aside the red herring of a measurement certificate for F17's (which will materialize once an F17 decides to race in the EU...) What is your problem with the SCHRS single handed F16 rating formula and how does it differ from Texel's?
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