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Board » General Discussion » IMSYC 2011

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Posted by
76Trombones


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2009-08-03 18:04:56
2011-06-17 16:09:46 - Re: IMSYC 2011
WhyNot said @ 2011-06-17 16:07:16:
76: How do I send the grib files to you? Do you have a "junk e-mail addy - where you let ppl you don't know send you stuff.
Hi WN - email is listed in my profile, just change _at_ to @. Thanks!
Posted by
WhyNot


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2011-06-17 16:43:16 - Re: IMSYC 2011
OK, I'll send them to you.

But I disagree with your statement that it makes no diff to us. And now I'm getteing real petty and whiny.
It makes a diff overall ranking wise and its the overall position that is used in SOLs ranking. Speaking purely for my self - dont think anybody else is as whiny as I am - I know that several uprisings passed me on the final leg. Them TWA 180 and my gybing at VMG. I sat there scratching my head and fired up Navmonpc (and I know it is not acurate) but Whoaa!! How dey do dat???

Some may have noticed that I'm a really competetive kinda guy:)
Posted by
Tempest


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2009-06-16 17:44:17
2011-06-17 17:00:27 - Re: IMSYC 2011
Tom, i don't mind you beeing competitive.
But you should also have been competitive before the race when comparing polars.
It was as obvious then as it is now that uprising had that polarbend at certain windspeeds.
For reasons known to you you choose i believe the Katrinautic as you thought that was the best boat. Complaining in hindsight is always a bit easy . I wonder if we would have had this same discussion as katrinautic had won?
Posted by
Rod


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2011-06-17 17:09:44 - Re: IMSYC 2011
To A Gage: I didn't notice the discrepancy, and I went over those polar diagrams in non-mathematical detail---and nobody else mentioned them in the chat. I chose 'uprising' on the basis of better up and down-wind performance at all wind speeds, and fastest speed on a reach----but I didn't spot the "Faster-than-the-wind at 180" at all. I hope that the designer receives all due credit for his effort----and wonder how his work compares with that of other professionally designed boats--- I wonder if some of these designs etc could be made available to SOLers---just for interest's sake. The race is over and I'm reasonably happy--except for an unfortunate course-HOOK, due to a middle of the night wind change.But that was my fault!!!

--- Last Edited by Rod at 2011-06-17 17:15:30 ---
If it breaks, it's not strong enough--if it doesn't, it's too heavy.
Posted by
WhyNot


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2011-06-17 17:44:02 - Re: IMSYC 2011
Tempest: I was competetive in my selection. I decided that all the "realy fast guys" would choose uprising, so I figgered i'd be better off in the "second best" boat. I'm also a sucker for a pretty face:)
Anyhoo, as history will show - it worked.

The real issue here is the "absolute denial" and wierd explanations after the fact.
All boats have bulges in their polars.
The keel dipping lower in water giving greater speed at that windspeed.
Boats can sail faster than the wind at TWA 180.
Its not uncommon that boats can be designed to sail faster at a specific windspeed and direction.
One polar is in m/s but the one useg in the race is in knots. I could go on.

Its just a game, so somebody could have said: Oopss - we really screwed up here. And that would have been it. End of discussion.

Tom
Posted by
WhyNot


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2011-06-17 17:47:25 - Re: IMSYC 2011
And Tempest. We would have had the same ddiscussion if katrin had had the same bulge. As I said: "I'm a real competetive guy" and I would have pointed it out myself.
Posted by
WhyNot


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2011-06-17 18:52:18 - Re: IMSYC 2011
76: I'm new to this. Didn't even know we had public profiles. Eh - I can't find them.Pls help:)

Found it. I'd put a blushing smiley here if I could find it.

--- Last Edited by Tom Nordahl at 2011-06-17 18:55:45 ---
Posted by
76Trombones


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2011-06-17 18:57:25 - Re: IMSYC 2011
No problem! A bit hidden.

Click any of our names and it should link to the profile. You can change what is visible to others by editing your own via the link in the login box.
Posted by
76Trombones


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2011-06-17 21:05:26 - Re: IMSYC 2011
Here are the ratings based on WhyNot's archived weather added to mine. There are still a few gaps, but should be much closer than the ones based on the pre-race forecast:

imsyc_uprising 1.000
imsyc_katrinautic2011 1.061
imsyc_falcon 1.080
imsyc_nyd66 1.091
imsyc_Raspberry 1.094
imsyc_JBSD66 1.135
imsyc_scandinavia 1.136
imsyc_j 1.149
imsyc_mano 1.167
imsyc_lb66 1.189
imsyc_pjtr 1.199

*Corrected time ranking attached for all boats currently finished.* Congrats to all concerned!

The ranking is still top heavy with Uprisings and Katrins, but most of the "usually" fast crowd chose those boats. I'll do a final calc if anyone can fill in the missing gribs.
Attachments
Posted by
A2


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2009-10-26 00:39:42
2011-06-17 22:59:41 - Re: IMSYC 2011
Comparative Ordinal Ranking Evaluation

Boat, Upwind, Downwind, Design

A: __ 9.46 __ 9.28 _ uprising
B: __ 8.35 __ 8.18 _ katrinautic
C: __ 8.22 __ 6.49 _ falcon
D: __ 6.37 __ 7.64 _ nyd66
E: __ 6.03 __ 6.82 _ raspberry
F: __ 3.59 __ 5.66 _ scandinavia
G: __ 4.87 __ 3.62 _ JBSD66
H: __ 4.37 __ 2.56 _ j
I: __ 2.32 __ 1.31 _ mano
J: __ 0.69 __ 2.18 _ pjtr
K: __ 0.72 __ 1.27 _ lb66
None so blind

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