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Re: Where's Jake!? [Re: David Ingram] #171014
03/09/09 04:36 PM
03/09/09 04:36 PM
Joined: Jan 2009
Posts: 5,525
pgp Offline OP
Carpal Tunnel
pgp  Offline OP
Carpal Tunnel

Joined: Jan 2009
Posts: 5,525


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.

-- Have You Seen This? --
Re: Where's Jake!? [Re: RickWhite] #171016
03/09/09 04:43 PM
03/09/09 04:43 PM

A
andrewscott
Unregistered
andrewscott
Unregistered
A



Originally Posted by RickWhite
To make the comparison then, put Robbie on both boats.


He must have really long arms to sail 2 boats at the same time!

Re: Where's Jake!? [Re: Jake] #171018
03/09/09 04:57 PM
03/09/09 04:57 PM
Joined: Jun 2001
Posts: 3,906
Clermont, FL, USA
David Ingram Offline
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David Ingram  Offline
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Clermont, FL, USA
You ready to go measurement yet? You had some good points and measurement isn't perfect. At least with measurement we can get all spun up over different flaws in the system.



David Ingram
F18 USA 242
http://www.solarwind.solar

"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"
Re: Where's Jake!? [Re: David Ingram] #171026
03/09/09 06:30 PM
03/09/09 06:30 PM
Joined: Jun 2001
Posts: 12,310
South Carolina
Jake Offline
Carpal Tunnel
Jake  Offline
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Posts: 12,310
South Carolina
Originally Posted by David Ingram
You ready to go measurement yet? You had some good points and measurement isn't perfect. At least with measurement we can get all spun up over different flaws in the system.



Sure - you lead this time, I'll follow!


Jake Kohl
Re: Where's Jake!? [Re: David Ingram] #171042
03/09/09 09:22 PM
03/09/09 09:22 PM
Joined: Jun 2001
Posts: 1,911
South Florida & the Keys
arbo06 Offline
Pooh-Bah
arbo06  Offline
Pooh-Bah

Joined: Jun 2001
Posts: 1,911
South Florida & the Keys
How about a round robin with the 2 boats? Shake em' down....


Eric Arbogast
ARC 2101
Miami Yacht Club
Re: Where's Jake!? [Re: arbo06] #171053
03/10/09 06:03 AM
03/10/09 06:03 AM
Joined: Jun 2001
Posts: 3,906
Clermont, FL, USA
David Ingram Offline
Carpal Tunnel
David Ingram  Offline
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Posts: 3,906
Clermont, FL, USA
Make it happen, and make sure you go through all the permutations, or least the boats that are still showing up for regattas.


David Ingram
F18 USA 242
http://www.solarwind.solar

"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"
Re: Where's Jake!? [Re: David Ingram] #171054
03/10/09 06:30 AM
03/10/09 06:30 AM
Joined: Jan 2005
Posts: 6,049
Sebring, Florida.
Timbo Offline
Carpal Tunnel
Timbo  Offline
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Posts: 6,049
Sebring, Florida.
Our friends across the pond have already done all the work. All we need to do is decide which system to use.


Blade F16
#777
Re: Where's Jake!? [Re: RickWhite] #171064
03/10/09 08:27 AM
03/10/09 08:27 AM
Joined: Jun 2001
Posts: 9,582
North-West Europe
Wouter Offline
Carpal Tunnel
Wouter  Offline
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Joined: Jun 2001
Posts: 9,582
North-West Europe
Quote

Perhaps many of you don't remember Wouter lobbying to get the F16 number lower. Guess he thought that would attract more sailors as it led one to believe the boat was super fast. It was not.



Actually, I truly believe the F16's and Taipan to be alot faster then the USPN numbers suggested till the recent change. It is about right now.

We had the funny situation that in Australia, were the Taipans were/are raced actively, the sloop Taipan without a spi was rated faster in relation to the F18's and A's then the F16's (WITH a spi) were in the USA. Obviously something was wrong here and it wasn't the Australia handicap system.

Wouter

Last edited by Wouter; 03/10/09 08:33 AM.

Wouter Hijink
Formula 16 NED 243 (one-off; homebuild)
The Netherlands
Re: Where's Jake!? [Re: Wouter] #171069
03/10/09 08:49 AM
03/10/09 08:49 AM
Joined: Jan 2009
Posts: 5,525
pgp Offline OP
Carpal Tunnel
pgp  Offline OP
Carpal Tunnel

Joined: Jan 2009
Posts: 5,525
A class 64.5/F16 63.0 That can't be right. . .can it?


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: Where's Jake!? [Re: pgp] #171072
03/10/09 09:25 AM
03/10/09 09:25 AM
Joined: Jun 2001
Posts: 12,310
South Carolina
Jake Offline
Carpal Tunnel
Jake  Offline
Carpal Tunnel

Joined: Jun 2001
Posts: 12,310
South Carolina
Originally Posted by pgp
A class 64.5/F16 63.0 That can't be right. . .can it?


What about it is wrong? The F16 is (should be) faster than an a-cat...while it is a little heavier, it's got at least twice the sail area for heaven's sake! Have you ever tried to sail downwind with only a mainsail?


Jake Kohl
Re: Where's Jake!? [Re: David Ingram] #171073
03/10/09 09:32 AM
03/10/09 09:32 AM
Joined: Apr 2008
Posts: 921
Alachua, FL
Mugrace72 Offline
old hand
Mugrace72  Offline
old hand

Joined: Apr 2008
Posts: 921
Alachua, FL

Originally Posted by David Ingram
Make it happen, and make sure you go through all the permutations, or least the boats that still showing up for regattas.


OK, I am a fool for saying this, but I will "volunteer" to get involved. I swore that I wouldn't get involved in "organizing" stuff again....but there seems a need for someone to step up.

My background:

Charter founder for PHRF in South Florida (1978)

Tornado Class measurer...(1974-76)

Organizer Key West to Cuba race (1978-79)

Key West Race Week founder with KWSC as fleet captain (1977).

yada, yada, yada....

Can we have a meeting at Spring Fever with you (DI) , Jake, and a few interested folks?

Tell me what has been done so we don't gave to start completely over. What sytem ? Texel...SCHRS?

I would think that we should get the measurement system in place and try it parallel to PH until we see how it does.

This should just be regionalized within Florida and the Mid-South as a trial. Regatta organizers can choose to use it if they want. We need to get a few key boats rated first.

Right now I have no clue what the parameters are for either system, but I am a fast learner.

Let's talk..guys. I am willing if you actually are ready to give it a go.


Jack Woehrle
Hobie Wave #100, Tiger Shark III
HCA-NA 5022-1
USSailing 654799E
Alachua FL/Put-In-Bay
Re: Where's Jake!? [Re: pgp] #171075
03/10/09 09:37 AM
03/10/09 09:37 AM
Joined: Jun 2001
Posts: 9,582
North-West Europe
Wouter Offline
Carpal Tunnel
Wouter  Offline
Carpal Tunnel

Joined: Jun 2001
Posts: 9,582
North-West Europe

Quote

A class 64.5/F16 63.0 That can't be right. . .can it?



Well, that is not an easy question to answer. Look at the situation from this perspective.

Making predictions of the F16 performance compared to the F18's, I-20's and even the Nacra 17's/FX-ones/iCat is easy as all of these boats are very similar in their setup. They use sails with very compareble aspect ratio's, their weight-to-power ratio's and heeling-to-power are very similar. The same with length to width etc. They all use spinnakers and require very similar sailing skills for optimal performance. As a result, wind and sea-state conditions as well as sailed courses impact the same on all of these designs with only a rather small set of (small) exceptions. This means that performance differences are largely determined by a few equalities or inequalities in key ratio's/parameters.

The A-cat however is not very similar to the group of boats named above. Its ratio's lie far away from those of the others and different conditions or courses impact differently on the A-cat design then they do to the other designs. It is hard if not impossible to summerize the relative performances in one simple statement or even one simple number. The situation is just too multifacetted to be condensed to such a simple (1-dimensional) benchmark.

It is my experience and opinion that the F16's are at least as fast as the A's on a windward-leeward course in medium conditions. In the light stuff it all dependents on whether the wind is just strong enough to fill the spi. If it doesn't then the A's are faster. In the rough stuff it all comes down whether the conditions allow the spi to be set and douced without capsizing. It is also my opinion that the A's can be fast downwind but only with sufficiently developped windthing skills and these are harder to learn then riding the spinnaker. So for most recreational sailors and racers the F16 will be faster over a significant range of conditions. Partly because the skills to effectively fly the spi are relatively easy to learn.

Personally, I don't think F16 to A = 63.0 to 64.5 is a large difference. It is about a minute per 45 minute bouy race. Even if that ratio is wrong, I still don't believe it is far of the mark. I think, by crude averaging, that the A's are properly placed just a tad slower then the F18's (and F16's) while recognizing that they have convincing sweet spots like sub-spinnaker light winds where they are simply outperformaning nearly all others.

Whether the difference of 3.4% that currently exists between the F18's and A's under USPN is right is something that future results must prood or disproof.

Wouter




Last edited by Wouter; 03/10/09 09:40 AM.

Wouter Hijink
Formula 16 NED 243 (one-off; homebuild)
The Netherlands
Re: Where's Jake!? [Re: Jake] #171077
03/10/09 09:43 AM
03/10/09 09:43 AM
Joined: Jan 2009
Posts: 5,525
pgp Offline OP
Carpal Tunnel
pgp  Offline OP
Carpal Tunnel

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Posts: 5,525
What Woot said. smile And yes, the H17 downwind put me off racing for years!


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: Where's Jake!? [Re: Mugrace72] #171079
03/10/09 09:46 AM
03/10/09 09:46 AM
Joined: Jun 2001
Posts: 3,293
Long Beach, California
John Williams Offline
Carpal Tunnel
John Williams  Offline
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Joined: Jun 2001
Posts: 3,293
Long Beach, California
Careful, Jack... someone might take you seriously. That's a huge job. It is on the agenda for the Multihull Council meeting later this month in Denver.

http://www.ussailing.org/events/meet09sp/documents.asp

As of this posting, the Multihulls are the only ones to have posted an agenda in accordance with Bylaws. HA!

The truth is and has been for some time, that Darline could use some help.


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: Where's Jake!? [Re: John Williams] #171082
03/10/09 10:02 AM
03/10/09 10:02 AM
Joined: Apr 2008
Posts: 921
Alachua, FL
Mugrace72 Offline
old hand
Mugrace72  Offline
old hand

Joined: Apr 2008
Posts: 921
Alachua, FL
Originally Posted by John Williams
Careful, Jack... someone might take you seriously. That's a huge job. It is on the agenda for the Multihull Council meeting later this month in Denver.


The truth is and has been for some time, that Darline could use some help.


I assume you'll be at SF. Perhaps you can bring me up to speed on this. I'm not really interested in getting involved with PH. My interest would be in a measurement based alternative.

.....and I've never been shy of "huge jobs".

Last edited by Mugrace72; 03/10/09 10:13 AM.

Jack Woehrle
Hobie Wave #100, Tiger Shark III
HCA-NA 5022-1
USSailing 654799E
Alachua FL/Put-In-Bay
Re: Where's Jake!? [Re: Mugrace72] #171088
03/10/09 10:26 AM
03/10/09 10:26 AM
Joined: Jun 2001
Posts: 12,310
South Carolina
Jake Offline
Carpal Tunnel
Jake  Offline
Carpal Tunnel

Joined: Jun 2001
Posts: 12,310
South Carolina
Originally Posted by Mugrace72
Originally Posted by John Williams
Careful, Jack... someone might take you seriously. That's a huge job. It is on the agenda for the Multihull Council meeting later this month in Denver.


The truth is and has been for some time, that Darline could use some help.


I assume you'll be at SF. Perhaps you can bring me up to speed on this. I'm not really interested in getting involved with PH. My interest would be in a measurement based alternative.

.....and I've never been shy of "huge jobs".


There are two schools of thought:

1) give portsmouth the help it needs to continue.
2) go strictly to a measurement based system (personally, I'm not a fan of this and will be glad to discuss in more detail)
3) design a combined system that utilizes the strengths of both the portsmouth and measurement based systems to overcome the weaknesses of both.

There's no need to reinvent a new wheel here - there are successful measurement based systems and successful performance based systems. Consequently they both have polar opposing strengths weaknesses that could benefit from the other.




Damnit Ding....you're getting a new shirt this year.


Jake Kohl
Re: Where's Jake!? [Re: Jake] #171093
03/10/09 10:38 AM
03/10/09 10:38 AM
Joined: Apr 2008
Posts: 921
Alachua, FL
Mugrace72 Offline
old hand
Mugrace72  Offline
old hand

Joined: Apr 2008
Posts: 921
Alachua, FL
Originally Posted by Jake



There are two schools of thought:

1) give portsmouth the help it needs to continue.
2) go strictly to a measurement based system (personally, I'm not a fan of this and will be glad to discuss in more detail)
3) design a combined system that utilizes the strengths of both the portsmouth and measurement based systems to overcome the weaknesses of both.

There's no need to reinvent a new wheel here - there are successful measurement based systems and successful performance based systems. Consequently they both have polar opposing strengths weaknesses that could benefit from the other.


I am only proposing a face to face meeting at this point for some discussion that might involve RUM DRINKS.

I too am sceptical of a measurement system, but it seems they are popular elsewhere.

I never liked PH because of the flaws and apathy in the reporting process.

PHRF works better assuming you have handicappers who are totally unbiased.

A measurement system eliminates personalities and incomplete/flawed reporting data.

Of course the formula has to be sound, but it seems the homework has been done in the EU arena.

I would not want to dismantle or impede PH in any way.


Jack Woehrle
Hobie Wave #100, Tiger Shark III
HCA-NA 5022-1
USSailing 654799E
Alachua FL/Put-In-Bay
Re: Where's Jake!? [Re: Mugrace72] #171095
03/10/09 10:48 AM
03/10/09 10:48 AM
Joined: Jul 2001
Posts: 1,253
Columbia South Carolina, USA
dave mosley Offline
veteran
dave mosley  Offline
veteran

Joined: Jul 2001
Posts: 1,253
Columbia South Carolina, USA
someone say Rum? I'll talk about it! uhh, what was the topic?


The men were amazed, and said, "What kind of a man is this, that even the winds and the sea obey Him?" Matthew 8:27





Re: Where's Jake!? [Re: Mugrace72] #171106
03/10/09 11:46 AM
03/10/09 11:46 AM
Joined: Jun 2001
Posts: 12,310
South Carolina
Jake Offline
Carpal Tunnel
Jake  Offline
Carpal Tunnel

Joined: Jun 2001
Posts: 12,310
South Carolina
Originally Posted by Mugrace72
Originally Posted by Jake



There are two schools of thought:

1) give portsmouth the help it needs to continue.
2) go strictly to a measurement based system (personally, I'm not a fan of this and will be glad to discuss in more detail)
3) design a combined system that utilizes the strengths of both the portsmouth and measurement based systems to overcome the weaknesses of both.

There's no need to reinvent a new wheel here - there are successful measurement based systems and successful performance based systems. Consequently they both have polar opposing strengths weaknesses that could benefit from the other.


I am only proposing a face to face meeting at this point for some discussion that might involve RUM DRINKS.

I too am sceptical of a measurement system, but it seems they are popular elsewhere.

I never liked PH because of the flaws and apathy in the reporting process.

PHRF works better assuming you have handicappers who are totally unbiased.

A measurement system eliminates personalities and incomplete/flawed reporting data.

Of course the formula has to be sound, but it seems the homework has been in the EU arena.

I would want not dismantle or impede PH in any way.


If you'll allow me to remove the "might" in that statement by bringing some supplies, you got it. grin


Jake Kohl
Re: Where's Jake!? [Re: Jake] #171109
03/10/09 12:01 PM
03/10/09 12:01 PM
Joined: Apr 2008
Posts: 921
Alachua, FL
Mugrace72 Offline
old hand
Mugrace72  Offline
old hand

Joined: Apr 2008
Posts: 921
Alachua, FL
Originally Posted by Jake
If you'll allow me to remove the "might" in that statement by bringing some supplies, you got it. grin


I will bring Appleton Reserve.


Jack Woehrle
Hobie Wave #100, Tiger Shark III
HCA-NA 5022-1
USSailing 654799E
Alachua FL/Put-In-Bay
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