| |  Re: Loos & Co. tension guides Inter20
[Re: samc99us]
#209192
04/22/10 11:47 AM 04/22/10 11:47 AM |
Joined: Aug 2005
Posts: 2,921
Michigan PTP 
Carpal Tunnel
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Carpal Tunnel
Joined: Aug 2005
Posts: 2,921
Michigan | I THINK, the best starting point is going to be to hoist the main and get the mast curve to fit the luff of the main through a combination of diamond wire tension and spreader rake. I have always wondered about this when people are talking about doing that. Wouldn't you want the curve of the luff to match the curve of the mast only when max downhaul is on? Theoretically, the sail matching the curve of the mast would make the sail as flat as possible, right?
Last edited by PTP; 04/22/10 12:14 PM.
| | | Re: Loos & Co. tension guides Inter20
[Re: wildtsail]
#209233
04/22/10 01:40 PM 04/22/10 01:40 PM |
Joined: Jun 2001
Posts: 3,906
Clermont, FL, USA David Ingram
Carpal Tunnel
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Carpal Tunnel
Joined: Jun 2001
Posts: 3,906
Clermont, FL, USA | So what does that mean now that it doesn't have the while racing wording? I've fired off a request for clarification along with several other questions to the international committee.
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: Loos & Co. tension guides Inter20
[Re: PTP]
#209308
04/22/10 08:59 PM 04/22/10 08:59 PM |
Joined: Mar 2009
Posts: 932
Solomon's Island, MD samc99us
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Posts: 932
Solomon's Island, MD | I THINK, the best starting point is going to be to hoist the main and get the mast curve to fit the luff of the main through a combination of diamond wire tension and spreader rake. I have always wondered about this when people are talking about doing that. Wouldn't you want the curve of the luff to match the curve of the mast only when max downhaul is on? Theoretically, the sail matching the curve of the mast would make the sail as flat as possible, right? Technically, but the way I understand it is you want the mast to be set up to match the sail such that as you increase down haul, the wrinkles in the luff come out evenly. Spreader rake has effect on this as well. I've also READ that the Tornado and 49er guys don't change this setting much if at all on the same mainsail. I also know our boat was equally fast with a setting of 41 over an 8 month period and many regattas, ranging from super light air to 20-25kts. We are still looking for the mythical 6th gear, but I think its going to come from better driving, mast rake and tension adjustments, foil perfection etc., not from diamond wire tension.
Scorpion F18
| | | Re: Loos & Co. tension guides Inter20
[Re: David Ingram]
#209309
04/22/10 09:03 PM 04/22/10 09:03 PM |
Joined: Mar 2009
Posts: 932
Solomon's Island, MD samc99us
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Posts: 932
Solomon's Island, MD | Yes Pepin technically you are correct, but the new rules weren't released to us until two days ago (Tuesday). In Chris's defense the old rule had the 'while racing' verbiage. And while we are on the subject and before you drop some coin on the new Velocitek devices you probably want to look at rule C.5.1.b.3 2010 F18 Rules So the F18's are banning GPS's (SEND or RECEIVE) except in distance events, yet requiring a magnetic steering compass? I can see the $100 bills in the TackTic executive pockets growing larger by the sentence...
Scorpion F18
| | | Re: Loos & Co. tension guides Inter20
[Re: ThunderMuffin]
#209407
04/23/10 06:38 PM 04/23/10 06:38 PM |
Joined: Mar 2009
Posts: 932
Solomon's Island, MD samc99us
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Solomon's Island, MD | I'm aware, I've probably bought 3 or 4 in my days of orienteering. I also don't consider those steering compasses...sure they'll tell you where north is but unless you mount it properly its a bad joke.
All I'm getting out of these absurd rulings is a ban on GPS, and thus a ban on Velocitek or similar devices.
Last edited by samc99us; 04/24/10 09:45 AM. Reason: chronic keyboard diahrea
Scorpion F18
| | | Re: Loos & Co. tension guides Inter20
[Re: samc99us]
#209411
04/23/10 07:43 PM 04/23/10 07:43 PM |
Joined: Sep 2002
Posts: 3,224
Roanoke Island ,N.C. Team_Cat_Fever
Carpal Tunnel
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Carpal Tunnel
Joined: Sep 2002
Posts: 3,224
Roanoke Island ,N.C. | Sam,
You type more words without stating anything new than anyone I've ever seen on here before. You deserve an award, I'll get on that. The annual Chronic keyboard diarrhea award. Done
"I said, now, I said ,pay attention boy!"
The cure for anything is salt water - sweat, tears, or the sea
Isak Dinesen
If a man is to be obsessed by something.... I suppose a boat is as good as anything... perhaps a bit better than most.
E. B. White
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