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Re: heavy downhaul in light air [Re: rehmbo] #277589
02/13/15 02:00 PM
02/13/15 02:00 PM
Joined: Dec 2001
Posts: 5,590
Naples, FL
waterbug_wpb Offline
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Naples, FL
Was it Bethwait who indicated the AWA in laminar flow (light) air is up to 10 - 20 degrees different at the top of the mast than at the water level?

But I see the greatest (personal) need for downhaul to keep the leech from hooking...


Jay

-- Have You Seen This? --
Re: heavy downhaul in light air [Re: ] #277590
02/13/15 05:30 PM
02/13/15 05:30 PM
Joined: Feb 2005
Posts: 4,118
Northfield Mn
Karl_Brogger Offline
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That's my reason for pounding on the downhaul in light air, to keep the leech from hooking and keeping a continual shape. Softer battens would also help, but I'm not a huge fan of dropping a main on the water unless it is going to stay down. Singlehanded its a frickin' pain in the butt to pull it up, and keep the boat more or less in the wind.


I'm boatless.
Re: heavy downhaul in light air [Re: Karl_Brogger] #277591
02/13/15 05:50 PM
02/13/15 05:50 PM
Joined: Jun 2001
Posts: 12,310
South Carolina
Jake Offline
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Originally Posted by Karl_Brogger
That's my reason for pounding on the downhaul in light air, to keep the leech from hooking and keeping a continual shape. Softer battens would also help, but I'm not a huge fan of dropping a main on the water unless it is going to stay down. Singlehanded its a frickin' pain in the butt to pull it up, and keep the boat more or less in the wind.


You should try that with beach wheels still tied under the hulls.


Jake Kohl
Re: heavy downhaul in light air [Re: ] #277592
02/13/15 07:56 PM
02/13/15 07:56 PM
Joined: Feb 2005
Posts: 4,118
Northfield Mn
Karl_Brogger Offline
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I've heard that works like a champ....


I'm boatless.
Re: heavy downhaul in light air [Re: Jake] #277594
02/14/15 09:14 AM
02/14/15 09:14 AM
Joined: Dec 2001
Posts: 5,590
Naples, FL
waterbug_wpb Offline
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Originally Posted by Jake

You should try that with beach wheels still tied under the hulls.



man, that gets funnier every time you say it Jake smile especially since you're a good sailor!


Jay

Re: heavy downhaul in light air [Re: Karl_Brogger] #277596
02/14/15 11:23 PM
02/14/15 11:23 PM
Joined: Aug 2007
Posts: 3,969
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brucat Offline
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Originally Posted by Karl_Brogger
That's my reason for pounding on the downhaul in light air, to keep the leech from hooking and keeping a continual shape. Softer battens would also help, but I'm not a huge fan of dropping a main on the water unless it is going to stay down. Singlehanded its a frickin' pain in the butt to pull it up, and keep the boat more or less in the wind.


Should have stayed with the Hobie 16, and attended more NAs. In RI in 2006, before the first race (in heavy air and huge seas), one of the Mexican teams intentionally capsized the boat, so they could adjust battens.

Can't make that stuff up...

Mike

Re: heavy downhaul in light air [Re: brucat] #277599
02/15/15 09:09 AM
02/15/15 09:09 AM
Joined: Jun 2001
Posts: 12,310
South Carolina
Jake Offline
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South Carolina
Originally Posted by brucat
Originally Posted by Karl_Brogger
That's my reason for pounding on the downhaul in light air, to keep the leech from hooking and keeping a continual shape. Softer battens would also help, but I'm not a huge fan of dropping a main on the water unless it is going to stay down. Singlehanded its a frickin' pain in the butt to pull it up, and keep the boat more or less in the wind.


Should have stayed with the Hobie 16, and attended more NAs. In RI in 2006, before the first race (in heavy air and huge seas), one of the Mexican teams intentionally capsized the boat, so they could adjust battens.

Can't make that stuff up...

Mike


when spreader rake was all the rage in the a-cats a few years ago, you would see them capsizing the boat all the time to make an adjustment to the spreaders.


Jake Kohl
Re: heavy downhaul in light air [Re: Jake] #277600
02/15/15 09:37 AM
02/15/15 09:37 AM
Joined: Dec 2001
Posts: 5,590
Naples, FL
waterbug_wpb Offline
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why isn't spreader rake "all the rage" now? Did something change with sail/mast design?


Jay

Re: heavy downhaul in light air [Re: ] #277601
02/15/15 10:16 AM
02/15/15 10:16 AM
Joined: Feb 2005
Posts: 4,118
Northfield Mn
Karl_Brogger Offline
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I think they went back to adjusting tension.


I'm boatless.
Re: heavy downhaul in light air [Re: waterbug_wpb] #277603
02/15/15 10:59 AM
02/15/15 10:59 AM
Joined: Jun 2001
Posts: 12,310
South Carolina
Jake Offline
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Jake  Offline
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South Carolina
Originally Posted by waterbug_wpb
why isn't spreader rake "all the rage" now? Did something change with sail/mast design?


I think that whole thing started because Ashby did it once.


Jake Kohl
Re: heavy downhaul in light air [Re: ] #277604
02/15/15 12:50 PM
02/15/15 12:50 PM
Joined: Aug 2007
Posts: 3,969
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brucat Offline
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Originally Posted by Jake
Originally Posted by waterbug_wpb
why isn't spreader rake "all the rage" now? Did something change with sail/mast design?


I think that whole thing started because Ashby did it once.


That's usually all it takes!

Mike

Re: heavy downhaul in light air [Re: ] #277608
02/15/15 06:13 PM
02/15/15 06:13 PM
Joined: Aug 2011
Posts: 774
Greenville SC
bacho Offline
old hand
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Greenville SC
We capsized the F18 to work on the spin halyard between races once, kinda sucked but it beat missing a race to return to the beach.

Re: heavy downhaul in light air [Re: bacho] #277609
02/15/15 09:01 PM
02/15/15 09:01 PM
Joined: Feb 2012
Posts: 54
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dr5e14w Offline
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Changing the spreader rake was easier than trying to adjust indivual wires for port and starboard to get them to balance. I've watched mischa go up his mast between races to move his wires On the f18. There is definitely something to it but it all depends on what you're trying to accomplish.

Re: heavy downhaul in light air [Re: Jake] #277612
02/16/15 09:23 AM
02/16/15 09:23 AM
Joined: Dec 2001
Posts: 5,590
Naples, FL
waterbug_wpb Offline
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Originally Posted by Jake
I think that whole thing started because Ashby did it once.


I'll bet he does stuff like that once in a while just to F with you guys....

"Look, he painted his daggarboards pink. It must be faster" and then there's a run on pink gelcoat the next week...

For someone who can make a 4x8 piece of plywood somehow sail fast, it must be fun to make the occasional poke at us luddites...


Jay

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