Inter_Michael,

How did you run the line? It doesn't get in the way of snuffing? Diagram?

Jake,

Did you run a doubler on the spin sheet to ease the loads. We've found this really helps on crew fatigue when carrying the kite high on distance races. We tied a pigtail to the clew of the kite with a carbo block on it and tied a stopper knot in the end of the spin sheet. When you want to deploy the doubler you draw the stopper knot back from the pulley to a hook attached to the shroud adjuster (or on top of your spinnaker turning block on the hull).

Chris.

no doubler

the doubler is to slow when playing the curl of the luff.

nah...I don't think Carl would have had enough patience for me to go to the low side to cleat it...he and I share similar focus levels. Running so high, I wonder if with 2:1 if I could react fast enough to a collapsing kite.

no doubler needed, just use your legs to pull the line. Wrap it around your arm a couple times so you can grip it.

Or use jake's gauntlet.

Yes, the 2:1 works great. I wouldn't do a long distance event without it..

Yeah, I kept waiting for the line "She's so fine, there's no telling where the money went".

Regards,
Eric

If you take a look at the beautiful job that Performance Catamarans of Santa Ana, California did on the new Nacra 580, you'll find that a kick up centerboard, that has a proper foil shape, can indeed be self sealing with no added gaskets.
Pictures of the Nacra 580 with kick up centerboards

This centerboard seals the trunk when it is fully retracted and it also seals the trunk when it is fully extended.

Flashback in time: Check out my April Fools Post from 2003:




GARY

That daggerboard is a bit to short with too long a chord for my taste. The sealing part of it could use some adjustment to fit the hulls properly
But kickup daggers would be great on a distance racer, no reason to worry too much about what you can hit with them. The extra weight added to the kickup mechanism can probably be re-gained as you dont have to reinforce the daggerboard well and bulkheads around it as heavily. I like it a lot! Just need a working and robust mechanism.
Have you tought about starting a fortune-telling business Gary? Seems like you are plenty succesful at it, or is your talent limited to beachcats?

Pardon my french here but what a non-informative post that turned out to be. Look at it was stated :




Both info elements in this sentence are just plain non-sense. It was actually just a centreboard version on the Nacra 5.8; that is even reflected in its name. It DOES NOT comply with F20 rules; it is not heavy enough. So that info element was non-sense as well.





Not really, the hullshapes are more like the old nacra's; the N5.2's, N5.5's, N5.8's and even N5.7's, then the nacra F18.





What is narrow on a catamaran. I think the hulls to be rather medium in the way of narrowness. And it doesn't have a plumb bow like the Inters. Tall ? Well the Nacra F18 has tall bows the nacra 580 doesn't. At least not more then its predessor 5.8 and other nacra boats of that time frame.





Right ! All other designers are still using wooden masts on their boats right ? And clearly carbon wing masts are inferiour to this pretty standard tear drop shaped mast. Talking up your product is one thing but still is more then a little over the top is it not ?




The N580 centreboards have an aspect ratio of 2 (the width fits 2 times in the wetted length); see provide pics.

As comparison :

F18's daggers aspect ratio are between 3 and 4. Nearly double that of the N580.
A-cats daggers are close to ratio of 4.
Even the old Nacra 5.8 (predessor) had a daggerboard aspect ratio of 2.4 = 20 % more then the new one.

But we call these new dagger "high aspect ratio" !





Please all catamaran sailors that suffer broaching on their boat raise their hands.

No-one ?

Ofcourse broaching is a monohull problem. It is linked to the heeling of the boat and the weatherhelm that is caused by the centre of effort being suddenly moved far out of line to the single daggerboard as a result.

I rest my case now.

Wouter

Wouter, I think the key here is "Check out my April Fools Post from 2003:".

Nice one Wout. Way to see the forest for the trees.

Do they have April Fool's Day over yonder? (April 1st - a day for jokes and hijinx)

haha, good one, Jake...

agree with that

Lighten up, Francis.

I just blew milkshake out my nose when I read that.

Jake owes me a new laptop keyboard now :P

oh boy I`ve missed the forum for a while, but this one is much too good to miss.
Maugan, gotta meet you some day. Wouter too.
if laughter is food for the soul, my soul just gained a few pounds.

April Fools Post from 2003 ?!

Ahh darn !

I'm know to put my foot in my mouth from time to time, but this one beats all the rest I'm sure.


Hook, line and sinker guys, no doubt.

Yep we have april fools joke overhere as well so I should have know better.

Good one

Wouter