No Heeling Please - Page 3 - SailNet Community
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post #21 of 34 Old 02-28-2007
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Quote:
Originally Posted by Sailormon6
It's a little hard to imagine what a gybe would be like in a 20 kt wind.
That's in France...they "chicken" out at 15kts....and stay home
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post #22 of 34 Old 02-28-2007
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What's the next thing they will invent in France???? a man that behaves like one?????

I know...rubber coated riffles...so they don't scratch....
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post #23 of 34 Old 02-28-2007
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Umm... they've already had sailboats that do that for a long, long time now... they're called multihulls... and they don't need no really extra complicated rig...which must suck maintenance wise...

I'm just wondering what happens when you tack/gybe that beast, and the whole mast has to go from one side to the other...if you thought a boom in an accidental gybe was dangerous, this probably puts that to shame.

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post #24 of 34 Old 02-28-2007
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Flying a spinnaker must be fun too.
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post #25 of 34 Old 02-28-2007
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Quote:
Originally Posted by Idiens
Flying a spinnaker must be fun too.
I don't think it would fly...per se....call it more like a spinnaker "dragging" a boat.....

Hey...we should revive the rich in knowledge deck/stepped mast thread with this....I'm sure we'd be bombarded with wise opinions.....
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post #26 of 34 Old 02-28-2007
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Look on the bright side, there shouldn't be any accidental jibe with that rig. Gravity should keep the boom from coming accross.

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post #27 of 34 Old 02-28-2007
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It’s a Power boat in disguise. Can’t believe those stink potters masquerading as a sail boat.What will be next?
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post #28 of 34 Old 02-28-2007
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That's just wrong...
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post #29 of 34 Old 03-01-2007
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Well I have to give him a nod for trying, from a design stand point I'm surprised it actually worked. The amound of stress put on that "ring" is HUGE. Not only does it have to deal with compression forces from the mast, but now it needs to deal with torsional loads from both the keel and the mast! I can only sit here thinking of the bearing set up and scratching my head. The other thing thing I wondered about was groundings. With this design the entire keel is held into place by a singe ring of steel which is attached to the boat by bearings and some sort of race/gland. this makes for a very small attachment point not to mention that there is NO keel stub. With centerboards there is at least the reinforced trunk.

One last thing, while this might be a pretty half baked idea for a mast/keel combo, it makes an interesting idea of a less stress inducing canting keel. I really don't know too much about it, but it seems that the main weakness of the cantings are their central pivots with hydrolic rams. With an external ring the entire boat would be a bearing. there is still the issue of the force required to move the thing, so maybe it wasn't a good idea afterall...

And what's with all the French bashing, they make some damn fine tris! Go on youtube and look for videos of those 60ft maxis charging though the waves at 40kts. Makes me drool a bit.
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post #30 of 34 Old 03-01-2007
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2 cents worth if that:

Last I read, no one understood the cavitation related strains on carbon canters.

It was suspected that these forces not only cause the dagger-like keels to snap, but they may stress the pivots and rams,
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