Interesting Sailboats - Page 565 - SailNet Community
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post #5641 of 6763 Old 01-06-2014 Thread Starter
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Yelken Octuri

Do you have ever heard about Yelken Octuri, Yeh, I know he is just a designer and that their designs don't have a technical basis, they did not even make sense... but who cares, we all need to dream and his drawings are beautiful:





Don't miss the drawings that are better than the movies:

Flying yacht - OCTURI - Design & Interior, Fictional aircraft, Light

Sailing aircraft - OCTURI - Design & Interior, Fictional aircraft, Light


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post #5642 of 6763 Old 01-07-2014
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Re: Interesting Sailboats

Quote:
Originally Posted by robelz View Post
... and the center of gravity is further aft to enhance downwind performance.
But that would mean massive changes to the hull...
How can you bring the CG further aft without moving the heaviest parts - keel and mast?
And moving weight around like motor would definitely don't do the trick on an mzig ton boat... Heck - their sail wardrobe is heavier...
I doubt that this has been done... Why invest money in a dead horse?
The VO70s are gone, which is sad and a shame...
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post #5643 of 6763 Old 01-07-2014
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Re: Interesting Sailboats

Quote:
Originally Posted by capt vimes View Post
But that would mean massive changes to the hull...
How can you bring the CG further aft without moving the heaviest parts - keel and mast?
And moving weight around like motor would definitely don't do the trick on an mzig ton boat... Heck - their sail wardrobe is heavier...
I doubt that this has been done... Why invest money in a dead horse?
The VO70s are gone, which is sad and a shame...
Maserati isn't supposed to do the VOR, it is rebuilt as a record chaser... That is why they modified it...
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Re: Interesting Sailboats

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Originally Posted by robelz View Post
Maserati isn't supposed to do the VOR, it is rebuilt as a record chaser... That is why they modified it...
i know - it cannot do the VOR any more... record chasing is good, but it does not answer my questions:
'But that would mean massive changes to the hull...
How can you bring the CG further aft without moving the heaviest parts - keel and mast?'
the keel alone holds around 45% of the weight - you know that moving the fixture of a canting keel means MASSIVE reconstruction of the support structure?
why in the world should anybody do that?
it is probably cheaper - and safer in terms of structural integrity - to build a new hull from scratch...
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Re: Interesting Sailboats

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Originally Posted by capt vimes View Post
i know - it cannot do the VOR any more... record chasing is good, but it does not answer my questions:
'But that would mean massive changes to the hull...
How can you bring the CG further aft without moving the heaviest parts - keel and mast?'
the keel alone holds around 45% of the weight - you know that moving the fixture of a canting keel means MASSIVE reconstruction of the support structure?
why in the world should anybody do that?
it is probably cheaper - and safer in terms of structural integrity - to build a new hull from scratch...
Wouldn't it be possible just to fix the bulb further aft? Making an L out of a T?
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post #5646 of 6763 Old 01-07-2014
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Re: Interesting Sailboats

It has already been on a weight reduction program, resulting in a 10% drop in weight. Just as with roadgoing Maseratis the weight distribution has been optimized rearwards, to make it particularly well-suited to high-speed sailing.

From the Maserati page...
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post #5647 of 6763 Old 01-07-2014 Thread Starter
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Re: Interesting Sailboats

Quote:
Originally Posted by capt vimes View Post
i know - it cannot do the VOR any more... record chasing is good, but it does not answer my questions:
'But that would mean massive changes to the hull...
How can you bring the CG further aft without moving the heaviest parts - keel and mast?'
the keel alone holds around 45% of the weight - you know that moving the fixture of a canting keel means MASSIVE reconstruction of the support structure?
why in the world should anybody do that?
it is probably cheaper - and safer in terms of structural integrity - to build a new hull from scratch...
There is the idea that Carbon boats are not easily repaired or modified and that is partially true on the sense that needs more equipment, the same it was used to do the boat in first place but given that pretty much is possible. There are racing boats that have been considerably lengthened, some Australian big ones and the the same with some ORMA boats (trimarans) that were transformed in new bigger trimarans cannibalizing the smaller boats.

It can be made but it is hugely expensive so in the end probably you are right and they did not modify substantially the keel placement and as Robelz suggest probably they just brought the bulb aft and only that will make some difference. We are talking here about small differences. I don't believe that the boat was wrongly designed. In its time it w a winner and the boat had beaten then the monohul 24 hours record. We are talking about very small modifications to better the boat, not big changes.





Yes, the boat cannot race the VOR anymore, since it is a mono class now but could have raced the last edition. It didn't race it because it was not competitive anymore regarding the new VOR generation. Nobody would be wasting a fortune on a new boat if an old one with some modifications could win the race.

Robelz, what makes a boat good for chasing records, I mean long distance ocean records, is not different than what makes him good for racing the VOR. The difference is that while beating records the crew is choosing the weather for a perfect run and the boat does it alone, on the VOR they don't chose the weather and are on direct competition with other boats.

Regards

Paulo


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Re: Interesting Sailboats

Quote:
Originally Posted by robelz View Post
It has already been on a weight reduction program, resulting in a 10% drop in weight. Just as with roadgoing Maseratis the weight distribution has been optimized rearwards, to make it particularly well-suited to high-speed sailing.

From the Maserati page...
i believe you.
but to me it seems that reducing the weight of an VOR 70 is like sending a really skinny model to hospital for a liposuction...
i mean - 10% of a rated displacement of 14 t is still 1,4 t... i have no idea where they should have scraped that off since a raceboat is nothing but structure and mechanics (sails, rig, deck hardware, appendages...)
Groupama 4

Quote:
Wouldn't it be possible just to fix the bulb further aft? Making an L out of a T?
i guess - but i wager not without reinforcing or redesigning the keel blade as well...
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WOW!! boat: TT700

Lots of WOW boats but few that we can buy and this is one of them, an incredible boat. I had some difficulty in believing my eyes This is a boat designed on a mini racer type of hull, a big bigger, but with an unbelievable interior and a classy outside look. Designed by Zerbinati it was home built by a naval engineer that obviously new what he was doing. Now the boat is built on a small production scale.

On the movie skip the talk and have a good look at the interior...amazing!!!












SAM Yacht


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Re: Interesting Sailboats

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Originally Posted by capt vimes View Post
i guess - but i wager not without reinforcing or redesigning the keel blade as well...
As I wrote they gave it a longer keel (with a lighter bulb) so a) a part of the weight reduction comes from the keel and b) they obviously redesigned the keel...
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