Catamaran flipped two die - SailNet Community
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post #1 of 35 Old 07-11-2019 Thread Starter
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Catamaran flipped two die

https://www.9news.com.au/national/ne...a-54ad9c07c49c


They said the wind was 30knots.

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post #2 of 35 Old 07-11-2019
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Re: Catamaran flipped two die

That's awful.

I wonder what the make of the boat is. It says 11.7 meters, so about 38 feet for us Americans.

Catamarans shouldn't just flip like that...

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post #3 of 35 Old 07-11-2019
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Re: Catamaran flipped two die

Without a keel they don't have much righting moment...

pay attention... someone's life depends on it
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post #4 of 35 Old 07-11-2019
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Re: Catamaran flipped two die

The boat was heading south.

Quote:
The conditions were difficult. We had 25 to 30-knot westerly winds with a sea of 1 to 2 metres [easterly swell] coming the other way, so it was fairly messy out there," he said.

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post #5 of 35 Old 07-11-2019
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Re: Catamaran flipped two die

It is a Spirited 380 and not the first one to flip over. big winds and waves and any cat can flip with almost no way to recover. it is winter down there.

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post #6 of 35 Old 07-11-2019
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Re: Catamaran flipped two die

A home made kit boat


https://www.spiriteddesigns.com.au/spirited_380


Quote:

Sailing caracteristics:
This is a nice and fast sailing machine. She goes well to about 40 degrees apparent wind angle, does not like the mainsail to be sheeted in too close though. Like many cats she kicks up her skirts when the wind gets to approx. 10 - 12 kts and accelerates quickly. Running due downwind with only the jib in an E force 6 - 7 off Tarifa we were happilly running at 12 - 14 kts, topping 18 kts surfing down the waves with full boat control. Seeing double digit sailing figures becomes quite normal. She tackes happily and easily in smooth waters, in waves this was only achieved with backing the jib with the mainsail being uncleated.

Critisism:
1) The most important one has to do with the placement of the engines right at the aft end of the hulls under the steps, with engine access only from the outside via forward hinged hatches incorporating one of the steps (see one of the pictures below). Though this arrangement allows one to stand on the lowest step and easily work on the engine, it only gives about 30 cm of wave clearance - this is not enough wave clearance in a seaway to open the hatch at sea if access is needed! One would also be fully exposed to the elements and the risk of falling overboard is also not to be overlooked. This in my eyes is a very bad design issue!
2) For a modern cat I would have expected it to have more bridgedeck clearance - at the aft end of the bridgedeck I measured 505mm / 560mm with / without bridgedeck stringers -, in the right wave conditions there is quite a lot of wave slamming - but this increase in bridgedeck clearance would reduce the headroom in the main cabin.
3) I feel she would also benefit from larger rudders to make her more responsive to rudder movement.
Review at http://www.multihulls4us.com/forums/...-380-catamaran


Scary thought:
18 knots downhill and hit a wave from the other direction, nit enough rudder to stop a flip.

Yikes

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Last edited by MarkofSeaLife; 07-11-2019 at 02:35 PM.
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post #7 of 35 Old 07-11-2019
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Re: Catamaran flipped two die

also noted that all five were wearing life jackets
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post #8 of 35 Old 07-11-2019
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Re: Catamaran flipped two die

That is really awful... :/
But these are not really that uncommon conditions: 30 knots of wind and 6 foot seas. I wonder if they had too much sail for the conditions. I sailed smaller cats (beach cats) and when over canvassed they were quite unstable.

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post #9 of 35 Old 07-11-2019
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Re: Catamaran flipped two die

Typically, we mono hull drivers use news like this to poke our multi hull siblings a bit, but not the right time, given the fatality.

Instead, Ill point out that I was up close with the one and only brand new Gunboat 68 last week. No 30 knot wind is going to flip that thing over. It was a beast. A serious floating mansion, not condo. If I ever go multi, thats my first pick. 🙂


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post #10 of 35 Old 07-11-2019
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Re: Catamaran flipped two die

I calculate a SA/D of 32.5

I don't know catamarans, but that seems like a lot of sail.

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