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  #1  
Old 01-23-2014
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Australia One's sinking "What happened here"?

This is the first time I have saw this video
Wow!! what happens here?


Things change quickly during sailing competition. [VIDEO]
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Old 01-23-2014
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Re: Australia One's sinking "What happened here"?

I think that the NA put in the construction plan "fold on dotted line'
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Old 01-23-2014
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Re: Australia One's sinking "What happened here"?

too much backstay pressure drove mast through boat cool eh
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Old 01-24-2014
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Re: Australia One's sinking "What happened here"?

australia one had to my knowledge and memory an very unusual design...
she had 2 keels - one forward and one aft which were also working as rudders...
in principal a good idea but the construction just could not stand the loads from the rig which in conventional designs stands on the keelson and a very much reinforced area - more or less...
on this boat, reinforcements at the mast step were not so much there, obviously...

i could be wrong about it being australia one, but there was a racing mono with that configuration which broke in half...
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Old 01-24-2014
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Re: Australia One's sinking "What happened here"?

....and it was this event that resulted in the New Zealand beer commercial, "So smooth that it goes down like Australia one!"
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Old 01-24-2014
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Re: Australia One's sinking "What happened here"?

Wow, that was incredible. It is a good thing the crew at the bow jumped off when they did. Another couple seconds and they easily could have gotten tangled up in a sheet and pulled to the bottom. It is pretty amazing the boat went down so perfectly plumb, instead of rolling to one side or tipping aft. You would think the bow would have kept a sizable air pocket and the stern would allow the air to escape and sink faster.
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Old 01-24-2014
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Re: Australia One's sinking "What happened here"?

i do not think that these boats had watertight compartments anywhere...
crack it in the middle like a blown out egg and it flushes all of the boat in no time...
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Old 01-24-2014
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Re: Australia One's sinking "What happened here"?

This is from memory, but my recollection is that there was an investigation into what caused the failure. My recollection was that this boat had previously been damaged and repaired near this area. Also major hardware had been relocated in way that increased the loads near the repairs. The repairs and hardware relocations had not been discussed with the design team who were not expecting that much load in this area. With the compromised strength from the repair in this area and the higher loads from the relocated hardware, the hull failed at the edge of the repair. Adding to this, Aus 31 was optimized for the comparatively light to moderate wind and long swell conditions that are typical of San Diego. My recollection was that it had been the conditions were pretty high winds, and a choppy day which only added to the problem.
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Old 01-24-2014
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Re: Australia One's sinking "What happened here"?

Too much Fosters and Velveeta for the crew. Should have stuck with Vegemite.
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Old 01-24-2014
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Re: Australia One's sinking "What happened here"?

It's ironic that there was a lot of criticism during the last Americas Cup about the unseaworthiness of the catamarans, often from people who were diehard fans of monohull Americas Cup racing.
Guess they forgot about this lol.
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