Amazing video

mikesyam · 31 October 2013, 08:26

Amazing video, didnt know where else to post it but too good to miss.

Things change quickly during sailing competition. [VIDEO]

biffer · 31 October 2013, 09:10

Who's going to say it. No life jackets

Trimix · 31 October 2013, 09:26

No Kill cord either

(oh, hang on, its a wind powered boat)

paddlers · 31 October 2013, 10:17

Quote:

Originally Posted by Trimix

No Kill cord either

(oh, hang on, its a wind powered boat)

It isn't now !!! Hard to believe how quickly it sank !!!

biffer · 31 October 2013, 10:42

Keel has got to weigh a fair bit

Trimix · 31 October 2013, 10:43

Yeah, thats the bit that I found surprising - went down like a stone !

steco1958 · 31 October 2013, 11:04

Quote:

Originally Posted by Trimix

Yeah, thats the bit that I found surprising - went down like a stone !

Not that surprising really, once the hull ruptured the displacement property is compremised and the boat just becomes a weight ready to sink.

no one every really in danger though, several boats on hand to pull people out of water, rigging always the big issue.

Dhf · 31 October 2013, 12:54

Dumping useless items like that at Sea should be illegal.

indaba1991 · 31 October 2013, 13:36

This was in an Americas Cup Trials in Australia where the local hot boat tipped to win broke in half - it was constructed too light. These IACC yachts are quite different when you compare them to the foiling catamarans of today.

In this boat there were three crew down below decks working the ropes in an area called the sewer. When the boat broke one crew became badly trapped against the bulkhead - his team mates only just got him free in time.

Portholme · 31 October 2013, 13:37

Brace yourself guys but not all race boat sailors wear lifejackets! I use to race 18 foot skiffs and lifejackets were banned on the circuit, because of the serious risk of entrapment. if you get trapped under the boat you have a high chance of drowning if trapped underneath, and you can't dive clear.

Just look up 18 footer capsizes on youtube to see what can (and does/did) go wrong! happy days, we never once thought about the dangers.

On inland events, where the water owners insisted on LJ's we wore them but they were micro life jackets worn as an ornament.

i think I'm right in saying that the keel on those AC boats was about 16 tonnes (from distant memory).

andyxs · 31 October 2013, 14:19

Quote:

Originally Posted by indaba1991

This was in an Americas Cup Trials in Australia where the local hot boat tipped to win broke in half - it was constructed too light. These IACC yachts are quite different when you compare them to the foiling catamarans of today.

In this boat there were three crew down below decks working the ropes in an area called the sewer. When the boat broke one crew became badly trapped against the bulkhead - his team mates only just got him free in time.

Didnt it have something to do with the structural design and taking a runner to the wrong winch (as the right one had spat its cogs) thus loading structure in a manner to which it wasn't designed, runner loads can be huge!

simsy · 31 October 2013, 14:34

' displacement property is compremised ' ----------- I'd say...LOL.

Trailer Guy · 31 October 2013, 14:39

Quote:

Originally Posted by Dragonhawk ficht

Dumping useless items like that at Sea should be illegal.

Australians?

indaba1991 · 31 October 2013, 14:58

Quote:

Originally Posted by andyxs

Didnt it have something to do with the structural design and taking a runner to the wrong winch (as the right one had spat its cogs) thus loading structure in a manner to which it wasn't designed, runner loads can be huge!

Actually not - you are referring to another well known failure (on a NZ boat). Ian Murray the boats designer was on the runners at the time of this failure and he confirmed all positions / loads on the runners were correct. The boats were racing in 20+ knots of breeze in lumpy swell and as they came off a big wave the failure happened (with a big bang.) This incident caused the introduction of wind speed limits - it was recognised that all these boats were designed to very fine limits. (Like in F1 where cars engines have been restricted the AC organisers realised that there had to be wind limits).

The irony is this - the saying goes that in history man learns nothing from history. In the latest Americas Cup one boat failed and a well known GB sailor was trapped and killed. After that lower wind limits were then introduced. Although this is open to criticism no one had foreseen how fast the foiling boats would go. The lower wind limit was intended to try to limit the boast speed below 50kts (where extreme cavitation issues were coming to the fore).