Date: 26/09/2013 08:41:14
From: Ian
ID: 401996
Subject: Oracle Team Australia with US support wins America's Cup

AFTER the longest and fastest regatta in history Australian James Spithill and his team on have won the Americas Cup after a miraculous comeback which has rewritten history.

The famous sailing regatta was won by the Larry Ellison backed Oracle, the Americas Cup defenders, this morning when they beat Emirates Team New Zealand by 44 seconds on the waters of San Francisco Bay.

It signaled the end of almost three weeks of thrilling racing in the high-speed AC72 chosen as the weapon of choice in the battle for the 34th Americas Cup.

The teams went into this morning deadlocked after James Spithill and his team staged a stunning comeback to move from 8-1 down to level the series.

“Good one guys,’’ Spithill said to his crew as he steered across the finish. “It is really about the team. On your own you are nothing.’’..

It was also the eighth straight win by Spithill and his team which includes Australians Tom Slingsby, Joey Newton and Kyle Langford and a couple of yanks.
“Oh man, what a race. It had everything. It was a fantastic race . We wouldn’t have had it any other way than to come from behind.

“These guys showed so much heart.’’…

http://www.dailytelegraph.com.au/sport/more-sports/oracle-team-usa-wins-americas-cup-defeating-team-new-zealand/story-fni2frsp-1226727267584

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Date: 26/09/2013 09:19:26
From: Ian
ID: 402012
Subject: re: Oracle Team Australia with US support wins America's Cup

Where is Americas cup “yacht” evolution going next?

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Date: 26/09/2013 10:34:00
From: mollwollfumble
ID: 402067
Subject: re: Oracle Team Australia with US support wins America's Cup

Ian said:


Where is Americas cup “yacht” evolution going next?

Where is “America’s” cup yacht evolution going next? I thought this was supposed to be a battle between nations, but the US yacht was designed using NZ software and crewed by Australians and other foreigners.

I really like the idea of using catamaran plus hydrofoil for fast yachts. Am assuming it’s predominantly made from carbon fibre, which has high strength and stiffness combined with light weight. I can’t see any obvious way to improve the design, other than perhaps speed up crew and/or ballast movement with a fast winch system. The under-water hydrofoil development is largely hampered by the race rules. Perhaps the sail shape can be improved a bit, but I suspect not by much unless the sail area is increased. Yes, I think I’d start the improvement using a hand-operated stored-energy (eg. bungee cord) winch system for rapidly moving ballast. Then follow that up with a larger sail area made possible by the increased lateral stability.

Assuming that that is legal. I note a ballast-adding scandal where “Team Oracle USA penalised as cheating scandal rocks America’s Cup … The jury said the modifications included adding ballast, using 80mm – instead of the manufacturer’s 15mm spigots – on the main king posts and extending the length of the king posts”.

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Date: 26/09/2013 11:03:35
From: party_pants
ID: 402077
Subject: re: Oracle Team Australia with US support wins America's Cup

Got to be one of the great comebacks in sporting history. I also feel happy for the USA team.

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Date: 26/09/2013 12:57:43
From: Dropbear
ID: 402121
Subject: re: Oracle Team Australia with US support wins America's Cup

Im still trying to work out how the boat manages to go twice the prevailing wind speed…

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Date: 26/09/2013 12:59:15
From: OCDC
ID: 402122
Subject: re: Oracle Team Australia with US support wins America's Cup

Dropbear said:


Im still trying to work out how the boat manages to go twice the prevailing wind speed…

Lactose-intolerant crew member.

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Date: 26/09/2013 13:00:29
From: buffy
ID: 402123
Subject: re: Oracle Team Australia with US support wins America's Cup

Red Symons has been having trouble with that too. He thinks it might break some fundamental law of physics. But what would a mathematician know about that anyway?

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Date: 26/09/2013 13:01:18
From: Dropbear
ID: 402124
Subject: re: Oracle Team Australia with US support wins America's Cup

buffy said:

Red Symons has been having trouble with that too. He thinks it might break some fundamental law of physics. But what would a mathematician know about that anyway?

If anyone would break physics it would be Larry Ellison.. (I used to work for him)

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Date: 26/09/2013 13:03:25
From: Peak Warming Man
ID: 402125
Subject: re: Oracle Team Australia with US support wins America's Cup

Dropbear said:


buffy said:

Red Symons has been having trouble with that too. He thinks it might break some fundamental law of physics. But what would a mathematician know about that anyway?

If anyone would break physics it would be Larry Ellison.. (I used to work for him)

That’s what Oracles are for.

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Date: 26/09/2013 13:04:49
From: Dropbear
ID: 402126
Subject: re: Oracle Team Australia with US support wins America's Cup

http://www.sciencedaily.com/videos/2007/1208-physics_of_sailing.htm

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Date: 26/09/2013 13:06:00
From: diddly-squat
ID: 402127
Subject: re: Oracle Team Australia with US support wins America's Cup

Dropbear said:


Im still trying to work out how the boat manages to go twice the prevailing wind speed…

sailing faster than the wind isn’t anything particularly new or fancy – it’s actually very similar to relativistic effects. The apparent wind (as opposed to the true wind) is the wind the boat experiences as it accelerates. It’s the apparent wind effect that allows the boat to travel faster than the true wind.

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Date: 26/09/2013 13:07:36
From: diddly-squat
ID: 402128
Subject: re: Oracle Team Australia with US support wins America's Cup

Dropbear said:


buffy said:

Red Symons has been having trouble with that too. He thinks it might break some fundamental law of physics. But what would a mathematician know about that anyway?

If anyone would break physics it would be Larry Ellison.. (I used to work for him)

that’s the guys married to Brit, yeah…

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Date: 26/09/2013 13:07:57
From: OCDC
ID: 402129
Subject: re: Oracle Team Australia with US support wins America's Cup

Dropbear said:


http://www.sciencedaily.com/videos/2007/1208-physics_of_sailing.htm

Who needs a sailing avatar when we have Our Bear?

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Date: 26/09/2013 13:10:15
From: Dropbear
ID: 402130
Subject: re: Oracle Team Australia with US support wins America's Cup

OCDC said:


Dropbear said:

http://www.sciencedaily.com/videos/2007/1208-physics_of_sailing.htm

Who needs a sailing avatar when we have Our Bear?

I’m the bear for all people … it’s true

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Date: 26/09/2013 13:11:51
From: Dropbear
ID: 402131
Subject: re: Oracle Team Australia with US support wins America's Cup

diddly-squat said:


Dropbear said:

buffy said:

Red Symons has been having trouble with that too. He thinks it might break some fundamental law of physics. But what would a mathematician know about that anyway?

If anyone would break physics it would be Larry Ellison.. (I used to work for him)

that’s the guys married to Brit, yeah…

no..

Larry is madly in love with himself, mostly..

(he’s been married and divorced four times).

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Date: 26/09/2013 13:39:58
From: Stealth
ID: 402133
Subject: re: Oracle Team Australia with US support wins America's Cup

diddly-squat said:


Dropbear said:

Im still trying to work out how the boat manages to go twice the prevailing wind speed…

sailing faster than the wind isn’t anything particularly new or fancy – it’s actually very similar to relativistic effects. The apparent wind (as opposed to the true wind) is the wind the boat experiences as it accelerates. It’s the apparent wind effect that allows the boat to travel faster than the true wind.


Not really. It is more a leverage type thing. The wind is trying to push the boat in the direction of the wind, the keel/centreboard resists that movement when the boat is not traving directly downwind. Because it is very hard to push a keel sideways through the water it ‘slips’ sideways to that force (sideways of sideway is forward). The slowest speed is when the wind and keel are aligned at 0 or 180 degrees, and then you are limited to wind speed less frictional losses. The fastest speed can be acheived by the wind and the keel being at 90 degrees to each other, whcih is called Reaching in sailing terms.

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Date: 26/09/2013 14:44:02
From: Ian
ID: 402152
Subject: re: Oracle Team Australia with US support wins America's Cup

Stealth said:


diddly-squat said:

Dropbear said:

Im still trying to work out how the boat manages to go twice the prevailing wind speed…

sailing faster than the wind isn’t anything particularly new or fancy – it’s actually very similar to relativistic effects. The apparent wind (as opposed to the true wind) is the wind the boat experiences as it accelerates. It’s the apparent wind effect that allows the boat to travel faster than the true wind.

Not really. It is more a leverage type thing. The wind is trying to push the boat in the direction of the wind, the keel/centreboard resists that movement when the boat is not traving directly downwind. Because it is very hard to push a keel sideways through the water it ‘slips’ sideways to that force (sideways of sideway is forward). The slowest speed is when the wind and keel are aligned at 0 or 180 degrees, and then you are limited to wind speed less frictional losses. The fastest speed can be acheived by the wind and the keel being at 90 degrees to each other, whcih is called Reaching in sailing terms.

Don’t mention “reaching” if dv is about!

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Date: 27/09/2013 23:56:55
From: Ian
ID: 403352
Subject: re: Oracle Team Australia with US support wins America's Cup

It’s fascinating that some sports commentators are describing yesterday’s race as the best live sports event ever.

———————————

America’s Cup racing “resembles flying rather than sailing”

<BR>

(This is the thing that struck me.. it is really on the edge. Do they have control surfaces similar to planes the keep their “flight” straight and level?)

<BR>

The America’s Cup is the oldest and most prestigious sailing event in the world. But this year the race has polarized fans like never before.

The billionaire Larry Ellison invested big money in the Oracle USA Team; it developed new twin-hulled catamarans, which are much faster than previous racing vessels, and made racing more dangerous.

The has generated exciting television footage and in recent weeks drawn unprecedented crowds to the bay of San Francisco to watch the drama unfold.

Three-time Olympic sailing gold medalist Jochen Schümann is the only German national to have been in an America’s Cup winning team, twice – as part of the Swiss team Alinghi in 2003 and 2007.

Deutsche Welle: Were you surprised by New Zealanders’ strong showing?

Jochen Schümann: Yes, definitely. I was really surprised that their development concept enable them to be out there so early and with only one boat. They were obviously so good that they were able to match defending Oracle Team USA. Even more than that.

It appeared that the defending team of the software tycoon Larry Ellison of Oracle Corp. was far better placed; hardly any other team could keep pace with the development . That proved to be not the case.

Obviously the Team New Zealand technicians and yachtsmen are very clever and had just the right concept from day one. Otherwise, they would not have been able to prepare themselves on time and within their budget. It seems the races are getting closer and closer.

“More like an aero plane”

We saw how spectacular the races are these days. The boats really seem to fly over the water, how does that work?

Well, first of all the catamarans have two hulls, that makes them more stable; it’s as though they are standing on two strong feet and that enables them to carry a greater sail area.

We can’t really call them sails anymore; they are more like the stiff wings of an airplane. It is similar with the dagger boards that work in the water like additional wings. They ensure that the wind is transmitted into extreme thrust and energy; when the boat travels fast. It lifts up out the water; only the wings remain in the water. The rest of the boat flies. I think we are closer to flying than sailing.

The boats have broken all speed records at the America’s Cup and the Oracle Team’s skipper has admitted that if feels a bit like Formula One racing. That kind of a comparison begs the question of how dangerous a small error can be and whether such boats are at all manageable. In the eighth race the New Zealand Catamaran nearly capsized – can you explain what happened there?

Basically, the Kiwis handled that really well. They managed at the very last second to prevent the boat from capsizing and being damaged. Aside from the two yachtsmen on the windward rump who found themselves more than ten meters above the water, the other crewmembers didn’t blink in astonishment; they just continued grinding really hard and ensured that the catamaran was tipped back into its normal configuration. It cost them a penalty, but they saved their boat.

The crews are well-prepared for all eventualities; they have life vests, as well as knives and other equipment to help them escape should the catamaran capsize and should they be trapped underwater, under the netting. And there are boats that follow both catamarans as they race. Organizers strive for the best-possible safety precautions..

We saw how dangerous it can be back in May when British double Olympic medalist Andrew “Bart” Simpson (Team Artemis) died. This capsize accident was a tragic lesson and organizers cancelled races in strong winds . Sailing fans then criticized that step, saying perfect sailing weather had been sacrificed and asked if that had anything to do with sailing?

It’s naturally a pity that the wind strength rules are so tight. Originally, we were all prepared to build boats that would sail somewhere between 3 and 30 knots Now, it’s been reduced by about a third to just over 20 knots. For us spectators it would be more exciting if both teams could sail at higher wind speeds.

What kind of a future do you foresee for the America’s Cup? How will the competition develop?

That’s one of the crazy things about the America’s Cup: It is unpredictable. It is different from other sports competitions that take place according to the same rules and regulations each time. Instead, the country that wins the Cup gets all the rights to decide on the organization, the location, and the class of boat. In principle, all the rules are newly written by the winner.

http://www.dw.de/americas-cup-racing-resembles-flying-rather-than-sailing/a-17114384

—————-

America’s Cup: How far should technology go?

<BR>

Stalwarts of the America’s Cup are raising questions over how far technology in the event should go.

Oracle made large foil adjustments during the regatta, significantly boosting its speed using an automated system.

Alan Sefton was a key member of Team New Zealand from the ’80s up until 2000, and says some of the US syndicate’s technology was practically what jet planes use to fly.

“That’s unbelievable technology that probably only Larry Ellison could afford to put on a yacht. But I have to question very seriously whether it should have been on that boat at all.

“It’s not sort of hands-on sailing that the America’s Cup is supposed to be.”

There’s also been a call for the America’s Cup to move away from the spectacular AC 72’s.

The wing-sail catamarans were used in the event for the first time in 2013, but came under criticism due to the high costs involved and safety concerns.

Former Team New Zealand director Sefton says the costs are simply too extreme.

“That’s the end of these things. Let’s get them out of the way and let’s get the America’s Cup back to what it should be, to what people can afford to race in.”

Sefton says with indications Grant Dalton will step down from the Kiwi syndicate, it’s hard to see a certain future for Team New Zealand going forward.

http://www.radiosport.co.nz/news/spyac/1082111533-america-s-cup—how-far-should-technology-go-

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