America's Cup 2017 @Bermuda / Louis Vuitton Finals info here - Mike Drummond's Live Tracking App here

Jun 24, 2017

America´s Cup 21017 @Bermuda, Finals Day 3: New Zealand 4 vs Oracle 1

Photos / Video: ACEA / Sander van der Borch / Gilles Martin-Raget -  More shots  & videos later. Update: Day 3 Vid Review sent by TNZ .
Report by Oracle Team USA  here.

Our view: Third day of racing for the 2017 America's Cup Finals @Bermuda:
It was 1 - 1  today but is fair to say on performance boat to boat , TNZ continues to be superior. Specially in each single tack / gybe.  With a bit more wind that the previous two days (11kntos)  Oracle had good straight line speed, but there ended their good news.

Two penalties in thee first race, one for being early  on the start line and another on a dubious cross with rights for TNZ where they lost any chance to recover.

But it was hard to watch how Oracle struggled when wind dropped a bit or in their floating gybes, while New Zealand continued their flying carpet ride.

R2 - In the second race, again good pressure on the start allowed Spithill  being first to the reaching Mark. But later  another failed gybe to lose lead,  somehow they managed to recover towards first gate.

A good upwind leg followed for Oracle maintaining lead, but the second downwind was too much to bare. While Oracle was footing to get pressure and losing vmg badly, Burling & Ashby just headed straight line to the gate, it was too much difference in performance downwind, another game altogether, added to the Kiwis perfect gybes.

TNZ got the lead for last upwind but Burling decided once more to do a loose coverage, letting Slingby to dictate the favoured side of the course and putting Spithill where the pressure was , as TNZ left them alone,   Oracle managed to recover the lead on a tight cross near the last upwind mark and this time the gap was enough for Oracle to sustain the short downwind to the final gate and last reaching mark towards the finish line to score their first point.

It was a win for Oracle , with a great performance on their possibilities, but it was clear a race given away by New Zealand.

Performance R&D
I've been reading much titles on "secret", "we have the details on the advantage no one has".... and so on and on.
Today systems played a role and Ashby / Burling are putting their talent a step above thanks to the tech involved at hand,

But the major incidence factor on deciding this Cup performance is wide visible to all at any give time:

- Foil Design & foil selection - Do not look any further.
Later I will upload Oracle foils from today already posted in last weeks cads previews.
Oracle seemed to be using their all purpose longboards.

Jun 22, 2017

Jun 20, 2017

F18 @Kiel Week 2017: Paschalidis & Trigonis 1st

Red Bull Youth America's Cup 2017 @Bermuda: Finals Day 1 Results

Red Bull Youth America's Cup Live link

Photo: Xaume Olleros for Red Bull Content Pool -  The Live Stream will be seen only at  at 14:00hs Bermuda.
Supported devices at

Teams in the Finals:

Jun 18, 2017

America's Cup Final 2017 @Bermuda: Day 2, New Zealand 3 vs Oracle 0

All images ACEA /  Sander van der Borch & Ricardo Pinto - Video sent by Emirates Team New Zealand. -

America's Cup Final 2017 , Day 2:
R1 - Spithill trying to get Burling at the start but the young kiwi is playing his own game defending his position, both teams wth clear and even start.  Oracle to windward trying to roll over TNZ, side to side towards reaching Mark and through the boundary. A better gybe by TNZ puts them ahead, and that's it. They were gone.

R2 - Another start in parallel, this time TNZ from above and n better speed  they simply could complete the roll over Spithill tried in race 3. From then on, New Zealand was gone once more.

On doubt were the starts by Burling: On the 4 races till now Spithill could not now a single one or push Burling around,  Peter demonstrated he can adapt in no time and he is up to any challenge.

End of the racing report....

It was "Boring" only thanks to Emirates Team New Zealand being faster, added to their smoother handling , plus excellent sailing today by Burling & Ashby. Not an error and flawless course racing.

In more breeze Oracle might win some races and even the Cup, but performance wise, in 8 to 12 knots "midrange" where the design difference is really made  they are far behind NZ. In 5 knots or 20knots, things get more even.

On the Design & Implementation Game, TNZ has won by miles already.

I really thought Oracle unlimited resources and full collaboration with JPN, drive from last Cup, plus all the sailing done in Bermuda was going to play a role for them to do better.

They might end winning this Final but once more the Kiwis confirm they are Nr 1  innovators , builders & designers.  At the end of this Cup they might confirm again they are top AC sailors.

AC Final 2017:
Emirates Team New Zealand 3 (4) vs Oracle Team USA 0

Racing resumes next weekend.

Day 2 Press Conf

Jun 15, 2017

America's Cup 2017 @Bermuda: Super Yacht Regatta Portfolio

Red Bull Youth America's Cup 2017 @Bermuda: Pool A Qualifiers D1

R2AK Race to Alaska 2017: Day 4

Top US F18 sailor Tripp Burd along his borthers are leading the 2017 Race to Alaska on a Morrelli & Melvin custom trimaran.

Tripp's report from yesterday: "..We are through Bella Bella and are thankfully getting back out in the channel and the building breeze. We have had to do some more pedaling to keep moving while the boats behind keep bringing the breeze up from behind. We are working hard to stay ahead. We have not yet gotten a visual on BRODERNA but we know they are there. (We hope you do not see them before Ketchikan)! Not sure what we can do but we think once we are in steady breeze our speed is good.

We believe the peak of the winds have come and gone already. Outside we are expecting to see 29-35 knots as we reach over the top of the next island. We are planning a safe route thereafter according to the conditions. Our boat is in good condition with no damage and we are ready for what comes.
Gotta Go. All is good, no worries."   Follow Team Pure & Wild Fb here

R2AK  pics & video at
Official web

America's Cup 2017 @Bermuda: Drafting AC50 Foils

Update: Feedback from a reader says mainfoil horizontal should point downwards, well that depends on the tilt given and the outer vertical curve commented I need to refine, but  additional render with more tilt shows that (check daggerboard at deck exit to compare tilt).
Some readers were asking for foils details, working on it thus not much updates latest hours. I'm trying to draw & catalog AC50 foils. Good shots are available only now as the teams have no option to photoshop or hide them once racing, no use to neither at this time.

Trying here to go more than simple concept lines and aim to the actual shape. Also managed to have an aprox  of one main foil section, which is pretty radical , I assign this shape to structural / strength limitations along design intent.
That section from one of the teams, is featured in draft render foils above. All teams have a similar gral concept but of course details make speed &perf diff along plan & overall board shape.

Above starboard AC50 hull with Oracle light wind foil, still much draft and need to refine planshape,  outer vertical curve etc,  overall dimensions are aprox ok and rule compliant on the 4.200m box.  Port hull featuring Oracle high winds smaller & sharp dihedral mainfoil.

 Winglets are New Zealand style; Note bulb is gone, they have split winglets area. Other teams have the same feature like Artemis, with a more radical shape and vertical tips. France & BAR from the ones I have are flatter and more standard. Think OR ones left to depict.

Will place Artemis & TNZ mainfoils later to compare, this just a quick teaser as I need to keep drawing plus the AC Final is coming.
Either way a fun process to learn what top notch designers have done for this Cup Edition.

Jun 14, 2017

TNZ Capsize analyzed by Ken Read & Martin Fischer

Video source : America's Cup -
For us catsailors it doesn´t have much mystery as we've been there a few times. Baring away from a stopped position in 25 knots is about the hardest maneuver you can learn or experience.
Foiling cats have the advantage of reducing pitching and frontal capsizes as the main foil lift keeps your bow up.
In fact there is a wind range where sailing an A downwind you pitch or dig bow much less than an F18 for ie. Same with other foilers.
The F18 has a much broader and safer to sail and race wind range than any flying beachcat. You can sail in the breeze in other double handed foiler no problem too but chances you are going to start skimming or floating above say 20-25knots and high seas or chop.

Remember the AC45s floating mode at Plymouth in around 25-30knots of wind some years ago, I don´t think the AC50s would have survived that day in one piece:

The other problem with foilers arise when you have a wrong rake setting or foils generates too much lift (without any inherit designed height control like the AC50s hard Ls foils as opposed to Z or Js) , There you can have disastrous consequences as seen in the video .  And that is exactly what Fischer comments,  telling Read to forget about the winglet.

It is not on the rudder losing grip causing the pitch by itself, but going high on the L foil, almost lifting out of the water, which makes for a perfect pivotal point at the mainfoil, for the rudder to come out along the stern pushed hard by the Wing power.
Frontal capsizes are originated when your cat rig overpowers and your platform cannot react at same pace.

This capsize from a stopped positions bareaway in 25knots happens on a floater and we don´t have any winglet, thus losing control on your foiler and goin high fly  it is just a classic catamaran frontal capsize on steroids.

No rudder winglet  setting would have avoid that pitch in that specific situation.  Only alternative was less mainfoil rake, but there you had the risk of a classic submarine floating mode capsize.

Ainslie and BAR got the right settings and the right turn ratio, but it was a high bet , their were also close on going down. Ben knew it beforehand on the risks as he warns the team to prepare for a hard barewaway.

Jun 13, 2017

2017 Red Bull Youth America's Cup @Bermuda: Day 2

America's Cup 2017 @Bermuda: LV Finals, Artemis by van der Borch

Emirates Team New Zealand: Design, Built & Racing Masters

Top: New Zealand Team members,  click to enlarge & slideshow.  Event photos: ACEA / Gilles Martin-Raget & Ricardo Pinto / TNZ -

I was about to write an article on the entire New Zealand sail , desgin & shore teams, but reading Peter Burling statements in their press release made it redundant.
In two phrases below the kid aknowledge the work done by their co workers on land on the repairs made after the hard frontal pitch and on the design and built team for the speed they had today.

Team members photos above goes representing  Artemis & all other AC Teams crews. (note Filmmaker Nick Bowers as member of TNZ, send those training reels Nick! )
Below report sent by TNZ press-  

Champagne celebrations for Emirates Team New Zealand…the Kiwis winning the Louis Vuitton challenger series for the fourth time and doing it in some style.

By beating Artemis 5-2 they now take on Oracle Team USA in the America’s Cup match starting next weekend.
In a seventh race against the Swedes, initially delayed by light winds, Peter Burling dominated his arch rival Nathan Outteridge in the start box, heading off to round mark one in the lead for the first time in the series final.

From then on Emirates Team New Zealand were untouchable, the Swedes with no answer to the Kiwi boat’s speed.
Upwind and downwind Aoteraoa had the measure of Artemis, with an average speed almost three knots faster than the Swedish boat.

And with slick boat-handling producing a “fly-time” on the foils of 99.7 per cent the Kiwis sailed close to a perfect race.

“The boat was going seriously fast,” said Burling. “I think we are in great shape to take on Oracle.”

Dedicating the Louis Vuitton win to the Emirates Team New Zealand shore crew, Burling praised the massive effort they’d made to repair and prepare the boat.

“They gave us the tools we needed to win and this is a great way to be able to repay them today.”

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