Please select your home edition
Melges 14 2019 Leaderboard

America's Cup: Video shows Luna Rossa came close to a capsize

by Richard Gladwell/ 20 May 23:32 BST 21 May 2020
A short-crewed Luna Rossa lights their afterburner during training in Cagliari, Sardinia © Luna Rossa

Video published on leading Italian sailing website Farevela shows that Luna Rossa exhibited many of the same moves as Emirates Team New Zealand's Te Aihe, in the kiwi AC75's capsize on December 19, 2019.

The Italian America's Cup Challenger was sailing in 10-12kt breezes, and race training, when the AC75 is generating its fastest speed as a function of the windspeed.

Both incidents had a similar genesis in that the two AC75's had just executed a high speed "slingshot" gybe, foiling in a normal position with both main foils immersed and lifting, the rudder wing was also generating lift with the AC75 under control and flying moderately high. Initially Luna Rossa is trimmed down slightly by the bow, but viewed in slow motion, the AC75, now riding on just a single foil rotates to go bow up before the rudder starts aerating and putting up a very pronounced wake. Interestingly the wake from the main foil is extended well back and may have affected the operation of the rudder wing, causing it to ventilate, lose grip, and the stern sinks as the bow is pushed even higher by the main foil and the boat continues to rotate skywards.

At the extreme point of the rotation, Luna Rossa's main foil also stalls throwing up a very solid foil wake, while the rudder and its wing throws a big rooster tail of spray, while in normal operation its wake would be minimal.

Like Te Aihe, Luna Rossa crashes back into the water and continues to slide across the surface. But there the two incidents have a different ending as Luna Rossa is able to round up into the wind and the canted windward foil comes into play and pulls the AC75 upright.

In Te Aihe situation the Kiwi AC75 begins to round up, but not sufficiently for the canted windward wing to provide the required righting moment and the AC75 capsizes, lying on her side waiting for assistance.

Emirates Team New Zealand Capsizes

Check out this footage captured by Patrick Williamson of the moment Emirates Team New Zealand went swimming with the dolphins.

Posted by Live Sail Die on Wednesday, December 18, 2019

Related Articles

America's Cup: Kiwi PM pours cold water on Cup
Prime Minister Ardern says no 'carte blanche' for America's Cup teams to enter New Zealand Prime Minister Jacinda Ardern made it very clear that under current criteria, America's Cup teams would not get a carte blanche to enter New Zealand. Posted on 3 Jun
America's Cup: Youth foiling monohull sea trials
The new Youth America's Cup class the AC9F undergoes successful sea and foiling trials in Auckland. The foiling monohull, the AC9F has undergone sea trials and foiling tests in Auckland, now that the Alert levels have dropped in New Zealand and life has almost returned to normal. Posted on 3 Jun
Timing of The Ocean Race start under review
Impact of Covid-19 situation on The Ocean Race 2020-2021 forces rethink on start date Co-owner of The Ocean Race, Johan Salén talks about the impact of the Covid 19 crisis on the 2021-2022 edition of the crewed round-the-world race and the advantages of ocean racing. Posted on 2 Jun
America's Cup: INEOS Team UK sails Britannia
America's Cup: INEOS Team UK sails Britannia again on Solent as Auckland build up starts Ineos Team UK, skippered by Sir Ben Ainslie, is gearing up to take part in the 2021 America's Cup being and has restarted their sailing program on the Solent. Posted on 2 Jun
America's Cup: Dean Barker in talks with NZ Govt
Arrival of production crew for Avatar 2 puts America's Cup exemptions into new focus Progress appears to have been made allowing America's Cup teams into New Zealand following the arrival of 54 members of the production crew for the second in the Avatar series, being filmed in Wellington. They are now in 14 day quarantine in a hotel Posted on 2 Jun
Bob Fisher and Rob Mundle - The Original SINS
This week on Adventures Weekly Nic chats with two incredible sailors and journalists This week on Adventures Weekly the Sailor Girl, Nic Douglass took on the challenge of chatting with two incredible sailors and journalists, as well as being two of the founding members of the Society of International Scribes; Bob Fisher and Rob Mundle. Posted on 1 Jun
The Black Art of performance analysis
Ben Ainslie and Emily Nagel on the black art of performance analysis America's Cup skipper, Ben Ainslie with Emily Nagle on on the science of performance analysis, or is it really a Black Art? In this video they explain how performance data is used, based on their SailGP experience with the F50. Posted on 29 May
America's Cup: Defiant checks out of Pensacola
Defiant departed the American Magic's winter base at Pensacola on Wednesday Defiant, the groundbreaking AC75 racing yacht built for New York Yacht Club American Magic, departed the team's winter base at the Port of Pensacola late in the evening on Wednesday, May 27th, 2020 Posted on 28 May
America's Cup economic benefits set to take a hit
International visitors for Cup unlikely without closed border exception for superyachts and fans Thoughts of shifting the dates of the 36th America's Cup have been dismissed by Emirates Team New Zealand CEO, Grant Dalton. "There is no intention to move the dates", Dalton told Sail-World on Monday. Posted on 26 May
America's Cup: Te Aihe returns to a changed world
Emirates Team New Zealand's AC75 arrives home in the dark after globe trotting for four months It is not so much a triumphant homecoming from Europe for the Emirates Team New Zealand AC75 ‘Te Aihe'- rather a low key but very welcome return in the dark hours of Tuesday morning after a global tour lasting four months Posted on 26 May