Please select your home edition
Edition
RS Sailing 2021 - LEADERBOARD

Cup Spy: AC40 capsizes, recovers and hits 40kts - Day 2

by Richard Gladwell/Sail-World.com/nz 22 Sep 04:24 PDT 22 September 2022
AC37 Joint Recon Program - America's Cup Recon - Emirates Team New Zealand - AC40 Day 3, September 22, 2022 © Adam Mustill / America's Cup

Emirates Team NZ's new AC40 got a few monkeys off its back on just the second day of sailing - managing to crack the 40kts barrier, do a full nosedive, a capsize and a full sail away recovery.

On a not particularly pleasant early Spring Day, in Auckland, it rained, drizzled, had no wind and then plenty - everything but sunshine. Conditions were reported as 6-13kts from the SE, with flat water. Dockout was 1135hrs and return at 1710hrs. J1, J2, J3 jibs were used.

The AC40 test boat - which will also be used in America's Cup 2024 regattas for the Youth and Womens America's Cup - gave the four crew - a solid workout on just the second day of sailing, doing 40 knots of boat speed in under 15 knots TWS (True Wind Speed) - sailing at more than 3x windspeed.

The biggest takeaway is that the AC40 is quite tender (or tippy) can capsize at slow speed or stopped, but is quite easily righted - gets rid of any water that comes into the cockpit and keeps sailing. Emirates Team NZ Coach, Ray Davies who is one of the four man crew explains the eventful day to the AC37 Joint Recon program:

The AC37 Joint Recon team reported : "The capsize happened at slow speed after leaving team chase boat. Not enough forward movement was put onto the AC 40 before it was let go from of the chase boat. The AC 40 got caught "in Irons" (head to wind). It started drifting backwards, the head blew off and the boat gently lay on her side.

"Crew member Nathan Outteridge, who was to leeward, scampered out of his cockpit and went to the bow along the foot of the jib. He attached a line from the chase boat and with a gentle tug on her bow, pulling to windward, she righted easily."

In his interview, Ray Davies explains that the crew checked below decks, and a bucket was passed down, but came back up empty.

Crewing today were Nathan Outteridge and Sam Meech (helms), Ray Davies trimming and Nick Burridge on semi-automated flight control, it was the second day of sailing for the 'rookie' crew, all of whom had their first experience of foiling monohull sailing, the day before.

The recon team reported that the AC40 "Seems to start to lift at just over 10 knots boat speed, Estimated TWA 70 degrees Estimated speed to be fully foiling 13.5 knots boat speed". The AC37 did 14 tacks and 16 gybes in the 5.5hrs session.

There was "still some porpoising but less than yesterday. The AC37 was very fast, over 33 knots in less than 14 knots TWS". Downwind ride height was reported as "very fast but still big changes in ride height. Doing over 40 knots boat speed in under 15 knots TWS"


Related Articles

Alinghi RBR engage a design team - Video
Alinghi Red Bull Racing call on their partner F1 team for some design muscle - Video Alinghi Red Bull Racing call on their partner F1 team for some design muscle, to help get their testing program underway, and the output incorporated in their new AC75 raceboat for the America's Cup 2024, in Barcelona. Posted today at 3:41 am
Cup Spy: Swiss make steady gains
Alinghi Red Bull Racing has spent two long days on the water off Barcelona, as the crew work up Alinghi Red Bull Racing has spent two long days on the water off Barcelona, as the crew work up their first generation AC75, purchased from America's Cup champions Emirates Team New Zealand. Posted today at 1:22 am
America's Cup: Swiss designer describes approach
It's a big responsibility to lead the design for a team that has twice won the America's Cup It's a big responsibility to lead the design for such a legendary team that has won the America's Cup twice, and even more so after partnering with Red Bull and benefiting from the knowledge of Red Bull Advanced Technologies. Posted on 5 Oct
Cup Spy: AC40 gets close to AC75 speeds
"We got up to about 46kts or something like that today - we weren't pushing it too hard on Day 5," The AC40 was put through its paces in a morning session on the 2021 America's Cup Courses D and E off Auckland's Eastern Beach, in the strongest winds yet experienced. The day was punctuated with a new top speed and another capsize. Posted on 5 Oct
Cup Critiqued: The twin Universes of AC75 & AC40
First look at Barcelona as a venue .. Youth and Womens Worlds .. Cup budget cap? Over the past week, we have gazed into the twin universes of the AC75 and AC40. The AC75 insight was more one of getting a first look at Barcelona as a venue. The jury is still out on the AC40 - but so far it looks very good indeed. Posted on 4 Oct
AC40 for Brits is on its way
A second AC40 has exited the McConaghy Boats build facility destined for INEOS Britannia A second AC40 has exited the McConaghy Boats build facility in China, destined for the America's Cup Challenger of Record, INEOS Britannia. Posted on 2 Oct
Cup Spy: Swiss hit cross-swell conditions
Alinghi RBR continued to work up their first generation AC75, off Barcelona on Friday As we are now in the month of the 2024 America's Cup Match, the weather conditions and how they are handled by the AC75, are as much of interest as the performance of the Swiss team, who are the only team sailing out of the 2024 America's Cup venue. Posted on 30 Sep
Cup Spy: AC40 blasting at 45kts - Day 5
Emirates Team NZ's America's Cup crew pushed the limits on the AC40 on a murky Auckland day. Emirates Team New Zealand's champion America's Cup crew found the limits of the AC40, the hard way, triggering the first serious capsize, as well as setting a new top speed mark of 45kts. Posted on 30 Sep
Notice of Race issued for Womens/Youth AC
America's Cup Events has released the Notice of Race for the Youth and Womens America's Cups The Notice of Race for the 2024 Women's America's Cup and Youth America's Cup has been posted and firm plans can now be laid by prospective teams from around the world to compete in the glorious surrounds of Barcelona in 2024. Posted on 29 Sep
America's Cup: Recon Diary - Pretty Epic
Burling and Tuke stepped aboard ETNZ's AC40 for a blustery first taste of the AC40 Returning to New Zealand from the European summer circuits, Pete Burling and Blair Tuke wasted no time in re-joining the extensive Kiwi testing programme, stepping aboard ETNZ's AC40 for a blustery first taste of the most sensational boat of 2022. Posted on 28 Sep
Hella Dual Colour Floodlights - 728 x 90px - 1 jpg BottomArmstrong-A-Wing-728x90 gif BOTTOMCoast Guard Foundation FOOTER 2