Juan K and team has some explaining to do - first Rambler 100 (Speedboat) capsize in the Fastnet a couple years ago, Artemis AC72 breakup and death of Bart, now Cheminees IMCO 60 broken into a few bits???
Or maybe that happens more to the ones that have many top racing boats
. It happens more to him because he has more top offshore racing boats than anyone else. His boats dominated the two last VOR and did not broke.
Rambler lost the keel and capsized due to that. I can remember several top racing boats that lost canting keels. They are still learning about reliability on canting keels, mostly in what regards metal fatigue. Rambler was far from new when he lost the keel. Maybe some pieces should have been changed already. That kind of calculations regarding efforts on keels and even the building of the canting keels themselves as to do with engineers and it is a very specialized subject.
Cutting edge boats, even some cruising ones are today designed by a team. The NA is the leader of the team but he is there for the general concept and to keep the team on track. The design is a cooperative effort.
Regarding Artemis America's cup cat he was just one in a team. Those boats are designed by an even bigger number of specialists. If you want to blame somebody blame the engineer responsible for the boat structure and efforts calculation.
I am not saying that in what regard Cheminees Poujoulat there was not a problem with the design. I don't know. The boat was holed and repaired on the area where it broke. Let's see what they can find from the analysis of the wreck before putting blame on somebody