lpdsn
Well-Known Member
That is not an easy one to answer because there is little agreement about how this sort of damage should be repaired, partly because there is a lack of guidance from the designers and builders, partly because relatively so few have been damaged and partly because each damaged boat has its own peculiar issues. Not sure there is any form of effective post repair structural testing - indeed AFAIK there is no testing of newly built boats. So repairs rely on the repairer assessing what the damage has been and repairing to the original specification.
I know we've discussed this before and have sort of agreed to disagree, but it is only an assumption that most other boats have not been damaged. Cheeki Rafiki survived damage and (possibly incomplete) repair for a number of years before being lost and the damage that caused her loss was not spotted before her loss, and was very likely not to have been spotted by the missed cat 2 interim survey.
A number, how many is a complete guess, could be carrying around damage of a similar or lesser extent without it being detected. CR appears to have had a level of wear and tear and heavy usage that is above that of the vast majority, if not all, of her sisters, so there is no indicator than less heavily used vessels have no hidden damage. In the absence of a reliable and rigorous means of checking boats of a similar construction it's hard to tell whether a similar event will happen in the future. Unfortunately, only time will tell.