Presented like this, this plot would tend to show that there is no strong relationship between being rolled and being on the safe side of this graph! But then these are just 5 data points, so statistically not very robust, it would be more interesting if boats that didn't capsize had been included. This is from a report, may be there was another graph somewhere in there showing the full picture.Here's a plot showing S-H boats that were rolled ( as in fully capsized ) overlaid on the UK MCA commercial requirement for sailing craft produced by Wolfston. This is from Kim Taylors paper on the event.
Also I am a bit wary of a graph effectively saying you can't go offshore in a yacht less than 7m long as experience shows that it is possible.
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