That is a great video that was posted on another thread by James Wilson but as this thread seems to be the local where those that like fast boats hang around, here it is:
Not a very frequent figure on a Figaro II that is a solo racing boat and therefore with a bigger tolerance than a boat designed to do full crewed racing.
These are no amateuts but professional racers testing the boat limits. They are followed not by a reporter boat bot by their coach that is filming for analyzing the performance and errors later with them. I guess they had a lot to analyze that day
They explain the accident:
They where training at the EMC Training (Training Center Mediterranean).
On the boat Xavier Macaire and Yves Le Blevec going at 15 knots downwind with a 35K wind. They put up their small spinnaker and quickly pass to 20K speed. "Normally Macaire says, the Figaro, it's manageable on these conditions ..." Except that in this case, the operation resulted in an involuntary spectacular figure, the kind it is usual in multihulls.
The mistake? "We had not moved all the equipment to the back of the boat and we had to sail well downwind to stay away of the coast," said Macarius. "So it was difficult for Yves to unload the bow." Good result.