HI, i'm italian...?

Question

i need to know how do you say (in technical language) when a boat, caused of the wind, make like this one http://www.youtube.com/watch?v=6rvf_SPfx1Y

Answer 1

That's called broaching.

A sailboat broaches when its heading suddenly changes towards the wind due to wind/sail interactions for which hull hydrodynamic reactions cannot compensate. This happens when the aerodynamic force on the rig greatly exceeds the hydrodynamic force on the hull, usually due to a sudden increase in wind strength. In small boats and dinghies, broaching often leads to capsize or a Death Roll.

Answer 2

capsized