another one in light wind:
gong board + sword hydrofoilhttp://vimeo.com/86701972
Nice video in a 3 to 6 knots winds
Looks like we're getting close to reality to the 2 - 4 knots joke
But are those lines really 70 meter long or just a mistake
I tend to look at the board speed.
The fastest ratio the serious racers were claiming was about 2.5 times the wind speed, so being generous, I going to divide the board speed by 3 to get the minimum wind.