sailinganarchy.com
And their stated top speed = 13 knots !
Or at least it is claimed in the Madforsailing.com article on them.
Not much is it ? 13 knots to speed.
Apparently these boats can do 1.9 times the windspeed at 5 knots wind and 0.5 times the windspeed at 26 knots wind.
I think a normal standard beach cat does something like 1.0 to 1.3 times the windspeed in 5 knots and about 0.8 times the windspeed in 20-25 knots.
But I would definately want a ride on these biggies in 5 knots of wind !
Wouter