We have been working on the Goose sailboat in the Phlippines.
It is a 12ft version of the PDRacer. We took a lot of learning from our PDRacer experience. We have regular racing at two clubs in the Philippines.
The boats are much faster than the PDRacer. Top speed measured on a lake is 27km/h.
They carry one or three adults and move well.
Very nice for teaching students too.