terminal said..
This is a windsurf trimaran. That is one possible route to take for a bi-directional windsurfer with J foils.
Sailrocket is a uni-directional speed machine. Some speed windsurfers have only one boom side and an asymmetrical fin. It would be a lot easier to design a unidirectional J-foil windsurfer, but a bi-directional one could be done where the leeward J-foil was clear of the water.
I have read an article by Kevin Pritchard where he mentions the Starboard designer Tiesda You (who is a small guy) keeping up with Kevin speedwise by using a trimaran windsurfer he had built.
To be honest, I can't see why that trimaran board would be as fast as an early '80s Div 2 board or a Raceboard, if you want something for light winds. That low-prismatic shape was tried but it was slower than a high-prismatic shape. Skinny shapes don't plane well and if you're not planing, a longer U-bottom shape is better.
