It is possible to design watercraft that will travel exactly where wind come from.

Using wind turbine with horizontal or vertical axis that power propeller in the water that boat should be able to have net resultant force propelling craft straight up the wind.

I wonder if is even theoretically possible to design such a sails configuration that do this same ?

I can imagine the closest to ideal could be configuration of two kites flying 8 figure always on opposite wind direction with resultant vector straigh forward...

Can't do this same with sails I am affraid

sorry this dilema belong more to general discussion then windsurfing in particular - so I move topic there for these interested.

Anyway I hate to ride on windsurfer straight down the wind even that possible _ I think that riding straight up will be evenly awfull