SkySails-Footage
SkySails-SkySails Performance Calculation
Googled Skysails and came up with this site. I have seen these things towing surfers but never SHIPS.
They are obviously a threat but not sure at Sea Whos regulations they would come under?
In the performance link above there is a ref to the units made at present for small ships but soon they will have large skysails for large ships. Maybe they should be regulated to carry transponders?
Pace