Extreme Kite-sailing

[st599]

http://www.skysails.info/index.php?L=1

How does one work out which tack she's on?

 

[nyx2k]

ive watched dozens of fast moving kite surfers on the local beach and often wondered if a kite could be used to move my 12ft speedboat hull

 

[moodycruiser]

These people have been around for a while .