Hobie Alter is most often credited with coming up with the beach catamaran. Amazingly, the Catalan sailors in the most North East province in Spain (bordering the Med) have been racing a beach cat, the "Patin a Vela" since the 1920's. This catamaran has no rudder, no paddle, no daggerboard........ you tack by running forward to the mast and steer by ooching the body. And these guys race in big waves and big breeze on the Mediterranean! You can make an on-the-fly adjustment on the rake of the rig (it does look like they are pulling on some string during a tack) but for the most part it's all where you put your body that makes the difference. You just have to watch the videos.
This one shows how you tack a Patin a Vela;
This one shows how athletic these catamarans are;
And even the Patin a Vela catamarans seem to attract those showoffs who love to fly a hull (nice beach babe tucked into the video as well).
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