Re: Another America’s Cup entry destroyed
Originally Posted by T34C
Where did this concept that wing sails can't be de-powered come from? A sail generates lift (gets its power from the curvature of the outer surface) a wing sail has the ability to be flattened more than a traditional sail. Thats how they get a semi solid surface to function on both tacks. They have the ability to bend the wing in an indefinite number of positions adding more or less power, on each tack. that also gives them the ability to leave the wing virtually flat on both sides and effectively powerless.
In an interview in Alameda several days before the accident, Max Sirena, the skipper of Luna Rossa, explained his own comfort zone in an AC72 after his team’s extensive training in its yacht in Auckland.
“Over 20 knots, it’s a completely different game, I can tell you that,” Sirena said. “For sure, you enjoy sailing these boats up to 18, 19 knots.
“Over 20, you start to be scared about the boat, because they are super powerful. Over 20 knots, you just cannot depower the boat as much as you want.”
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