Slideshow

The America's Cup: nerves, skill and a lot of computers

The teams used to test their boat designs in wind tunnels and water tanks, but they now do most of it with computers

  • Teams in the America's Cup use software to model design changes to their boats

  • Emirates Team New Zealand's catamaran hydrofoils in the America's Cup. A dagger board in the center of each hull lifts the boat out the water, and the rudders at rear help with stabilization.

  • The 131-foot wing sail on Team Emirates New Zealand's America's Cup boat

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