Ainslie compares yacht sailing to F1 driving

Four-time Olympic champion Ben Ainslie says switching from a Finn dingy to an AC45 catameran is like "going from a go-kart to an F1 car."

Great Britain's most decorated Olympic sailor is currently competing with 'Ben Ainslie Racing' in the second round of the America's Cup World Series in San Francisco, US.

Ainslie tells BBC Sport that "although it will be tough" he hopes to a genuine challenge for the 35th America's Cup which will take place after 2013.

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