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hydrofoil sailboats - neck and neck - america's cup 2013 race (san francisco)

America's Cup 2013 two finalist hydrofoil catamarans "Oracle Team USA" and "Emirates Team New Zealand" racing neck and neck on the San Francisco Bay.­

The sail of the AC72-class hydrofoil catamarans is a rigid wing made of carbon fiber.­ When hydro-foiling, those sailboats can go about twice as fast as the wind.­

San Francisco Bay Trail, Golden Gate National Recreation Area, San Francisco, CA 94123, USA

America's Cup 2013 two finalist hydrofoil catamarans racing on the San Francisco Bay.­

For more info about hydrofoil sailboats, go to en.­wikipedia.­org/­wiki/­Sailing_­hydrofoil.

For more info about America's Cup 72 class boats (AC72), go to en.­wikipedia.­org/­wiki/­AC72.

For more info about the America's Cup race, go to en.­wikipedia.­org/­wiki/­2013_­America%27s_­Cup and en.­wikipedia.­org/­wiki/­America%27s_­Cup.