Oracle´s catamaran

The towering Oracle catamaran designed to "fly on water" in its defense of the America's Cup drifted out to sea Tuesday after a spectacular flip into San Francisco Bay during a training run.

Onlookers watched in amazement as the $8 million AC72 racing craft dug its bow into the water, heaved and slammed sideways into the bay shortly after 3 p.m. just off the shoreline near the St. Francis Yatch Club.