a high-tech racing catamaran wipes out during an exhibition run and sends crew members overboard. >> it was a real quick, violent crash. when you see somebody, a teammate of yours, fall through a wing like that, you just never know what's going to happen. >> june 13th, 2011. oracle racing teams debut a high speed catamaran to promote the 2013 americas cup in san francisco bay. the bay is known for some of the world's most stunning scenery, but unpredictable currents and a powerful wind tunnel through the golden gate can make for wild rides on the water. >> san francisco bay is one of the most exciting waters in the world. there's huge currents here. there's a lot of wind types. so it's very challenging to sail. >> the multi-hull catamaran