Tami Oldham Ashcraft knows this feeling. At the age of 23, while she was sailing the South Pacific, Ashcraft was caught in a violent hurricane. The 50-foot (15-meter) waves overturned her boat. Ashcraft, who was below deck, was knocked unconscious. When she awoke 27 hours later, the boat had turned right side up again, but the storm had been so violent that the sails were destroyed