Abby Sunderland, 16, is feared lost at sea in her attempt to become the youngest sailor ever to circumnavigate the globe. Her brother Zac said Thursday afternoon that Abby's boat was most likely not completely submerged because there's another alarm that sends off a signal if it goes 15 feet underwater.
From ABC News:
Jeff Casher, an engineer on Sunderland's support team, told ABC News that he last spoke with the 16-year-old sailor before 6 a.m. PDT, after she had been knocked down twice during the night because of strong winds -- meaning that her sail had touched the water.
One of those knock-downs, Casher said, ripped the radar off the boat. She had been speaking with Casher on a satellite telephone earlier because of engine problems and was in the process of fixing those problems when she told Casher she'd call right back.
She has not been heard from since, except for the distress signals.