Who were the sailors who survived 18 hours after sperm whales sank their yacht

A yacht with four crew members sank in the South Pacific after colliding with a whale around 250 nautical miles north of Norfolk Island. The 51-foot Tai Tam suffered severe hull and steering damage and started taking on water. The crew activated an emergency beacon, declared a mayday and worked for hours to control the flooding before abandoning the vessel for a life raft.