RedactedNarrative: Operator described that he and his son, Occupant, were traveling at approximately 90mph across Lake Mendota towards Picnic Point in a 2013 Liberator motorboat, when Operator began backing off the throttle and while still trimmed up, began turning right, around Picnic Point towards UW Madison, and lost control of the boat.  Operator described that the boat very quickly spun 180 degrees, throwing both Operator and Occupant overboard across the port side of the boat, and the boat must have flipped, because when Operator and Occupant came up from underwater the boat was fully capsized and the boat motors were stalled out.  Operator stated he believed the back end of the boat sunk first, because he and Occupant held onto the bow until the boat completely sank within a couple of minutes.  operator stated they were rescued by another boater about the time the boat fully sank.  Good sam helped Operator and Occupant aboard boat and transported them back to Marshall Park in Middleton, where they had launched the Liberator.
NameOfBodyOfWater: Lake Mendota
NearestCityTown: Madison