According to this NYT article[1] the Saildrone is self-righting. There may also be some hollow space in the upper portion of the mast to prevent it from turtlin

According to this NYT article[1] the Saildrone is self-righting. There may also be some hollow space in the upper portion of the mast to prevent it from turtling, like how a Hobie Cat has the mast-blimp. >Underneath the boat are both a rudder to aid in steering and a keel, which will right the boat if it is knocked over. [1] https://www.nytimes.com/2016/09/05/technology/no-sailors-needed-robot-sailboats-scour-the-oceans-for-data.html https://www.nytimes.com/2016/09/05/technology/no-sailors-nee...