Rossi Navi Launches 70-meter superyacht "Polaris" Italian yard Rossi Navi has launched their largest superyacht to date, the 70-meter "Polaris". According to the yard, after four years of construction the yacht has now officially hit the water. For those following the build closely she was under construction as Project King Shark. Not only is Polaris the largest build by the Italian builder she is an Ice-class vessel made to traverse even the Polar regions. Her sleek and very refined superyacht appearance may not lend to this notion but she is built to Ice-Class.