Rossi Navi 49-meter megayacht "Param Jamuna IV" to launch in a few days Come this Saturday, the next yacht from Rossi Navi is expected to launch. She is a 49-meter all-aluminum Enrico Gobi-designed megayacht called "Param Jumuna IV" ex. Project 'Prince Shark' (FR027). The light aluminium semi-planing hull and superstructure and twin MTU 12V4000 M93L engines with 2,580 kW power make this three-decker yacht a high-performance vessel with a speed of 23 knots. Its cruising performance is guaranteed by the Humphree Interceptors while the anti-rolling pair of stabilizers guarantee on-board comfort even when anchored in the harbour.