The optimisation of the nozzle profile, combined with the hydrodynamic rudder profile and the option to apply the Van der Velden® FLEX Tunnel, provides considerable propulsion efficiency.
The inside of the Van der Velden® DOLPHIN XR nozzle is constructed of Duplex material. Special attention is paid to applying sufficient welding material to the inlet and outlet of the nozzle to ensure an optimal connection with the carbon steel section.
Van der Velden® DOLPHIN XR nozzles provide considerable propulsion efficiency when combined with a previously installed manoeuvring system. Recent projects have shown excellent results.