Dalian Shipyard has ordered hydrodynamic rudder systems for six new 7,100 teu Asiatic Lloyd container vessels from Damen Marine Components (DMC).
DMC will provide one Van der Velden Atlantic Rudder for each vessel. For these container vessels, asymmetric rudder technology (ART) will be applied in the design of the leading edge of the rudder and a rudder bulb in the wake of the propeller axis further improves the hydrodynamic properties.
“We will be benefitting from this highly optimised and high efficiency Van der Velden rudder design by DMC in realising our goal of achieving vessel efficiency to the highest possible emission ratings,” says Tonci Zdunic, group fleet director, AL Group.
The six 255 metre feeders will be delivered during 2023 to 2025. Damen will provide the tailor-designed rudder for each of the vessels, measuring 61 sqm and generating 3,300 kN of torque.
As the propeller in forward thrust has a fixed rotation direction, the asymmetric leading edge improves the water flow by directing the turbulent water along the rudder blade more efficiently. Even more hydrodynamic optimisation is achieved by the bulb which is positioned behind the centre of the propeller and eliminates this turbulence, reducing resistance and improving torque.
“We are proud to have been selected by Asiatic Lloyd as partner for reaching their targets of improved operational efficiency and reducing the environmental footprint of their fleet,” said Wim Knoester, commercial director of Damen Marine Components.
