ASYMMETRIC RUDDER TECHNOLOGY (ART^TM TECHNOLOGY)

Due to the rotation of the slipstream, conventional rudders constantly operate in an apparent angle of attack. In addition to increasing drag, this also results in cavitation on the rudder blade.

Van der Velden Marine Systems now offers Asymmetric Rudder Technology (ART^TM Technology) which has been especially developed to improve propeller flow. A special lay-out modifies the profile above and below the centreline of the propeller in such a way that the effects of the rotation of the propeller slipstream are countered. This expands the cavitation-free rudder angle and reduces drag (increasing speed or improving fuel consumption). 

Reduced rudder cavitation results in an extended life-span of rudders and shaft bearing systems. Other important benefits of reducing cavitation are low vibration and low noise levels.

Van der Velden ART^TM  is especially suitable for vessels with a velocity above 24 knots and can be applied to all Van der Velden rudders.

Benefits

• More speed or fuel reduction
• Extended life-span of rudders and shaft bearing system
• Low vibration & low noise levels  (More comfort)

Applications

The ART^TM Technology is especially suitable for vessels to which more speed or more comfort is important. For instance container feeders and cruise- and ferry vessels.