HYDROSPOILER

The hydrospoiler can be combined with the Van der Velden Marine Systems HD-Profile Rudders. By improving the propeller wake, it radically improves propulsion efficiency.

In addition, a hydrospoiler reduces vibrations in the ship's stern section and improves its course- keeping capabilities. 

Benefits

• Speed gain across the whole range (approx.  5% to 8%)
• Stern section steadier due to improved flow-off  between the rudders
• Ship recovers faster from major manoeuvring motions
• Improves poor manoeuvrability to one side,  caused by the propeller's direction of rotation in a twin rudder system