Becker Head Office Hamburg
Becker Service (German office hours):
Becker Service Hotline (cell phone, 24/7):
Becker Service Email
The rudder is one of the most heavily strained components on a ship. Water flow with a higher velocity and a slight angle over a rudder blade will, under certain conditions, result in cavitation which will increase fuel consumption and cause erosion on the rudder’s surface. Conventional rudders are placed behind the propeller with the rudder cross section arranged symmetrically on the vertical rudder centre plane. However, this arrangement does not consider the fact that the propeller induces a strong rotational ﬂow impinging on the rudder blade. This results in areas of low pressure on the blade, inducing cavitation.
The Becker Twist design equalises pressure distribution on the rudder blades. To avoid cavitation and to improve the manoeuvrability performance of a full spade rudder, Becker Marine Systems has enhanced the development of the Becker Twist Rudder. With the Becker Twist Rudder solution cavitation and gap cavitation are prevented, resulting in lower servicing and maintenance costs. In addition, the Becker Twist Rudder reduces noise caused by cavitation.
Especially suited for:
Above: Becker Twist Rudder as part of a Performance Packge with the energy-saving device Becker Mewis Duct® Twisted. (Seen in the background an installed Becker Mewis Duct®.)