Becker Twist Rudder

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.

Preventing cavitation with innovative rudder design.

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.

 

 

Optional:

SA (Heel Pintle Rudder)

SC (Full Spade Rudder)

King Support Rudder

Rudder Bulb

Becker Bearing Monitoring System

Becker Intelligent Monitoring System

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Especially suited for:

  • Container liners
  • Tankers
  • LNG/LPG carriers
  • Car carriers
  • ConRo/RoRo
  • Ferries
  • Yachts
  • Navy ships

Advantages:

  • Optimised profile
  • Reduced weight
  • No cast parts
  • Less cavitation
  • Reduction of rotational losses
  • Improved propulsion efficiency
  • Minimised drag
  • Power savings
  • Reduced wear and tear
  • Best propeller coverage

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®.)

 

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Contact us

Becker Head Office Hamburg
Tel.: +49-40-24199-0

Becker Service (German office hours):
Tel.: +49-40-24199-1410
Becker Service Hotline (cell phone, 24/7):
Tel.: +49-173-9229311
Becker Service Email

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Shanghai, China, 5th-8th December 2017

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