No longer sold

Contaz azimuthing thruster

Our azimuthing contra-rotating propeller, type Contaz, was the world’s first thruster system designed and built especially for merchant vessels. It combines the benefits of contra-rotating propellers with steerable thrusters.

Azimuth thruster with contra-rotating propellers

Development with Azipull units, ELegance pods and permanent magnetic technologies have made it possible for KONGSBERG to provide customers with other solutions which fulfil the same needs with less total cost of ownership. KONGSBERG has thus decided to end the production of Contaz thruster units to harmonize its future product portfolio.

The Contaz azimuth thruster range with contra-rotating propellers provide high propulsive efficiency and reduced vibration. Efficiency gains are 10 - 15 per cent over conventional azimuth thrusters. The aft propeller regains some of the energy losses in the stream as well as significant rotational losses, therefore there is a lower installed power requirement that can release space on board and lowers fuel consumption. Contaz units have a range of stem lengths and are ideal for passenger/car ferries and vessels requiring high propulsive efficiency, i.e. low fuel consumption.


Key features

  • Lower need of installed power
  • Lower fuel consumption
  • Real redundancy in propulsion and steering
  • Full steering control also at low speed
  • Lower noise and vibration levels

Technical data

Thruster type CONTAZ 15 CONTAZ 25 CONTAZ 35
Max Input Power (kW) 2200 3000 3700
Input speed (rpm) 900 - 1500 900 - 1500 750 - 1200
Dry wt (t) 32 50 70
Max Prop. Dia (mm) 3200 3700 4000


Services and support

  • 24/7 Technical support

    Our 24/7 technical support team is there to help at any time, day or night, wherever your vessel is.

  • Conversions, retrofit and refit

    We understand the importance of having the right parts, available in the right place, at the right time.

  • Training

    Ensure that your crew is properly and thoroughly trained. This will reduce operational risk, downtime and maximise return on asset investment.

How can I help you?