A rendering of the Promas propeller and rudder system in profile


PROMAS is the latest development for meeting various challenges on the market. The system is customised for the individual ship and the shipping route to meet different ship profile requirements.

Superior design and fuel-saving capabilities

PROMAS is an integrated propulsion and manoeuvring system. The system consists of a propeller, costa bulb, hub cap, and twisted rudder. The integrated system is designed as one unit for creating the transition of water streamlined. The system is optimised for hydrodynamic properties. The design of Promas enables increased energy efficiency, propulsive efficiency, and manoeuvrability. Generally, the efficiency gain is 3-8% for single-screw vessels and 2-6% for multi-screw ships. The development results in efficiency improvements and consequently consumes lesser fuel for the ship.

The system is equipped with a bulb which optimises the hydrodynamic properties by reducing the creation of vortices and hub drag. This is making the system more efficient in propulsion thrust and consumes less energy. The propeller can be manufactured and custom-designed with four- or five-blades, to fit the operational vessel profile.


PROMAS can be equipped with a nozzle for vessels needing enhanced thrust effects. In other words, ships that require high bollard pull such as anchor handlers, fishing, tugs and trawlers. The rudder is designed to reduce the risk of cavitation and increase propulsive efficiency and manoeuvrability. It is also possible to equip the rudder with a robust extension flap for improved low speed manoeuvering.

PROMAS is an energy-efficient solution that is robust and reliable. Presented positive outcomes are possible by combining and integrating the components into one system. The PROMAS system is designed to simplify the installation process. The positive effects can be proven by extensive reference lists of various ship types and customers.

Key features

  • Higher propulsive efficiency
  • Improved maneuvrability
  • Hydrodynamically optimised system
  • Adjustable hub cap at installation
  • Shock pressure resistance
  • Ice class

Key benefits

  • Reduced fuel consumption
  • Lower environmental impact
  • Short payback period
  • Increased operation range
  • Compact and robust design
  • Designed to simplify installation
  • Reduced noise and vibration
  • 24/7 Service and support

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.

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