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Controllable Pitch Propellers

Servogear Ecoflow Propulsor TM

Servogear Ecoflow PropulsorTM is a unique controllable pitch propeller (CPP) system for high-speed workboats, fast ferries, offshore vessels and yachts. The concept offers an optimal combination of speed, bollard pull, manoevrability and fuel efficiency. Learn more about CPP here (Kasten Marine Design).


Through continuous theoretical and practical research since 1973, we have developed an incredibly efficient propeller system. These are successfully running on a large number of vessels worldwide. Search in our selected references catalog here. 


The Servogear CPP system covers an engine range of 400 to 4000 kW and speed up to 50 knots.


Servogear Controllable Pitch Propeller (CPP) Concept - Servogear Ecoflow Propulsor


Servogear deliver complete solutions, tailor made for each vessel. Learn more about the components which together forms the Servogear Ecoflow PropulsorTM:

Advantages of Servogear CPP

Efficient propulsion leads to lower fuel consumption, more economic operation, and less pollution. 


  • Reduced levels of noise and vibrations
  • Slimmer and more efficient equipment
  • Reduced hull resistance
  • Wider operational range
  • A unique combination of high speed, superb acceleration and ample pollard pull
  • Reduces NOx and CO2 emissions
  • Improved fuel economy


Servogear references

Proven Efficiency of Servogear CPP

Tank and full-scale verification tests (graph below) have proven that the Servogear's controllable pitch propeller system is more efficient than any other known propulsion concept available for high-speed vessels operating in the range 20 – 50 knots.


The graph shows the typical efficiency of the different propulsion systems. Results achieved with an optimized Servogear Ecoflow PropulsorTM have been plotted in for the purpose of comparison. The tests have been conducted by SSPA in Sweden and Marintek in Norway.


Graph demonstrating propulsion efficiency - controllable pitch propellers by Servogear


Since 1973 Servogear has delivered more than 1750 controllable pitch propeller installations worldwide. Search in our references to learn more about our projects. Please contact us for additional information about controllable pitch propellers from Servogear, or if you have new information about any of our references.