We deliver custom tailored solutions for everything in marine propulsion technology!

Celebrating 10 Years Anniversary

Ten years of creating, developing and delivering marine propulsion solutions!

About Idea Marine

Idea Marine AB was founded 2010 by Naval Architect Ola Stephanson.

Since the start ten years ago the total turnover has been about EUR 4 million. Large investments in propulsion analysing tools has been made, e.g DNV Software, CAD, Vibration and Power measurements etc. Idea Marine is the only Swedish firm specilized in Power measurements of ship propulsion.

Our services

Pitch Propeller Blades

We measure and analyze your plant in respect of fuel consumption and operation. Since the start 10 years ago we have delivered some 40 propeller blades often with an improved efficiency of 10%. Normally we also reduce vibration/noise levels.

Design and Supply of Fixed Pitch Propellers

Idea Marine deliver improved fixed pitch propellers after analyze of your existing plant.

From 450 mm dia to 5400 mm. We normally issue a performance guarantee if power measurement has been carried out.

Power and Vibration/Noise Measurements

We perform measurements with strain gauges on the shaft and simultaneous measurement of vibration noise. For analyze of your plants performance and to make improved propellers, this is required for issue our performance guarantee.

Shaft Alignment and Whirling Calculations

Idea Marine perform analyse and recommendations for shaft alignment. We use Det Norske Veritas (DNV-GL) programs.  

Our References

- 50%


Åland / Finland

Conversion of old propeller blades to fit new operation and higher ice class. Reduced vibrations to 50% . Increased efficiency 5-8%.

- $2000 / day

Supply of CP Propeller blades

United States

Model tested propeller blades, diameter 5,4m, (sspa) verified 11% improvement. Daily reduction of fuel 3200kg (cost $2000 per day). Now possible to maintain schedule with only one engine in operation.

+ 7%

CP Propeller blades 5.3m – Great Lakes Bulker

Improved performance 7-3% and better channel manouevering abillity.

Other References

San Arawa Trawler

Cape Horn
Substitution of propeller blades for ship in cape horn area. The shipowner is involved in research of sustainable fishing i argentina.


New design for a 100 year old steam ship. Trials recently exceeded all expectations.

BRP Shipping AB

Supply of propellers, investigation and model tests. mt "Fox Luna".
2,1 Knot higher max speed
30% better fuelt efficiency

HMS Carlskrona

Vibration measurement and evaluation of propulsion performance.

Contact Us

Contact details

  • Klippan 3, 414 51, Göteborg
  • ola.stephanson@ideamarine.se
  • +46 706 95 65 96

Idea Marine Ab | Klippan 3, 414 51, Göteborg | Ola.stephanson@ideamarine.se | +46 706 96 65 96