Rasmussen Maritime Design

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Model of fishing trawler at SINTEF Ocean​

10.0 knots (30m) - - - 15.0 knots (68m) - - - Froude number 0.30

10.7 knots (30m) - - - 16.0 knots (68m) - - - Froude number 0.32

11.3 knots (30m) - - - 17.0 knots (68m) - - - Froude number 0.34

12.0 knots (30m) - - - 18.0 knots (68m) - - - Froude number 0.36

Resistance full scale 68 meter – Flowbow only ​

(i.e. no Flowstern modification)

Reduction in fuel/energy consumption per distance versus velocity.

The graphs show considerable reduction in fuel/energy consumption per distance, compared to traditional hull design, as velocity increases.
This also allow vessels to be operated at considerable higher cruising speed with good fuel economy.