Sea trial DF300BPX 3x15x22,5 duo-prop on Sting 730 Fast Track 

Our boat is 24" - Sting 730 Fast Track. Norwegian design, manufactured in Poland 2020.
This is to show the characteristics after repowering from Suzuki DF200APX with a 3x16x20 SS Suzuki original props to a Suzuki DF300BPX 3x15x22,5 SS duo-prop.
The most significant change is that the boat sails 1,000 rpm lower in cruising speed with the same fuel consumption and with less noise. Cruising speed is 25-32 knots and the boat sails 10 knots faster in wot (44 knots).