Poseidon has an unique propeller  in her portfolio!  A cavitation free bowtruster propeller.   This propeller will create no yelling annoying noises! And so your tunnel thruster will be silent!

The Poseidon Silent Thruster Propeller (PSTP) is manufactured either in non-metallic, aluminium, bronze or stainless steel. Any diameter is possible. The PSTP can also made suitable for any existing thruster. The PSTP sure will give no worse trust performance then ordinary propellers. Even better! As they do not cavitate. We have advanced software to make required proper calculations for sizing and performance. Especially for yachts and DP vessels these PSTP are heavens!

Poseidon did some tank test with different styled propellers. The tests were conducted with three propellers and one PSTP. The used propellers are all representative in the market and all suited for the same power.

The test characteristics are showed in the graphics. You can watch a documentry of these test with some photo’s over here