Azimuth thruster CMA150CR

externalfor boatstwin counter-rotating propellers

When there is little space or a low vessel draught, Current Motion can deliver thrusters with counter rotating propellers (also called contra rotating propellers). Optimizing performance The power will be divided over the two propellers and lower the blade load in a way that it creates the possibility to use smaller propeller diameters with a good efficiency. The efficiency gain of counter rotating propellers are about 15% in relation to a single propeller. Due to the lower blade load the emitted noise is lower than a single propeller. Widely applied Counter-rotating propellers are often used in cruise vessels or ferries where noise levels need to be as low as possible due to the passengers on board. Also, when there is a certain demand for an as low as possible underwater noise, counter rotating propellers are the best option. Product features Increased thrust and efficiency Counter-rotating propellers generate higher thrust levels than single-propeller designs, leading to improved propulsion efficiency and better fuel economy for the same power input. Reduced propeller-induced vibrations: Counter-rotating propellers reduce vibrations and noise levels by counteracting rotational forces. This results in smoother and more comfortable voyages. Increased comfort Counter-rotating propeller configuration reduces blade load and noise levels in the propulsion system, making it ideal for vessels with low noise level regulations and high comfort requirements.