The power propulsion system adopts vector control technology, speed closed，loop control, composed of main propeller, controller, servo system and propeller to achieve low speed high mobility performance and high speed good motion efficiency.

Change the angle between the main propeller and the hull through the internal steering gear to realize 360 ° rotation of the longitudinal section (i.e. full vector propulsion), so as to control the movement direction of the submersible. The vector propulsion device at the tail is shown in the figure. In this way, the hydrodynamic noise and resistance caused by the use of traditional rudder are reduced, and the maneuverability and flexibility of the system are improved.

The full vector propulsion system has been successfully applied in Haixun 1, with excellent performance