The goal of this project is to develop a robotic prototype capable of swimming at high speeds, which can be used for rescue and/or ocean research. We would separate its specific characteristics by attempting to use to a large extent the shape of the movement of the sailfish, which has as a characteristic the shape of a dart when moving at high-speed thanks also to its lack of scales that make its coefficient of friction with water is minimal. Located in the belly of the robotic prototype, which also has degrees of freedom in its neck and fins, this will allow it to go up and down without using human force, adding comfort and stability when performing deep-water rescue operations.