Description: Stern drive is a propulsion system located at the rear of a boat, designed to provide the necessary force to move the vessel through the water. This type of propulsion typically involves a combination of an inboard engine and an outboard drive unit, which includes propellers that are installed at the stern to optimize maneuverability and efficiency of the boat. The location of propulsion at the stern allows for better control in direction and speed, facilitating maneuvers in ports and restricted waters. Additionally, stern drive systems can contribute to the stability of the vessel, as the weight and distribution of force are better balanced in this configuration. This system is essential in various types of vessels, from recreational boats to larger commercial vessels, and its design can vary significantly depending on the type of boat and its specific purpose. Stern drive not only improves movement efficiency but also influences the overall performance of the vessel, making it a critical component in modern marine engineering.