Drone propulsion systems are the mechanisms that enable drones to fly. They typically consist of electric motors, propellers, and batteries. The motors convert electrical energy from the batteries into mechanical energy, which spins the propellers. This creates lift, allowing the drone to ascend, descend, and maneuver in the air. There are various types of propulsion systems, including multirotor systems, which use multiple propellers for stability and control, and fixed-wing systems, which rely on wings for lift and are more efficient for long distances. Each system has its advantages, depending on the intended use of the drone.