What does the propeller do in an outboard motor?

The propeller in an outboard motor plays a crucial role by converting the torque produced by the engine into thrust. When the engine generates power, it turns the drive shaft, which in turn spins the propeller blades. These blades create a difference in water pressure; as they push against the water, they generate forward motion, propelling the boat. This thrust is essential for the movement of the vessel through water. Understanding the function of the propeller is key as it directly impacts the boat's speed, acceleration, and overall performance. The efficiency of this conversion from torque to thrust is vital for optimizing the boat's capabilities on the water.