So what's the big deal with the blade?
Just like your car needs wheels, your boat needs its propeller(s). The type of tires make a big impact on how your car performs, as does your propeller and the number of blades for your boat. The propeller is the oval or leaf-like metal area attached the the center/hub. The number of blades, the blade design and many interconnected factors influence the performance of your propeller and boat.