5-blade propellers

The fewer blades a propeller has, the more efficient it is. Unfortunately, fewer blades also means more vibration. Three-bladed propellers are the most common for pleasure boating because they offer the best compromise between smooth performance, speed and consumption. Propellers with 4 or 5 blades allow better acceleration and significantly reduce vibrations. On the other hand, it is to the detriment of maximum speed and fuel consumption. Each propeller blade...