Over/Thru-Hub Exhaust
Over/Thru-hub exhaust propellers are a combination of thru-hub and over-hub exhaust propellers. This allows some exhaust to escape at lower RPMs, providing a controlled amount of exhaust flooding. These types of propellers will allow the propeller to be slightly easier to turn during initial acceleration, allowing for a better hole shot on some engine/boat combinations.
![](https://www.miwheel.com/wp-content/uploads/2022/03/OVERTHRU_140_125_60.jpg)