Can anyone tell what the tab above the prop is and what it for and why some motors have them and some don't. Mine does not but looks like it did at one time. I just bought the boat and noticed it. Thanks
Some are flat. Depends on the prop. I run a flat one a Tempest Plus. Blades will not clear one that hangs down. They serve as a sacrificial anode. If your boat has nothing there then it probably fell off.