Douglas
Member
I am replacing the prop on my Carbon Cub S+, but both sides of the prop look nearly the same to me. I'm using the PKZ1019, P-51 BL, 9x6 prop. Which side faces in toward the engine? The only difference that I see is that one side is just a hole in the center, and the other side has an indented area around the hole for the prop shaft. My assumption is that it is indented side that face OUT and away from the engine and the indented area is there to sink in the nut. But I don't know.