Kristoffon
Well-Known Member
Today I placed an order for the prop for my plane (yay!) and the manufacturer was very concerned about the rotation direction and I had to explain it to him several times until he was satisfied there was no misunderstanding between us.
That's a wooden prop in case it makes any difference.
I've seen prop design guidelines and programs and they only concern themselves with the airfoil shape, never saw one ask for the direction. Structurally it does not seem that one side would be significantly weaker that it had to be mounted a particular way, or even that it would make a difference if it was. The airfoil would meet the air the same way reversed and flipped over.
So I'm left wondering, why?
That's a wooden prop in case it makes any difference.
I've seen prop design guidelines and programs and they only concern themselves with the airfoil shape, never saw one ask for the direction. Structurally it does not seem that one side would be significantly weaker that it had to be mounted a particular way, or even that it would make a difference if it was. The airfoil would meet the air the same way reversed and flipped over.
So I'm left wondering, why?
