Thanks to all for the response.
I appreciate the great information on the forums.
The engine is a Lycoming 320/160 HP
What I have read about the Aymar-Demuth Prop is that if properly cared for they perform well. Too bad the company went out of business!
Last edited by FT3 : 05-21-2022 at 10:47 PM.
Reason: Incomplete response on my part.