AX-O
Well Known Member
I was asked on a different post regarding a picture of a prop in flight.
When Dilemma was configured with a fixed pitch prop, I was doing a lot of testing for Catto propellers. Craig was experimenting with different blade shapes and fences. in the process of that we were tufting the airflow real time and recording it with a video camera mounted on a modified crush plate. We also used a mixture of engine oil and baby powder (that made a mess). pics below.
When Dilemma was configured with a fixed pitch prop, I was doing a lot of testing for Catto propellers. Craig was experimenting with different blade shapes and fences. in the process of that we were tufting the airflow real time and recording it with a video camera mounted on a modified crush plate. We also used a mixture of engine oil and baby powder (that made a mess). pics below.