Dynamic Prop Balancing

TLDR

• Completed a dynamic prop balancing

Details

My friend Brain did a dynamic prop balancing on my engine/prop today.

We started the day by setting up the sensors on the propeller.

Accelerometer goes on the opposite side of the airmaster flange brush, optic sensor is taped on the engined

Then I started the engine to get a baseline. Once the oil temp was hot enough I ran up to 4500 RPM. The dynamic prop balance machine picked up the vibration and suggested some crazy amount of weight to be added to the propeller flange. We did that, then ran the engine at 4500 RPM again. The machine suggested some weight adjustments which we did. Then we did it a final time. After 3 runs, we got the prop to run at 0.04 in/s which was a very good number.

Then we called it a win and updated the airplane logbook with the tuning details.

Washers added to the flange