Variable pich prop - Testing new blades

I'm testing new blades for my Variable Pitch Prop project. This version (3-baldes) is for World Models Tucano 60. Effective diameter of the prop is 13.5 inch, pitch changes from positive 10 inch (pull) to negative 6 inch (break). Power for the prop comes from 1kW brushless motor. On for this test I did not setup governor for constant speed, so you can hear the speed is dropping under load of higher blade pitch. For fling governor will keep the prop speed at the same preset rpm.

[@jayd1209]

Hi Rysiu,
Interesting work.
I am also developing this kind of Variable Pith Propeller but for 2 Blades only and for 3W-28i Engine. Any idea how much the Price for the Variable Pitch Propeller System [VPPS] that you are using in your experiment?
Can I buy it from you?.. I can email you my Specification if you like..
Cheers, Jay