3-blade Variable pitch propeller hub with electric motor.
This VPP hub can be used for pusher-tractor aircraft, airboat, hovercraft etc. Both rotation direction. Can be used for reverse. Max engine power 140 HP. Pitch change 28 (up to 50 other version) degrees. Blades diameter 60-80″ Set of blades from 900$. KOOLprop and Kievprop blades can be used. In stock. Info, pictures videos Variable pitch propeller – electric controlled. (airtrikes.net)