5in Cinewhoop Conversion to 3.5in Adjustable Duct

I built this so we do not have to spend thousands trying out 3 drones to see what is right for you. Now all you need is a 5 inch drone and 3.5 inch props. The whoop mounts under the motor and the skirt slips over the prop guard. This is called the "Atradies Whoop"