Okay, this will seem stupid to many, so be gentle, please. I know that all helicopters, full scale and most small scale use a 2 bladed rotor. But, some planes use a 3 bladed propeller(s) I am not an aeronautical engineer, but an electrical engineer, which doesn't help with this question! Let's assume we have a 3 bladed rotor, with the same length, width and pitch as comes with the Phantoms. Let's also assume the drone has been modified to work with 3 bladed rotors. Con: I can see that there would be increased air resistance, (referring to rotation) higher weight and a greater load on the electric motors. Pro: Greater lift capacity per revolution. Hopefully meaning greater speed for the same battery depletion, if wind resistance isn't a big factor, which I don't think will be the case. It hasn't been done to RC multi-rotor drones, to my knowledge. Why not? Your thoughts, please.