I just came across an interesting video. A friend of mine just purchased a mini-copter that can be flown around in the house. That’s why this video caught my attention. In this video there is a “Quad-Copter”. In other words, it has four rotor blades which allows it to be super stable and also have plenty of excess power to go air-borne very fast. Watch the video and you will see what I am talking about.