If you look at some of his

If you look at some of his other videos, there is one test flight where by waypoints they launch it and it follows a raod at fairly high altitude. What impresses me is the flight time he is able to get on his batteries knowing he is spinng 6 electric motors. Their 3Km test flight used a model with 4 motors.

MikroKopter”>http://vimeo.com/6786833″>MikroKopter – Mission:”Rheinbach”