You have not asked a question. Do you mean why does it only run 1 Min? Well in the air it will run longer than it does on the ground because the plane is moving and there is less resistance then. Folks worry about flight times with electric but I never do because I use a 3 step solution to this problem: 1 Land Plane. 2 switch batteries 3 take off. Problem solved and you got a good practice at landing.