Try for yourself and all will understand. The Office on this helicopter following: X and Z are responsible for enabling rotation and rotate in different directions. I.e. If you want to fly up the press Z and the blades begin to rotate so that the helicopter was able to climb. And vice versa if you want to plant a helicopter blade, you need to rotate different way-to do this, press x. Arrow forward, backward, right and left, the need to control the helicopter. These arrows you nakrenâete helicopter in the desired direction. The author is unknown.