private static void demo(Helicopter helicopter)
{
//Takeoff command - FLY!
helicopter.TakeOff();
//Throttle command - LIFT
helicopter.ChangeThrottle(500);
//Move forward - watch out im moving forward
helicopter.MoveForward();
//Move backward - backing up!
helicopter.MoveBackward(2000);
//Turn Left - Think about looking out of the helicopter window
//helicopter.TurnLeft();
//Turn right - Think about looking out of the helicopter window
//helicopter.TurnRight();
//Landing command
helicopter.Land();
}