Why can a remote-controlled plane fly and ask God for help?

Take a helicopter as an example, the lift is provided by the rotor, that is, the relationship between the reaction force and the acting force (that is, if one object exerts a force on another object, the other object will exert the same force on the object exerting the force). If it is a fixed-wing aircraft, it depends on the pressure difference. I don't know if you have noticed the shape of the plane (the wing and fuselage are separate, but they are all the same). If you separate from the middle, you always bend up and flat down. This is because it is necessary to increase the speed of the upper airflow. Imagine that an airflow takes a flat road and an airflow takes an arch, but at the same time and different distances, it has to reach the same destination. It must be a flat road, that is, the airflow speed below is slow, and then according to the principle that the higher the flow speed, the smaller the pressure above, the greater the pressure below, and then the plane gets an upward buoyancy by the pressure difference above, and then flies.

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