Is it possible for airplanes to take off with this method?

What makes you think “It should not be possible” at first glance, but as you question, “I wonder!” an idea to say.

We also issue we asked an expert and Engineer Fatih İnal explained to us whether this idea is actually possible or not, in a language that everyone can understand.

If we put a conveyor belt (conveyor belt / treadmill) under a passenger plane and give full throttle to the engines, can we get this plane to take off?

To understand the answer to this We need to touch on some basic concepts.

There are 4 fundamental forces acting on an airplane: weight, thrust, drag, weight.

• Weight: It is the force caused by Earth’s gravity, always perpendicular to the ground and pulling the plane down.
• Thrust: It is the thrust that the aircraft gains by accelerating the air it receives from the front thanks to its engines and transferring it to the rear. As the engine power increases, this power also increases.
• Drag: It is the wind resistance that the aircraft encounters during its movement. As the plane accelerates, drag increases. As the plane accelerates, the speed of the air passing around its wings will increase. To better understand this situation, you can imagine that the plane is stationary on the ground and the wind on the plane is getting faster and faster. We can give an example of aircraft hovering in the air when the ground speed is 0 (Ground speed: The speed of the projection of any aircraft in flight on the ground).
• Lift: The source of lift is the velocity and direction of flow of air around the aircraft’s wings. This is why the wind speed and direction to which the aircraft is exposed is very important for takeoff and landing. Because they have direct effects on buoyancy.

In other words, we can summarize the take-off of an airplane at the beginning of a runway as follows:

• Due to its weight, the aircraft always points towards the ground. is pulled by gravity.
• With the engines powered up, the aircraft accelerates the air in front of it and transfers it to the rear and it starts accelerating forward.
• The thrust force produced by the engines, Drag force is not a problem at this stage, as it is much higher than the drag force that will occur due to air resistance.
• As the plane accelerates, the amount of air flowing by its wings per unit time also increases. This situation Increases lift force.
• Lift force increases as soon as he begins to bear the weight the wheels of the plane are cut off from the ground and the plane starts to take off.

Now that we have learned the basics roughly, we can understand more easily whether the plane can take off with the idea here.

The aircraft will try to accelerate as it generates thrust, but because of the ground moving in the opposite direction at the same speed as its wheels will never progress.

All the power it will produce, the ground beneath it in the opposite direction will result in acceleration. As the plane cannot accelerate, a plane whose wings pass around it airflow will not occur. Therefore, a lifting force that can outweigh the weight is not possible in this case.

in the same scenario If we consider that we increase the wind speed coming from the plane too much, The wings can produce the necessary lift to take off, but it should not be forgotten that the drag force will increase considerably in this case.

In this case, whether the aircraft will maintain its stability or not. aircraft should be investigated. Even if we could make this possible, it wouldn’t make much sense as it would be an unnecessary effort.