How did the plane fly? Please, thank you

It was dragged up by gas. It's like a kite flying up. The kite is pulled by people, and the plane is pulled by itself.

How does an airplane fly Any aircraft must generate a lift force greater than its own gravity in order to fly, which is the basic principle of aircraft flight. I believe everyone has played with kites or bamboo dragonflies when they were children, these two small gadgets are very simple in structure, but they contain profound principles of flight. The wing of the airplane comprises two kinds of fixed-wing and rotary-wing, and the principle of the kite is somewhat similar to the glider, all rely on the upward lift force that is blown by the on-demand air flow, but there is a certain difference with the fixed-wing aircraft; However, gyroplanes and bamboo dragonflies have the same effect, both rely on the rotation of the rotor to produce upward lift.

How does the wing generate lift? Let's start with a little experiment: hold one end of a piece of white paper, the other end of the white paper will naturally hang down due to gravity, and now we will take the white paper to our mouth and blow in a horizontal direction to see what happens.

Ha, instead of being blown open, the hanging end of the paper floats up, what is the reason for this? The basic principle of fluid mechanics tells us that the atmospheric pressure of the slow flow is greater, and the atmospheric pressure of the fast flow is smaller, and the air on the white paper is blown and flows faster, and the pressure is smaller than the air that does not move under the white paper, so the white paper is held up. For a fixed-wing aircraft, when it flies in the air at a certain speed, according to the principle of relative motion, the movement of the wing relative to the air can be seen as the wing is not moving, while the air flow flows through the wing at a certain velocity.

Because the wing is generally asymmetrical, the upper surface is more convex, and the lower surface is relatively flat, which makes the air be divided into upper and lower strands when flowing through the wing, the air flowing through the upper surface is fast and the pressure is small, and the air flowing through the lower surface is slow and the pressure is large, which produces a pressure difference between the upper and lower wings, and the upward pressure is the lift of the aircraft, which drags the aircraft in the air.

Here's why airplanes can fly:

When the air of equal mass passes through the upper surface and the lower surface of the wing at the same time, different flow velocities will be formed above and below the wing, the flow velocity is large and the pressure is small when the air passes through the upper surface of the wing, and the flow velocity is small and the pressure is strong when passing through the lower surface, so that the aircraft will have an upward resultant force at this time, that is, the upward lift, due to the existence of lift, the aircraft can leave the ground and fly in the air.

Structural features of the aircraft

The fuselage is mainly used to carry personnel, cargo, fuel, ** and on-board equipment, and through it, the wings, tail, landing gear and other components are connected into a whole. In light aircraft, fighter planes, and attack aircraft, the engine is often installed in the fuselage.

The wing is the main component used to generate lift on the aircraft, which is generally divided into two wing surfaces, the front and rear green of the wing are basically straight called the straight wing, the leading edge and the trailing edge of the wing are swept backward called the swept wing, and the wing plane shape is triangular called the delta wing, the former one is suitable for low-speed aircraft, and the latter two are suitable for high-speed aircraft.

The vertical tail is vertically installed at the tail of the fuselage, and its main function is to maintain the directional balance and control of the aircraft.

I don't know if you have ever been on a plane? Every time I see a plane whizzing in the sky, I am always a little worried, the average civil airliner can carry 100 to 300 people, what if the plane can't bear so many people, what if it falls?

The simplest, the recoil power of the engine, the wing structure, the profile is round and straight, the airflow passes through the wing, the wing is round and the bottom is straight, the airflow through the wing surface will produce a pressure difference, the pressure under the wing is strong, the pressure above is small, and the upward lift is generated.

In this way, the engine makes an inference, the wing generates a downward upward force, and the plane flies.