The plane weighs several tons, why can it fly into the sky?

The cross-section of the wing of an aircraft is generally rounded and blunt at the front and sharp at the rear, with an arched upper surface and a flat lower surface. When equal mass air passes through both the upper and lower surfaces of the wing, different flow velocities are formed above and below the wing. The velocity of air passing through the upper surface of the wing is high and the pressure is small; When passing through the lower surface, the flow velocity is small and the pressure is strong, so the aircraft will have an upward resultant force, that is, the upward lift, due to the existence of lift, so that the aircraft can leave the ground and fly in the air.

The faster the aircraft flies and the larger the wing area, the greater the lift generated.

The direction of gravity is the opposite of lift, it is a downward force caused by the gravitational pull of the earth, and the magnitude of gravity is affected by the weight of the aircraft itself and the amount of fuel it carries. The pulling force causes the aircraft to fly forward in the air, and the power of the engine determines the amount of pulling force. In general, the greater the engine output, the greater the thrust generated and the faster the aircraft can fly.

When the aircraft is in the air, it is hindered by atmospheric molecules in the air, and this obstacle forms a drag force that is opposite to the direction of the pulling force, limiting the flight speed of the aircraft.

1. Aircraft flight principle:

1. The difference in pressure between the air flow produces lift: the ascent of the aircraft is based on Bernoulli's principle, that is, the greater the flow velocity of the fluid (including liquid and air), the smaller the pressure; The smaller the flow velocity, the greater the pressure. When the aircraft flies, the streamline distribution of the air around the wing is different according to the shape of the cross-section of the wing, and the upper and lower streamlines are dense and the flow velocity is large, and the streamlines below are sparse and the flow velocity is small.

From Bernoulli's equation, the pressure above the wing is small, and the pressure below is strong. This creates a lift force in the direction acting on the wing.

2. The shape of the wing of the aircraft can make the flow velocity under the wing lower than the flow rate above, resulting in the pressure difference between the upper and lower wings (that is, the pressure below is stronger than the pressure above), so there is a lift, and this pressure difference (or the magnitude of the lift) is related to the forward speed of the aircraft.

3. When the speed of the aircraft is greater, the pressure difference, that is, the lift, will also be greater. Therefore, the plane must take off at a high speed so that the plane can take to the sky. When the plane needs to descend, as long as it reduces the speed of its forward, its lift will naturally become smaller, less than the weight of the aircraft, and it will descend and land.

An aircraft powerplant is a device used to generate pull (propeller aircraft) or thrust (jet aircraft) to move an aircraft forward. The power plant with thrust vectoring can also be used for maneuvering flights. Most modern military aircraft are jets.

The power plant of jet aircraft is mainly divided into two categories: turbojet engines and turbofan engines.

Because the design in this regard is also very advanced, and it can also play a certain buoyancy in this process, even if it is heavier in this case, it can still take off.

Mainly because the plane has some stronger power, even if it is very heavy, it can still be supported, it can resist gravity, so it can fly in the sky.

Because the speed of the aircraft is very high, and the wings are also under the ailerons, a certain pressure difference will also be formed, so the aircraft will take off.

Mainly because of the configuration inside the plane and the fact that the plane was originally meant to fly into the sky, even if it was particularly heavy, it could also be made to fly into the sky according to some special principles.

The main reason is that the engine power of the aircraft is very powerful, and the aerodynamic shape of the aircraft can push the aircraft into the sky.

The reason why the aircraft can go to the sky is because the design and development of the aircraft uses the structure of the bird's wings, as well as enough kinetic energy to allow it to take to the sky.

Because the aircraft has a strong power plant, and the material properties of the aircraft are special, it has a great impulse, and the buoyancy in the sky is large, so the aircraft can fly into the sky.

Because the plane has some power and can fight some gravity, and there is some buoyancy in the air, so that it can fly into the sky.

Although the plane is particularly heavy, the power of the plane is also full, so it can fly smoothly into the sky.

At this stage, the plane has already entered everyone's life, everyone can take the plane anytime and anywhere, the speed of the plane is the current stage of rapid transportation, many people will choose the plane as a means of transportation in the case of travel, and even for many people who pursue the perfect speed, the plane must be the preferred special tool for their travel. Although the number of seats on the plane is not as good as that of the high-speed train, the number of seats on his plane is not less, after all, it has to fly in the sky.

Many people feel very unsafe because the plane is a means of transportation for carrying out themed activities in high places, after all, he has to get rid of the strong gravitational pull of the earth and his own net weight and carry so many passengers, in case of a little accident, it is not a joke. The net weight of a cargo transport aircraft is several hundred tons, and why can an aircraft with a net weight of several hundred tons fly into the sky so easily? Many people will wonder what is the basic principle of airplane flight?

Much of the inspiration for the construction of the aircraft is due to the bird's wings, which is why the airplane's wings are designed to be streamlined that can take off and land with ease today, also because the bird's wings are streamlined. However, in addition to the wings of the aircraft, the location of the heart of the aircraft, which is the key to all aircraft, also has a particularly important and incomparable effect.

This kind of power plant that can give strong driving force ensures that he can get the driving force from the beginning to the end of the flight, not only the power plant of the aircraft, but also the power plant of many mechanical equipment is one of the life of the equipment, after all, they have no way to operate without the power plant.

For the wing of the aircraft, its effect is to make the whole fuselage of the aircraft with a net weight of several hundred tons can take off quickly and be supported by the standard air pressure in the air, and then rely on the power unit to move forward, so the energy of the wing is also very critical. When the aircraft is at a high altitude, because the air on the wing will be especially faster than the air on the bottom, the gas pressure is lower than that on the wing, so that it can be dragged and not easy to fall.

In fact, the safety factor of the aircraft is very high, and in the time when the aircraft is developed and invested in cargo transportation, although its history is not long, its development trend is very fast, and there is no need to worry about the safety factor. After all, compared with the accident caused by the vehicle, the aircraft has long been regarded as a means of transportation with a low probability of accidents.

Because the speed of the aircraft is fast, it can squeeze the air and produce upward thrust, so it can fly into the sky.

The pressure difference in the air flow creates lift, and the shape of the aircraft's wings can be lower than the flow velocity above, allowing the aircraft to fly.

The airplane has an upward resultant force, and the speed is particularly large, and the pressure is relatively small, so it can fly into the sky.

Because the design of the aircraft is streamlined, the aircraft still has a certain kinetic energy, and its principle is the same as that of a kite, and the air can also bear some things.