This year, the Y-20 went to Serbia for a three-day shipment, 22 flights, and related videos have also circulated on the Internet.
This is the footage of the C17 landing. 】
The most worrying thing is that when the plane lands, the wings and tail will "shake violently", and everyone is startled, worried that something will be "shaken off".
Is this because the fighters themselves are "not strong", or is their technological level far beyond human imagination?
This is the moment when the Y-20 takes off. 】
Transport-20 "Q-bombs".
When it comes to the material of the aircraft, everyone will think that it is very strong, because the air flow on the surface of the fuselage can cause violent disturbances during high-speed movement.
The oncoming air is like a bomb, causing damage to the aircraft all the time, and if the material is not hard enough, it is likely to be blown away during the flight.
If you want to increase the strength of the material of the aircraft, you can choose a variety of ways, such as using high-density materials, or you can choose a new composite material.
There is nothing wrong with enhancing the "anti-beating" performance of the fighter, however, when flying, everyone did not forget about the weight of this fighter.
Typically, the harder the material, the heavier its mass.
Such a large weight is not only not conducive to the performance of the fighter, but may even be a burden.
Large passenger aircraft manufacturing].
Because the heavier the aircraft, the more power is required, so the more fuel is consumed. And the higher the fuel consumption, the higher the cost of the car.
If it is an ordinary passenger aircraft, it will only have a certain impact on the ticket price at most, which is hundreds of dollars higher than the average price on the market, but for a military transport aircraft, the weight is the most important.
The weight and weight of the transport ship is high, which leads to a decrease in the efficiency of transportation.
But having said so much, what is going on, can it be compared to the vibration of the plane when it lands normally?
Yun 20] There are a lot of things involved, without reducing the performance of the aircraft itself, Yun 20 used a lot of composite materials when manufacturing, and reduced its weight to a minimum.
As for what is going on with composites, due to high technology and secrecy, we do not know for the time being, but one thing is for sure.
The strength of this material is very high, and the composite material used in the Y-20 weighs much less, so it can reach 66 tons.
However, this technology may have exceeded everyone's expectations, giving the aircraft a kind of "flexibility".
What's more, the maximum take-off weight of the Y-20 reached 220 tons, and the fall of such a big guy from the sky would definitely cause wings to vibrate.
The Y-20 is very reliable.
The fuselage of this Y-20 will never break its wings and tail without falling off.
First of all, as mentioned earlier, the Y-20 uses a large number of composite materials, which have high strength and stability, and jitter is a special property, so don't take it seriously.
The second reason is that before delivery, the relevant departments have done a lot of tests on the wings of the J-20, and each situation has to be done thousands of times, and every time it has to be done.
Wing swing test in manufacturing].
On the premise of ensuring stability and safety, the Y-20 can finally be put into production.
It can be said that every part of the Yun 20 has been rigorously tested, and their staff, under the harshest conditions, can achieve the best results, so, during transportation, there are no problems.
If you are still worried, you can take a look at the landing video of the American C-17, which is a DC-10-like aircraft with a maximum take-off weight of 263 tons and a maximum load capacity of 77 tons, which is generally very similar to the Y-20.
The C-17 is very similar to the J-20. ”
The shock of the landing of this plane can be much greater than that of the Y-20, which has never been in service in the United States for decades.
In addition, another feature of the Y-20 is its "electronic control system".
This method is essentially to convert the driver's instructions into electronic signals, which are then controlled by a series of sophisticated electronic and electronic devices.
The glory of China, Yun 20
The conventional operation mode of large aircraft requires a high degree of judgment from the pilot, no matter when it takes off or when it lands, the requirements for the pilot are very high, which is why there are such a high level of pilots.
Fly-by-wire cockpit].
However, an excellent pilot is not enough for an excellent pilot to judge, after all, a person's judgment is difficult to compare with an advanced high-tech instrument, not to mention, a large passenger aircraft, its electronic system has been integrated into the fuselage, its control of the fighter, far beyond the pilot.
If the judgment is wrong during flight control, although it will not lead to a crash, it will also affect the service life of the aircraft.
However, the current flight control system can make up for this defect very well, not only can provide a large amount of information for the pilot, but also can make an effective response to the pilot's various actions, and greatly improve the ability of the aircraft to resist danger.
In addition, the scramble fuselage of the J-20 is also a highlight, which can greatly reduce the friction of the air and increase its flight speed.
Under normal circumstances, a large passenger aircraft, such as the Y-20, will experience very terrifying air friction in the air, and its maximum limit is only 0Mach 8 only.
This is mainly because the leading edge of the airfoil is blunt, so the flow in the flow is slowed down to a relatively smooth state.
However, keep in mind that this method is not a new invention and was already used by Airbus in its large airliners in the 1970s.
And now, China has applied it to the Y-20, which is equivalent to catching up with the international advanced scientific and technological level.
Of course, the Y-20 also has a lot of excellent technology, so don't be fooled by this look like an ordinary civil airliner, but if you look closely, you can find its advantages.