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Chapter 415 Let the facts speak

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    The brilliance, smoothness and slightly cool metal feel, like a girl dusting off dust, made Wu Changcheng feel a little unreal.

    No rivets!

    If he hadn¡¯t seen it with his own eyes and touched it with his own hands, Wu Changcheng would not have believed that all this was true. You must know that he can serve as the deputy director of the Food Aircraft Test Center, and his attainments in aviation are no worse than those of the old professors in front of him.

    But precisely because of this, the impact of the improved Y-5 in front of him was as big as the explosion of an atomic bomb.

    You must know that as long as it is an airplane, it is basically inseparable from the riveting process. Because of this, the face on an ordinary airplane is like a woman¡¯s face. From a distance, it looks like a flower, which seems okay; when you look closer, the face looks like a flower.  The pimples and freckles are clearly visible, which is a bit disappointing.

    The same goes for airplanes. When you walk in and take a look, you will see that rows of rivets are densely packed in every corner of the airplane. They are the most commonly used parts in the field of aircraft manufacturing.

    However, the improved Y-5 in front of him had the entire fuselage integrated into one piece without any trace of riveting. Wu Changcheng was very surprised as to how he did it.

    Looking at Wu Changcheng's confused eyes, Ding Laixiang's expression became even weirder. Just as he was about to speak, he saw a person coming out from the other side of the fuselage. Ding Laixiang waved quickly: "Xiao Lin, come here and tell Director Wu about your situation."  airplane."

    Lin Guanghua came with the plane and did not come with the expert group composed of Ding Laixiang and others. After all, as the general person in charge of the improved Y-5 project, Lin Guanghua cared more about the condition of the plane, so even though the road was slower and tiring,  I'd better follow the car in person.

    When he arrived at the aircraft test center, he did not go to Ding Laixiang. Instead, he checked the basic condition of the aircraft with several technicians from Tengfei Manufacturing Corporation. After finishing the work here, it was not too late to go to Ding Laixiang.

    But he didn't expect that Ding Laixiang and others would come over just halfway through the process. So seeing Ding Laixiang waving, Lin Guanghua said a few words to the assistants around him and walked over quickly. After introducing each other to Wu Changcheng and several old professors,  They exchanged a few words with each other, and then reported to Wu Changcheng: "The people in the center may not know the performance of our aircraft just now. They found that there is no annular load-bearing beam structure inside our fuselage. They were afraid that the crane would damage the aircraft and did not dare to operate it, so  ¡­¡±

    Before Lin Guanghua finished speaking, Wu Changcheng was already surprised. His eyes were as big as bells. Then his voice changed and he interrupted Lin Guanghua: "What did you say? The main structure of your aircraft does not have annular load-bearing beams?"

    As soon as he finished speaking, Wu Changcheng turned to look at Ding Laixiang and others. He found that the faces of these old professors were gloomy and gloomy. He could not figure out the reason, so he did not ask, but climbed in through the open cockpit door.  board the plane.

    Since it is a verification machine used for static testing, this improved Y-5 has no decorations and is just an empty shelf like a whiteboard. This can better test the durability of the fuselage, the fatigue of each part, and whether the materials are appropriate.  As well as basic conditions such as the force conditions of the aircraft under heavy overload, based on these improvements, the aircraft will perform more smoothly and be safer.

    Of course, in addition to the verification machine for static testing, there are also verification machines for hydraulic testing and avionics testing, as well as full-system verification machines for test flights.

    Three verification machines form the most basic structure for experimental verification.

    The other two experimental verification aircraft have been assembled at the Xiping Aircraft Manufacturing Plant under the Ascendas Aviation Manufacturing Corporation, but they have not been shipped.

    The reason is very simple. The technical expert group composed of Ding Laixiang and others believes that Ascendas Aviation Manufacturing Corporation's improved Y-5 has serious safety problems as a whole, and recommends Ascendas Aviation Manufacturing Corporation to control new technologies to less than 30% of the total.  This avoids uncertain risks caused by out-of-control performance.

    Translated into adult language, Tengfei Aviation Manufacturing Corporation has taken too big a step, beyond the thinking and cognition of old experts like them. It is better to come back and follow the old luck 5 and take your time, don't make a one-character horse right away.  What's more, the elders' hearts are not very good.

    Yes, Ding Laixiang and others accepted the invitation of the Aviation Manufacturing Corporation, and after reporting to the ministries and commissions, they formed an expert group and went to the Xiping factory to see the latest improved Y-5 prototype. Their shocking appearance was even more shocking than that of Wu Great Wall.  and.

    Not to mention anything else, just the fact that all the ring-shaped load-bearing beams of the main structure were eliminated, almost made the hearts of the elders almost stop.

    What is an annular load-bearing beam?

    If an airplane is compared to a house, it is the beams and load-bearing walls; if an airplane is compared to a human body, it is the skeleton of the airplane.

    No matter how the house is built, whether the person is ugly or beautiful, has anyone heard of a house without beams or load-bearing walls, or a human body without bones?

      That house can¡¯t be crossed yet, and people can¡¯t be paralyzed.

    The result was such an incredible thing, happening right in front of our eyes. One can imagine the attitude of several veteran experts. After such a plane takes to the sky, a gust of wind will not blow it away.

    So we made a very serious suggestion to Ascendas Aviation Manufacturing Corporation to reduce the application of new technologies and follow the old model architecture.

    However, when this opinion was sent to Zhuang Jianye, he, the Ascendas Aviation Manufacturing Corporation, was not doing well, but Lin Guanghua, the general manager of the project, quit the job.

    That was his hard work. How could he overthrow the old? So he found his mentor and argued about various theories and techniques for three or four days. In the end, the wealthy Zhuang Jianye came up with 300,000 No. 1 verification machines.  After being dragged to the Grain Flight Test Center to weigh in, the aviation technology debate between the new and old generations came to an end.

    ?Speak with facts!

    This is the unanimous sentiment of Lin Guanghua and several old professors and new and old generations of technicians. Because of this, several old professors looked strange when asked by Wu Changcheng. There was nothing they could do, and the old professors were very nervous.

    So Lin Guanghua had to follow the car in person and check it carefully because he was even more nervous.

    The only person who was not nervous in the whole scene was probably Wu Changcheng, because he was already filled with shock. He saw that from the cockpit to the end of the final cargo warehouse, there was a length of more than seven meters, and it was completely integrated, not to mention the ring load-bearing.  There are very few beams and even common rivets.

    ¡°That is to say, Wu Changcheng looked carefully, otherwise those deeply hidden rivet structures would be easily overlooked.

    After looking at it so carefully, Wu Changcheng finally understood why the officer just didn't dare to hoist it. Even if he changed it, he would still have a big drum in his heart. There was no way. There had been an accident in the test center where the crane broke in the middle after lifting the aircraft.  The cause was later found to be a serious lack of body strength.

    "Nowadays, the improved Y-5 of Ascendas Aviation Manufacturing Corporation has no annular load-bearing beam and no riveting process. Not only does it lack structural strength, it is simply boneless fat. If it really wants to be hoisted, it will snap and break. Who is responsible for this?

    Realizing this, Wu Changcheng was ready to push back the test, but he couldn't speak directly. After all, he had paid for it, so he just wanted to pretend to make an excuse, so he patted the bulkhead and looked up.  The metal structure of the integrated internal bulkhead asked Lin Guanghua next to him: "What material did you use for such a complex component?"

    ¡°Aluminum-lithium alloy is used both inside and outside.¡±

    "Inside and outside? Aluminum-lithium alloy?" Upon hearing this, Wu Tiancheng's eyes narrowed unnaturally: "What about the middle?"

    "Aramid paper!"

    Wu Changcheng, who originally wanted to drag and test the materials, couldn't help but gasped after hearing this: "Aluminum-lithium alloy, aramid paperthe composite honeycomb structure material on the French Mirage 2000 fighter jet?"

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