Chapter 1634: Trustworthy

On August 10, 1998, when Dong Wanrui led his soldiers through arduous battles, and finally blocked the last breach of the Jiujiang section of the Yangtze River, all of them slammed their horses, and with the support of the reinforcements, they confidently welcomed the next arrival. At the time of Hongfeng, Dr. Tan, whom he was secretly grateful for, was standing at the Pudong Airport, which was completed a year earlier than the other time and space, looking at a large silver plane.
C929, China's first large aircraft capable of performing intercontinental flight missions, will fly for the first time today!
From the official establishment of the project in 1993 to today, the C929 has been developed for 5 years and 5 months. If you compare it horizontally with advanced international companies, this is not a very fast speed. For example, it took only 3 years and 7 for Boeing to develop the 767 aircraft The first flight was achieved within a month, and it took only 3 years and 9 months for Airbus to develop the same level of A310 to achieve the same progress. But for China, this is a historic moment!
The C919, which has already been put into operation on the market, is affectionately called "our own big plane" by Huaxia people, but in fact, it is essentially a narrow-body mid-to-short-haul passenger plane, which belongs to the "small" of passenger planes, while C929 It is not the same. This is a double-aisle wide-body passenger aircraft with a take-off weight of more than 200 tons and capable of carrying close to 300 passengers and carrying out a range of 12,000 kilometers. It is a real, out-and-out large aircraft!
The ability to manufacture such an aircraft indicates that China's aviation industry and the overall industrial level have entered the world's first camp. At the same time, its first flight also represents the dream of several generations of China's aviation industry has finally come true!
Tan Zhenhua knows that on the Internet that has gradually become noisy, many "Hate the National Party" are spraying that the aircraft is a "Wanguo brand" assembled goods, and some people even declare in a strange way that the "assembled goods" are not reliable at all. For the sake of my own life, when I fly in the future, I will definitely not buy tickets for flights with this type of aircraft.
But he didn't want to and didn't have time to pay attention to these noisy noises.
Because he is so busy that he is too busy to waste a little time and energy.
It is also because he knows the difficulty and arduousness of operating such a complex large-scale project, and has witnessed the labor and sweat of countless outstanding engineers and technicians and manufacturing workers for the birth of this large aircraft.
It's always easy to talk about the gang and keyboard man. After all, they just need to fill their minds with water and spray them out. These people, in real life, may not even be able to screw a screw.
Two Rolls-Royce RB211-524HT engines with a thrust of 2700KN (approximately 27.5 tons) propelled the C929 with a length of more than 55 meters and a wingspan of more than 48 meters into the blue sky. Wang Qingping, whose eyes were already wrinkled, looked up at it. , Ma Fengshan, with white hair, looked up at it. Because he had been ill and had trouble walking, Lu Guangjie, who had to sit in a wheelchair, also looked up at it. They were silent.
A huge plane passed over these people, blocking the summer sun for a moment. Tan Zhenhua turned around and looked at the companions around him, only to find that every one of them had a crystal in their eyes. Tears flickered.
Lu Guangjie suddenly turned to look at Tan Zhenhua, his face full of solemnity: "Zhenhua, you are a trustworthy person. You did what you promised me back then."
Tan Zhenhua nodded slightly, then shook his head slightly and said: "I have only completed a part. I remember that I promised you a four-engine large aircraft. That is the key to solving our strategic transportation capabilities in addition to passenger aircraft." The bloodline of "Yun 10" will also be reborn on that plane. I want to call it "Yun 20".
Ma Fengshan then said: "Yes, "Yun 20", it will be a winged Kunpeng carrying our Huaxia Blue Sky dream. The road ahead is still long, but unfortunately, our old guys can't run. Now, the rest of the road depends on you young people walking on your own. By the way, Zhenhua, what do you think of Wu Guanghui?"
...
On the day of the successful first flight of C929, Ma Fengshan, who laid a solid foundation for China's large aircraft business, announced his resignation as chief engineer of China Commercial Aircraft Corporation. In addition to retaining a title of "consultant", he officially retired and took over this position. , Was Wu Guanghui, who was 38 years old at the time.
At the beginning of his tenure, Wu Guanghui found himself facing a number of huge development blueprints: there is a plan to further improve C929 and strive to deliver it to commercial use as soon as possible; there is a military model development plan that is modified on the basis of C929 with nationally produced parts; and there is also Tan Zhenhua. The proposed "Yun 20" plan to develop a new strategic transport aircraft based on 4 rounds of 15 ton thrust engines...
And when the spirited Wu Guanghui formally took over this heavy and long-distance honorable responsibility, and immediately plunged into the busy work, Song Wenhua, who was far away in Rongcheng, was also having a quick talk with Yang Wei.
"Yang Wei, what do you think of the YF22 that was tested in the U.S. last year?"
"Teacher, I think the design concept of YF22 is very advanced." Yang Wei gently shook his head and said: "According to public information, the YF22 aircraft has the "4S" capability and can be built without afterburner. To supersonic cruise, with a weak interception rate under a certain radar spectrum, super maneuverability and super strong battlefield situation awareness, this requires fighters to have a strong power system, excellent flight control, and aerodynamic shapes that need to take into account high lift, High maneuverability and low radar interception rate. At the same time, it also needs strong information acquisition and comprehensive processing capabilities. Compared with current fighters, this is almost a revolutionary technological advancement. If this type of fighter can be officially put into service according to this standard, I am afraid that all the fighters in the world are not their opponents."
Song Wenhua sighed a little: "Yes, this is a revolutionary technological advancement. The Americans are in the front again. I have to admit that the Americans' assessment of the future battlefield environment and requirements for weapon design do have very With a clever forward-looking vision, we still have a long way to go to catch up."
Yang Wei said: "But teacher, according to the results of the pre-research projects that we have jointly promoted with Xijing Institute and 4014 in the past few years, it is not an unbreakable technology to achieve a weak interception rate under some radar spectrum. Difficulties. The measures that can be taken include taking full consideration of the reflection angle of the shape to the radar wave when designing the airframe, minimizing the exposed parts in the shape of the aircraft that are prone to radar wave reflection, and coating the whole machine with radar wave absorbing materials. In fact, the most difficult is the last two items. To reduce the exposed parts in the aircraft shape that are prone to radar wave reflection, we need to build an advanced large-scale microwave anechoic chamber for testing, which requires high-precision sheet metal processing capabilities for process realization. The fuselage skin installation process like this is definitely not good, and a major upgrade is needed, so we also need high-precision special machine tools. In addition, we also need to consider changing all weapons from external to internal. This poses a very high challenge to the design of the shape and structure of the aircraft. However, I believe that if the Americans can do it, we will certainly be able to do it. It is just this absorbing material that is not the only thing that companies and scientific research institutions in our aviation industry can do alone. If it is resolved, we need to see whether we can make progress in the field of basic materials in China's entire society."
An imperceptible smile flashed at the corner of Song Wenhua's mouth, but he quickly grabbed it, and then asked: "It seems that you have been concerned about the progress of the next generation of U.S. fighters during this period. Then you can talk about it. Tell me, what do you think of the other 3S in these 4S?"