Chapter 431

The United States and other NATO countries don't call the Soviet ground effect aircraft the Caspian monster! Baozixuan directly named the heiyun version of the ground effect aircraft "Xiangjiang monster", and I don't know what he thinks.

On the first day, all the engineers who were pulled out immediately began to discuss and study the ground effect. Many people have heard the name of skunk factory. Since the boss built this factory with Lockheed skunk as the target and imaginary enemy, the future work will never be easy.

Baozixuan also considered carefully when selecting personnel, and basically gathered the most suitable engineers and skilled workers of the whole black cloud group. It can be said that they are all people who can fight and win.

That night, as the boss said, they were all asked to sleep in the office. Fortunately, the living conditions here were good, and the boss was treated the same as them. I'm not saying anything, otherwise many people really can't stand it.

After breakfast the next day, baozixuan held a project meeting. Looking at everyone's eyes may be because of the salary increase or because they really have expectations for the project. In short, baozixuan is very pleased. At least he doesn't worry about his current working state and enthusiasm.

With a gesture from baozixuan, the largest LCD screen lit up. At this time, we found that the wall at the back was actually spliced with an LCD screen. The value of this equipment alone is not cheap. After all, the current LCD technology is not very mature. The processing difficulty and technical strength of such a large LCD screen are very high, and the production cost must be doubled. At present, many components can only be produced in the laboratory, and the yield is very low.

Looking at the screen, baozixuan said, "the design and planning of the first generation ground effect aircraft of heiyun has been completed. What you need to do is to make the scheme a reality and improve the unreasonable points in the design."

"Heiyun first generation ground effect aircraft" is named "Xiangjiang monster". Technical parameters: 108 meters long, 42 meters wingspan, 300 tons dead weight, 800 tons maximum takeoff weight and 50 meters maximum flight altitude; The wing is equipped with 8 heiyun three rotor turbojet engines. "

"Xiangjiang monster" has a voyage of 9000 kilometers and can transport 1200 people around the world at a speed of 800 kilometers per hour without being detected by any radar.

After seeing the design, all the engineers felt that the aircraft seemed to come from an alien. Baozixuan combines the aerodynamic layout of many future aircraft, making the design of Xiangjiang monster more scientific and streamlined.

The drawings combined with the data introduced by the boss make the engineer feel whether the boss really comes from an alien. This product can be produced at the current technical level of the earth, and everyone is skeptical.

At this time, an engineer asked, "boss, if the self weight is 300 tons and the takeoff weight reaches 800 tons, the material and structural strength of the aircraft may not be enough. After all, the self weight is only 300 tons, and aluminum alloy needs to be used on a large scale, but the metal strength of aluminum alloy can't have too high load. In this way, the whole aircraft is a contradiction, and we can only abandon one aspect. "

In fact, what the engineer said is very consistent with the current actual situation. Most aircraft in the world use aluminum alloy welding process.

Bao Zixuan: "we don't use aluminum alloy, we all use titanium alloy; So don't worry about the mechanical strength of the metal. "

At this time, another person asked, "boss, the cost will be frightening, and there is not so much titanium alloy on the market. Even if we have good relations with the Soviet Union, once our products come out; The Soviets may take the opportunity to cut off the supply of titanium alloy. At that time, all our previous designs will be pushed to the end. "

Bao Zixuan: "you can think of this very well, but we have obtained raw materials that can replace titanium alloy in the hands of the Japanese, but now the cost is still relatively high, and mass production has not been realized, so the first generation products are ready to use titanium alloy. And it doesn't matter if the Soviets don't supply. China is also a big producer of titanium ore. "

Seeing that many engineers are confused, baozixuan smiled and said, "since you are already a member of weasel factory, that is, the core engineer of heiyun group, there is no need to hide from you."

"This material I'm talking about is carbon fiber material. Carbon fiber is a special fiber mainly composed of carbon elements. Its carbon content varies with different types, generally more than 90%. Carbon fiber has the characteristics of general carbon materials, such as high temperature resistance, friction resistance, conductivity, heat conduction and corrosion resistance, but different from general carbon materials, its shape has significant anisotropy, softness, can be processed into various fabrics, and shows high strength along the fiber axis. Carbon fiber has a small specific gravity, so it has a high specific strength. "

"Carbon fiber is made of man-made chemical fiber with high carbon content and non melting during heat treatment. It is made by heat stable oxidation treatment, carbonization treatment and graphitization."

"Carbon fiber is a new material with excellent mechanical properties. Its proportion is less than 1 / 4 of that of steel. The tensile strength of carbon fiber resin composites is generally more than 3500MPa, 7 ~ 9 times that of steel, and the tensile elastic modulus is 23000 ~ 43000mpa, which is also higher than that of steel. Therefore, the specific strength of CFRP, that is, the ratio of the strength of the material to its density, can reach more than 2000mPa / (g / cm3), while the specific strength of A3 steel is only about 59mpa / (g / cm3), and its specific modulus is also higher than that of steel. "

In the eyes of many people, these things are difficult to understand, but the people who can be in this office are from science and engineering. The material data is very clear. After hearing the boss say that, they all think that this material will have great prospects in the future.

As early as 1969, Japan Carbon Corporation successfully developed high-performance polyacrylonitrile based carbon fiber. In 1970, Japan Toray company developed high-performance polyacrylonitrile based carbon fiber by relying on advanced polyacrylonitrile precursor technology and exchanging carbonization technology with United carbide company of the United States.

In 1971, Toray put high-performance polyacrylonitrile based carbon fiber products on the market. Since then, the performance, variety and output of products have been developing continuously, and they are still in the leading position in the world. Since then, Japan's Toho, Asahi Kasei, Mitsubishi Rayon and Sumitomo have successively invested in the production of polyacrylonitrile based carbon fibers.

Baozixuan obtained the patented technology and production authorization of carbon fiber materials from the Japanese through patent exchange. At present, this material has not received much attention, at least in Japan. It can be said that baozixuan picked up a leak.

There's another point baozixuan didn't say. Titanium alloy and carbon fiber are luxury ground effect aircraft. In the future, aluminum alloy version may be produced because of the cost, or steel version ground effect aircraft may be produced because there is not so much capacity demand. In short, in the future, ground effect aircraft will be equipped with multiple versions of high, medium and low, and will be customized according to customer needs. It is believed that many people will choose ground effect aircraft as a means of transportation, provided that the products are safe and mature enough.

Bao Zixuan: "the material problem has been solved. Next, we have to process all kinds of parts. Our time is limited. I hope you don't waste every minute here."

Fortunately, the drawings left by the Germans are very detailed, and baozixuan is only slightly changed. Otherwise, it will take quite a long time to test the structural layout and parts alone, and it is impossible to complete the prototype production before the Falklands war.

The data assigned to each engineer is different from the drawings. We all know that this is the boss's precaution against them. At the same time, it is also a detailed division of labor for them to make their work more efficient. This is normal in the production of large equipment, but if anyone can easily see the detailed drawings. It is very difficult to keep the product secret. Competitors can easily copy it by digging someone in the past.

Looking at the detailed drawings and technical parameters, we feel that this money is not easy to make. After all, this is not development. It is more about processing parts and testing the responsible area.

Although there are detailed drawings, engineers still have to test each produced part. After all, there is still a big difference between the things on the drawing and the real object. The most important production of aviation equipment should not be careless. Any problem in any link may lead to the crash of the whole aircraft.

Never let the company suffer losses because of your negligence, let alone human life. If this happens, their days in dark clouds will come to an end. Moreover, the most important reputation has been destroyed. It is estimated that it is difficult to find a job in the whole industry. No aviation or shipbuilding company will use an engineer without sense of responsibility.

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