Take Off My Aviation Era

As for the use of outer space orbits, why South Korea’s Daewoo Group does not know so far. The reason is simple, that is, no one in the entire aerospace club feels that South Korea’s Daewoo Group has the qualifications to join.

In other words, no one is optimistic about Daewoo’s "Luo Lao" launch vehicle.

Based on this, those so-called foreign experts and veterans in the aerospace industry who praised the "Luo Lao" carrier rocket are all deceptive.

Although the people in South Korea are accustomed to beating themselves, it does not mean that they are a bunch of fools. By comparing the questions asked by their own reporters and the German media, they naturally noticed the tricks inside.

As a result, the hotline of the KBS news studio in Seoul was blown up in an instant. On the Internet, a group of passionate Korean young people asked the Korean Daewoo Group fiercely whether it was playing with national sentiments!

With such a serious crisis of trust, the KBS TV station, which South Korea’s Daewoo Group has invested in, naturally has to come forward and make some clarifications. Of course they can’t. The problem is that there is a ready-made professor from the Department of Aeronautics and Astronautics of Seoul University in the studio today. .

More importantly, in addition to taking office at Seoul University, Lee Dong-soo also studied aerodynamics at Princeton University in the United States in the early years. Later, he went to Imperial College in the United Kingdom as a visiting scholar for 3 years. After Daewoo Group launched the "Luo Lao" launch vehicle. , As a special consultant, went to Russia to negotiate the transfer of Russian-made first-class rocket technology for Daewoo Group.

It can be said that Lee Dongxiu can be regarded as the top of the pyramid in the aerospace field in Korea.

Because of this, the crisis of trust will expand when the beauty anchor’s earphones continue to send instructions from the producer to ask Li Dongxiu to ask questions, so the beauty anchor starts to ask Li Dongxiu: "Professor Li, China’s soaring Zhuang Jianye You heard it just now. It is extremely arrogant. Not only do we have to charge for the use of orbits in various countries, but also ask reporter Park in front of me, what does it mean to launch 11 different types of spacecraft five times in half a month? There is a question, what does Zhuang Jianye's words mean? Can our'Luo Lao' spacecraft launch 11 different types of spacecraft five times in half a month?"

Listening to the beauty anchor’s questioning, Li Dongxiu’s face in front of the camera was calm and indifferent, and the professor's noble and elegant performance was just right. However, in the depths of her heart that the camera can’t see, Li Dongxiu has a hideous and terrifying face. He turned into a wild beast and pinched the beauty anchor on the opposite side.

How many holes do you have in your head to ask such a buried question?

You know, even the Americans avoid talking about this matter. It's not that they don't want to comment, but that after commenting, they don't know that they haven't stepped down yet.

Because that means that it is not the problems that can be seen by the discerning people on the success rate of launch and the reliability of the rocket, but the extremely powerful aerospace industry manufacturing capabilities hidden behind China's take-off.

During the Cold War, the former Soviet leader Khrushchev told the Americans during his visit to the United States that the production of launch vehicles in the Soviet Union was as simple and efficient as the production of sausages.

This is of course bragging, because facts have proved that the complexity of aerospace products such as satellites and launch vehicles is not much worse than that of large jets, and because of this, the entire production cycle of aerospace products is particularly long.

Take South Korea’s Daewoo as an example. It takes more than half a year for Daewoo Group to manufacture a small satellite of less than 200 kilograms, and the subsequent test will take at least 2 months.

In other words, it will take 8 months for Daewoo Group to complete an artificial satellite with launch status.

As for the "Luo Lao" carrier rocket, it will take a 10-month cycle to officially go offline.

Europe can be a bit stronger than South Korea. Its flagship "Ariane" series of carrier rockets will take 6 months, and satellites will take 3 months.

Russia was more effective in the former Soviet Union, but since its disintegration, it has basically been similar to Europe.

The United States is stronger than everyone else. Some fast launch vehicles and satellites can be produced, manufactured, tested, and launched within a month.

The reason why the cycle is so long is mainly due to the special nature of aerospace products. For example, in the manufacture of launch vehicles, due to material, processing and process problems, a large number of small burrs and burrs will be generated. If they cannot be processed in time , It is extremely easy to cause seal leakage or other hidden dangers when the rocket is launched, which will cause the entire rocket to explode and be scrapped.

The work of cleaning up such burrs and burrs cannot be done mechanically at all. They can only rely on experienced skilled workers to get into the cavity of the launch vehicle and handle them inch by inch.

The first-stage rocket is okay. It has a large diameter and is easy for people to drill. It is not troublesome to do the work. However, the diameter of the second-stage and third-stage rockets is getting smaller and smaller, and many internal equipment occupy most of them. Space, so that the technical workers often have a weird posture for a few hours, making it difficult for many people to straighten their waists and their arms to play at the end of work.

What's more, the weight and figure of some skilled workers are still subject to strict restrictions. Otherwise, if there is too much meat, there will be no way to get into a small space to work.

Li Dongxiu once met a 58-year-old veteran technician at a carrier rocket production plant in the Ural Mountain Industrial Zone in Russia. He is the only technician in the plant who can work in the narrow space of a three-stage launch vehicle and fairing. In addition to the exquisite skills of this veteran, the more important thing is that the weight of the veteran who is less than 1.7 meters is maintained at 55 kilograms all year round. Therefore, in the Soviet era, he was trained by the factory as a professional in this field. This task is twofold. Ten years.

Similar situations exist in Europe, South Korea, and even the United States, and because of this, the manufacture of launch vehicles really can’t get up soon.

Not getting up quickly means low efficiency, and low efficiency will inevitably lead to higher costs. This is why many aerospace industries believe that China’s so-called cheap aerospace is a paradox, because the production efficiency of aerospace products in the world lies there. Well, how cheap are you!

However, China Ascendas used five consecutive high-frequency successful space launches in half a month to tell the world that things that you cannot do can be done by China Ascendas; things that you think are paradoxical, China’s take-off can be logical, if not so. In the aerospace exhibition hall of the Abu Zhanbi Defense Exhibition, it is impossible for China to take off with just a banner: "We shoot faster than anyone, shoot far, and shoot for a long time!"