Chapter 494

In addition to the help of rich experience, there are also various detection equipment and telemetry equipment, which is also very important for the infinite gravity group.

When the launch vehicle and spacecraft carry out technical test, the TT & C communication system in the launch site should be tested jointly.

First, the field equipment joint test is carried out, and then the joint test is carried out with the TT & C stations, TT & C centers and survey ship equipment distributed all over the country and even in the world.

However, the TT & C station and the measuring ship arranged by the infinite gravitation group are still under construction and manufacturing. Without the help of the National Aerospace Department, the launch mission will be postponed for at least six months!

Even if the company spends money, the manufacturing and construction time of these things can't be accelerated. After all, the construction and manufacturing of these things can't be completed at once.

Without the help of these measurement and control stations and measuring ships, the launch of the rocket will never be carried out. Neither the company nor leitiantang will be allowed to delay the launch again in half a year!

So it is very necessary to cooperate with the National Aerospace Department. Anyway, for the recyclable rockets currently used by the company, in addition to adopting new materials and new manufacturing processes, the performance of the rocket far exceeds that of the Falcon 9, and there are not many technologies that can completely explode the Rockets made by the state.

After all, the inside information of a country is not something that a company can surpass in two years, especially in terms of experience.

Just like now, the two laboratory directors and the leaders sent by the Aerospace Department are watching the researchers of the infinite gravity group and the meteorological experts sent by the Aerospace Department are learning to release the meteorological reconnaissance balloons.

If this work is done by the experts of infinite gravity group, it can be done well in the end. After all, the company has recruited a lot of meteorological experts.

But few of them have the meteorological observation experience needed for rocket launching. If they were allowed to do it alone, it would be impossible to launch them years ago.

Most of the time, we can see that the launch forecast is pushed again and again because of the weather. However, it is clear that the weather is clear and windless. Why not delay the launch because of the strong wind?

In the process of space launch, all countries in the world must strictly abide by a set of rules called "weather launch Commission criteria". This set of rules prescribes various meteorological conditions. If there are no special mission requirements and none of them are met, the rocket launch must be postponed.

In the mission history of the space shuttle, nearly half of the delayed launch is related to weather factors.

The same is true of China's manned space launch. During the live broadcast of the launch, Yang Ma will definitely go to interview the weather station of the space city.

The weather station will report the wind speed, wind direction, temperature, humidity, cloud conditions and other detailed information. Finally, it will be summarized as a sentence: "the meteorological conditions can meet the launch requirements", and then the next step can be taken.

It can't be launched in rainy days. The rocket is composed of many precise electronic instruments and needs a lot of ground radar telemetry signals in the flight process.

Lightning can easily lead to short-circuit and failure of electronic instruments. Thunderstorm cloud also greatly interferes with ground telemetry signals, resulting in difficulties in rocket guidance and control. The powerful energy of lightning can even destroy rockets.

On March 26, 1987, the Centaur rocket of the old American cosmos God encountered this situation when it launched a US Navy communication satellite worth more than one billion US dollars.

Only 48 seconds after the launch, strong lightning struck the rocket. Many devices including the yaw control element of the rocket failed. The rocket self exploded in the air and the mission failed.

And the impact of wind on rocket launch is also very big! The rocket does not fly straight into the sky. When it reaches a certain height, it begins to turn, so as to meet the requirements of the mission's orbit inclination.

During this period, the rocket needs to undergo complex steering and attitude control, and the excessive wind speed, or even the wind shear with drastic changes in wind speed and direction, will obviously affect the control accuracy.

As the saying goes, "a mistake is a thousand miles". In the initial stage of the rocket, the control accuracy is very high. Therefore, it is necessary to minimize the impact of strong wind weather on the rocket.

The atmosphere in the rocket flight area is a synthesis of up to 100 km composed of troposphere, stratosphere, thermosphere and ionosphere.

However, there are different meteorological conditions and wind speeds in each layer, and the abnormal wind speed in any one of them will lead to the reduction of rocket control and even the failure of the mission.

Humans live at the bottom of the troposphere, but the wind felt here is not representative of the upper atmosphere at all. To understand the latter, we need to integrate the meteorological observation station of the launch site, sounding balloon, meteorological satellite and other factors to detect.

The infinite gravity group has little experience in this respect. If the company does not have the help of the National Aerospace Department, it will take a long time for the company to explore on its own.

"Director Liu, we want to thank you for your full support to our company! If there is no equipment and personnel supported by you, it is estimated that our company will have to wait at least half a year to launch the rocket! " Zhang hanxiu sighed with Liu Jingwen, head of the Aerospace Department standing beside him."Ha ha! Director Zhang, I don't agree with you. Our Aerospace Department has received a lot of help from your company!

The 100000 ton die forging hydraulic press of your company has helped us a lot. The overall strength of our rockets has been improved qualitatively, which is much better than the 80000 tons used before!

What's more, the forging tasks given to us by your company are the top priority. We don't have to wait for a long time as before. For this, our department is very grateful.

We should know that the production tasks of these large-scale die forging hydraulic presses can even be arranged to one year later, and each task is a very important task.

The country needs it, and some companies also need it. So before we wanted to use such a big guy in advance, it had to be reported and coordinated for a long time.

Now you have a large company, it really provides us with too much convenience!

There are all kinds of high-performance materials provided by your company, which also gives us more margin for rocket design and makes our rocket design more advanced.

Not to mention that your company has also shared the technology of recyclable rockets with our department. Of course, our department should attach great importance to such technical cooperation!

Therefore, our Aerospace Department is very willing to help your company. If you work together, our country's rocket technology will progress faster. " Liu Jingwen said with a smile.

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