Military Technology

"Then buy a new one. Anyway, it won't cost much more." Zhang Jun said with a smile on his face. For him or for everyone, new ones are definitely better than second-hand ones.

While they were chatting, the convoy gradually drove towards the destination, a rocket launch test site at the end of this desert road.

This is also a rocket launch test site that Wu Hao and the others have just completed in the northwest desert. The entire rocket launch test site covers an area of ​​10,000 mu. However, only a small part of the effective land is occupied, and the rest is open space. Drought-tolerant trees and vegetation will be planted in succession in the future.

In order to facilitate the transportation of rockets and equipment, they also specially built a desert asphalt road to connect with provincial roads and highways, extending into the rocket launch test site in the hinterland of the desert.

Of course, this rocket launch test site was not built casually. Not only did it need to be surveyed in advance, but also to apply for reporting, and it was very cumbersome to coordinate with the local and even multiple departments. Fortunately, the aerospace authorities have formulated a complete set of regulations and standards for the private aerospace industry, and even stipulated the location of rocket experiments, so they did not spend too much effort.

It is said that it covers an area of ​​10,000 mu, but when they arrived, they found that the buildings of the entire base were actually prefabricated houses and containers.

Because the time is too short, the infrastructure of the entire base has not had time to start construction. So at present, only some prefabricated houses and some offices converted from containers have been placed for the current launch experiment work.

"Mr. Wu, Mr. Zhang, welcome!" Yu Chengwu led a group of people to greet them with a warm handshake.

"This is too desolate."

Zhang Jun looked at the surrounding environment with a sun visor and sunglasses, and couldn't help but exclaimed: "Did you stay in such an environment for more than half a month? It's really not easy."

"Hehe, it's nothing, we're all used to it." Yu Chengwu grinned at Zhang Jun, grinning his white teeth. Maybe it's because he spent a long time in the hot sun, so this handsome guy who used to be white and clean is now tanned and dark. I don't know where he is working as a coolie on a construction site.

"Why did I see you alone, where is Xiang Ming?" Wu Hao looked around and asked.

Hehe, Yu Chengwu pointed at a distance of about one kilometer and smiled at the two of them: "At the launch site, the temperature is a bit high today. He has been watching the site to ensure that the rocket is safe. It is currently undergoing the final inspection."

"When will it launch?" Zhang Jun couldn't help asking.

"The launch window given to us by the competent authority is from 3:30 p.m. to 8 p.m., so we have sufficient time to prepare. We initially plan to launch the first experimental rocket at 4:50 p.m. and the second at 6:00 p.m. Two experimental rockets, separated by an hour and ten minutes.

This way, there is plenty of preparation time among us. However, this time is not accurate. The desert is prone to gusts of wind. If the wind speed is too strong at that time, the launch time may have to be delayed. "

Wu Hao nodded when he heard the words. Since they have made a decision, he will not say anything else, and everything will follow their plan.

"I came here this time to bring you some condolences. You arrange for someone to share with you. You have worked hard during this period, and I will treat you to a big meal when I go back." Wu Hao smiled at the crowd surrounding him.

"Hahaha, thank you, Mr. Wu, long live Mr. Wu!" Upon hearing this, all the scientific researchers cheered with beaming smiles.

We are all young people, so we are very serious about doing this kind of career that interests us. Although it was hard work, everyone enjoyed it. And Wu Hao is not bad to them, not only has a generous salary, but more importantly, Wu Hao's appetite for them, everyone also admires and agrees with this big boss from the bottom of their hearts.

"Okay, don't stand and bask in the sun, you don't think you are too dark, just find a place to take shelter and enjoy the cool. By the way, the condolences I brought this time include some sunscreen and sunscreen equipment.

Remember to use it later, especially girls.

All the pretty and handsome girls and boys have only been in the desert for a few days, and they are all tanned like this. If you don't take proper protection and maintenance, your boyfriend and girlfriend will not want you when you go back, and then don't rely on me. "

Ha ha ha ha……

After joking with everyone, Wu Hao and the others found a shady place to sit down, and then a staff member brought some fruit cold drinks.

In this high-latitude desert area, it is actually hot at noon for a while, as long as the sun is avoided, the temperature is not bad. Even at night, the temperature will drop a lot, and you will feel colder at night, and the temperature difference between day and night is huge.

"Let's briefly introduce these two experimental rockets. They only read the information and don't know much about it." Wu Hao pointed to some of the entourage who followed him this time.

Okay, Yu Chengwu nodded, and then he said to everyone: "We have prepared two rockets for this launch experiment. They are ultra-low-cost one-time experimental rockets using 3D printing technology and materials, and one-off rockets using recycling technology. The returnable reusable experimental rocket.

These two rockets represent the development direction of these two rocket technologies, one is to use ultra-low-cost disposable rockets. The biggest technical difficulty of this type of rocket is to reduce the launch cost as much as possible on the premise of ensuring safety and reliability, so as to improve the market competitiveness of this type of rocket.

The second is also a way to control costs. That is to use recyclable technology to recover the rocket after launch for a second or multiple repeated launches. "

"I know this. It's like SPX's Falcon 9 rocket. Have we developed this technology yet?" Zhang Jun asked with a bright eye.

And hearing Zhang Jun's words, everyone also looked at Yu Chengwu, and they couldn't help being surprised. They couldn't really get this technology out, it's too unreal.

Seeing everyone's reactions, Yu Chengwu shook his head with a smile and said, "The recoverable technology of SPX's Falcon 9 rocket is too complicated and we haven't mastered it yet, but we have thought of another recoverable technology.

In fact, it is not considered a new technology. Lao Mi used it decades ago. That is to use a parachute to slowly land the first-stage part of the launched rocket without losing it and crashing, so as to achieve the purpose of recovery.

Of course, compared to the technology decades ago, we have also made innovations in this. For example, through the grid plate rudder, we can control the landing place of the rocket, and better control the accuracy of the landing point.

In addition, at the moment when the rocket is about to land, the main engine will be re-ignited in an instant to play a role of reverse thrust. Thereby further slowing down the landing speed and reducing the impact on the rocket body. "

"The beggar's version?" Hearing this, Zhang Jun opened his mouth involuntarily. After thinking for a long time, he finally popped out these words.

Hahahaha... Everyone burst into laughter after hearing the words.