I ask you to build tractors, but you build rockets?

On September 16, Lin Ju received a gift in Qiongzhou, which was handed over by the space agency.

A palm-sized plane model of the J-20 made of alloy material. The shape should be laser-cut. There are traces of high-temperature ablation and oxidation on the edges. The overall color is silvery white. It looks a little dirty like falling dust, but in fact it cannot be wiped off. The color of the material itself.

The four numbers 2201 are also laser-marked on the metal surface, which is obviously the number of the verification machine.

The person who brought the gift said: "This is the J-20B model given to you by Commander-in-Chief Yang Wei. It is cut from the main beam of the aircraft body and made."

After some explanations, Lin Ju learned that the interceptor version of the J-20's XW-9 engine had already made its first flight. He was suddenly confused: "Why were the beams of the test aircraft cut off? What's wrong with the aircraft?"

The visitor showed a wry smile: "Although the J-20B's fuselage skin took into account deformation under high temperatures and passed the test, it forgot that high temperatures were also conducted inside the fuselage. After 10 minutes of ultra-high-speed flight of Mach 3.43, the beam collapsed. It extended almost 70cm and broke the skin.

Although the aircraft landed safely, the beam had been irreversibly damaged and had to be scrapped, requiring the aircraft body to be redesigned. However, the XW-9 performed very well without any problems. "

"..."

"Say hello to him for me. It will be some time before I can return to Shuchuan. I accepted the gift. I like it very much."

Lin Ju accepted the gift and counted the time before Lao Ma got on the plane.

Ma Yilong's first stop in China was of course the Magic City. He had been here last year, but he only stayed for dozens of hours and left in a hurry without even watching Xinyuan's rocket launch.

And due to changes in the world line, he did not participate in the 2015 Qiongzhou Boao Forum, which was one less event than in the original world line.

Lin Ju knows that this trip to China will last about four days. On the 18th and 19th, he will be in Shanghai to discuss Tesla's production base in China, which is the construction of the future super factory. On the last day, he will come to Qiongzhou to see the super rocket. .

Thinking of Lao Ma's super factory, Lin Ju couldn't help but feel a little emotional.

The biggest impact of the Tesla Gigafactory on China is the basic salary of local car companies.

In Aramco, the hourly wage of automobile factory workers is about US$16. If we follow the current standard of four days off and two days off, the average working time per shift is 11.5 hours, which means that if this wage is moved to China, the daily wage is 1,140 yuan.

Of course, this is actually impossible. Lao Ma once wanted to set the monthly basic salary at the Magic City Super Factory at 8,000 yuan. However, he was unanimously boycotted by domestic companies and dropped to 5,400 yuan under tremendous pressure.

After all, purchasing power is different, and price conversion is also different. For domestic car companies with an average basic salary of 2,000 to 3,000 yuan, if they are forced to follow Tesla in raising the basic salary, it will mean a huge increase in costs.

The basic salary refers to the 8-hour work system and normal working days. The rest of the time is considered as overtime, and you can get a salary of 5,000 to 6,000. So most of it comes from overtime. The standard working hours in this domestic environment are Can't make money.

In fact, overtime work exists in companies in various countries. About 10 hours a day is the norm. The 40 hours or less work system per week in Europe and the United States is just a reform of the standard work system, which increases the number of overtime hours and pays overtime pay.

Xinyuan is of course different. As the company grows larger, Lin Ju’s minimum basic salary for workers is more than 6,000 yuan. It is also a rare five-day work system in China that can be implemented. There is no emergency production on Saturdays and Sundays. The tasks do not require overtime and have more fringe benefits.

The Modu Super Factory has no impact on Xinyuan, but it has an impact on Xinan Automobile. The latter is not a large parent company that can make money by relying on its far-leading technological advantages. It must consider the labor of the automobile factory.

However, some Xinan welfare companies that adhere to Xinyuan have already surpassed ordinary car companies by a large margin. The gap is not big and they are mainly positioned in the mid-range and above markets, with higher profits. Other car companies can only hope for more blessings...

…

"In 2011, we were planning the configuration of the space station's cabin. At that time, we called this cabin the Experimental Cabin II, and the Magic City team was in charge. In 2014, we decided to call it 'Mengtian', and the cabin design was basically around the optical system it carries.”

The two experimental cabins of Mengtian and Wentian have been loaded onto the two battle-hardened and black Xinyuan-2 rockets. At this time, preparations are being made to close the fairings. Experts from the Fifth Academy who participated in the development are introducing Lin Ju .

“The cabin had not yet been manufactured at that time, but it was determined to be the Long March 5 launch, so the maximum diameter we designed was only 4.2 meters. Now the maximum diameter of the new Mengtian is 7.2 meters, and the fairing diameter is 8 meters.

Now its emission mass has increased by 20 tons, but it is not enough. The Magic City team has expanded the size of the optical system to more than double the original observation performance, and expanded the power generation to 70KW. Although the space is enough, the quality has improved. beyond.

After it is launched, it will need to be fired again to add and install some cabin equipment. At that time, Mengtian should have an operating mass of 56 tons. "

Lin Ju: "Installing equipment in the cabin? Will there be any trouble?"

"That's not the case. The subsequent equipment installed in the cabin is the control part and computer, not the most sophisticated optical part. And the most important thing is that the size of the interface is still 2.5 meters square. Any equipment can be easily accessed. Be careful. Just don't bump into it, I believe in our astronauts."

Lin Ju nodded and continued to admire this huge experimental cabin for the last time before closing the fairing. Because the diameter was too large, an 8-meter fairing was used, which was 2 meters larger than the diameter of Xinyuan-2's rocket body. It looked very spectacular. .

Cooperating with the space agency to manufacture the Wentian and Mengtian experimental cabins is not just a simple shell made by Xinyuan and the space agency. It is worth learning about the equipment installation essentials, prevention and redundancy measures, and cable management in the cabin. , the manufacturing of the axial compartment of the Qianjin borrowed these technologies.

Moreover, Xinyuan also participated in the manufacture of an important part, the heavy-duty robotic arm of the Wentian experimental cabin.

This robotic arm can be used to transfer the position of the cabin section if the docking interface needs to be freed, and can also be used to grab spacecraft or satellites.

For example, if large satellites in the future cannot be repaired by the space shuttle, they can be taken to the space station and slowly repaired. There are positions on the cabin to fix the extravehicular spacecraft.

This robotic arm has a maximum length of 26 meters, can bear a load of 190 tons, and has a dead weight of 3.2 tons. It is equipped with the first generation of AI control technology.

In the AI ​​state, the robotic arm does not require human control. It captures the target through its own rich sensors and only needs to input instructions to accurately complete the task.

Although Xinyuan's own highest chip technology only stays at 14nm, the potential of ternary chips in AI has been gradually tapped, and engineers are becoming more and more comfortable with it.