(There is a small omission at the end of the previous chapter.,Yuzu has been revised.,This has caused inconvenience to all book friends.,Yuzu said I'm sorry)

Listening to Chen Zihao's words, the people in the technical department all looked at him suspiciously, and countless questions converged into one sentence: "Where is the computer you are talking about?"

And Chen Zihao was also stunned when he saw everyone's eyes, and then he reflected, and then handed the red-headed document paper in his hand to Lu Jiadong:

"This is the approval document for the calculation of shells given to us by the Provincial Computer Center!"

Lu Jiadong took over the document, which did not contain much content, and Lu Jiadong only glanced at it all after a few quick glances, to the effect that the relevant calculations of the joint research group on the improvement of artillery shells could be calculated using the large-scale computer in the Guixi Provincial Computer Center.

Not only that, but behind this document, there was also a telegram sent by Wang Chuanchen, which explained that the large-scale computer belonging to the Guixi Provincial Computer Center was a new type of large-scale computer in the country, with 1 million operations per second.

"When did we have more than 1 million computers in Guixi Province?"

Yang Limin took the document, pushed the glasses on his eyes, glanced at it a few times and shook his head noncommittally, while Hu Qinghua next to him saw it, and stepped forward and asked:

"Is it dis-1804?"

"That's right, this is it!"

"That's right!" After listening to Lu Jiadong's words, Hu Qinghua nodded and continued with a smile: "Speaking of which, this computer is also related to the Vietnamese monkeys on the other side of the border, who are preparing to develop domestic industry and economy after the end of the War of Resistance Against the United States, especially the national defense and military industry.

Therefore, just like we applied for the aid of Taiwan's high-performance computers, Vietnam was not like this at that time, so the state quickly approved, but then Sino-Vietnamese relations plummeted, and the state completely suspended aid to Vietnam, and this computer that was about to leave the country was also stopped by the higher authorities and placed in the computing center in Quai Khe Province.

Speaking of which, this machine is the latest high-performance computer developed by our country in recent years, with strong computing power, not bad compared with foreign countries, and there are few similar machines in China.

"Hu Gong, listen to what you said, it seems that you know a lot about this computer?"

Listening to Chen Zihao's words, Hu Qinghua couldn't help but show a little embarrassment on his face, but he didn't hide it: "When I developed a new gun, I applied to use this calculation for calculations, but"

Hu Qinghua said that he didn't say anything more, but everyone present knew what happened next, and Lu Jiadong naturally knew it too, but he didn't care about this, but kept paying attention to the dis- In 1804, as a military worker, Lu Jiadong knew that China did not start late in the field of large-scale computers, as early as the 50s began to develop the first generation of large-scale computers, and by the 70s had developed several large-scale integrated circuit computers with a computing power of 1 million times per second, and their performance was not worse than that of computers in Western countries.

On this basis, China has since independently developed the "Galaxy" series of supercomputers and the "Dawning" series of supercomputers with hundreds of millions of operations per second, and even in the 21st century, the "Tianhe 2" has become the world's fastest supercomputer with the excellent performance of 549 million billions per second and 339 million billions of double-precision floating point operations per second.

It is precisely with such a super brain that China's military industry has plugged in its wings to take off, creating one after another national weapons that have shocked the world, of course, the number of such computers is extremely limited, and the concentrated departments are mostly in key departments such as nuclear energy, aerospace, and meteorology.

It is impossible for a local computer center like Guixi to be equipped with such a high-performance computer, but after hearing Hu Qinghua's words, Lu Jiadong understood the reason, and then couldn't suppress his excitement:

"Haha, with a computer with a computing power of millions per second, the progress of our artillery shell improvement and development will be greatly improved!"

"That's right!" Yang Limin was also so excited that he had some tears: "With such a computer gang, our artillery shell modification and development is like putting on wings, so I will prepare the materials and immediately leave for the provincial computer center!"

Saying that, Yang Limin turned around and prepared to go to the data room next door, but before he left, he found that the people around him cast strange eyes at him, Yang Limin was not stupid, and he couldn't help but stop looking at the eyes of the people around him:

"You are"

"Lao Yang, it's almost 11 o'clock in the evening, and you have to wait for dawn to go!"

"11 o'clock in the evening?" Listening to Lu Jiadong's words, Yang Limin paused for a moment and reacted, so he smiled awkwardly: "Look at my impatience, hehe, hehe!"

Yang Limin's conscientious and responsible attitude towards his work is well known, so no one makes fun of him for it, but everyone is so happy that he can use the computer, so that the brightly lit technical department erupts into cheerful laughter from time to time

Not only that, under the coordination of Wang Chuanchen, the DIS-1804 mainframe computer of the Guixi Provincial Computer Center rejected all applications from other units, so this large-scale computer became a special large-frame computer for the joint research group.

However, there are many inconveniences in using this large-scale computer, mainly because his scale is relatively large, unlike the personal computers of later generations that can be moved at will, and if you need to calculate, you can only bring the data to the computer room of the provincial computer, because of this, Yang Limin is stationed in the provincial computer center in order to study and calculate.

In addition, although this large-scale computer has strong computing power, but it is limited to this, the drawing function is not, so in the drawing still needs to be manual, but Lu Jiadong is not worried about this, after nearly two years of development, Wanshan factory has trained a group of very good draftsmen, although it can not be compared with Yang Limin such an old draftsman, but its maturity and accuracy have also reached a very high standard, and because of this, Yang Limin dares to be resident in the computer center.

Of course, in addition to Yang Limin, Lu Jiadong was also very busy, and in order to take care of other research and development of the Wanshan Plant, he had to run between the computer center and the Wanshan Factory, and the other members of the joint research team did the same, all of them did their best to complete the development of artillery shell modification as soon as possible.

In this way, with the joint efforts of all the research and development personnel and with the help of the DIS-1804 mainframe computer, the joint research team successively completed a series of calculations, such as the calculation of the energy of the bottom row grenade ammunition column, the calculation of the ballistic performance of the ammunition, the numerical calculation of the ammunition overload, the calculation of the attitude control of the ammunition, and the calculation of the distribution of the proportion of the bottom resistance.

At the same time, Hu Qinghua's research and development of the medicine column has also made breakthrough progress, according to the overall requirements of Lu Jiadong's layout, the medicine column is mainly divided into two parts: ignition equipment and composite bottom discharge agent, among which the ignition tool is the most difficult, because the composite bottom discharge agent is ignited by the high-temperature and high-pressure gas of the propellant in the gun chamber, but it will be depressurized near the muzzle

The phenomenon of being extinguished caused by the combustion of the composite bottom discharge agent, thus visualizing the range of the bottom row grenade.

For this reason, it is necessary to add an ignition device to the bottom row device, so as to continuously burn the composite bottom discharge agent when the muzzle is depressurized, and Lu Jiadong and Hu Qinghua After many experiments and unremitting efforts, they finally determined that the ignition agent mixed with zirconium powder, magnesium powder and ** can not only continue to circulate, but also will not be extinguished when the muzzle is depressurized.

At the same time, Hu Qinghua also used 75% chlorate amine and 25% terminal carboxybutadiene to configure a composite bottom discharge agent, it is based on these calculations and the basis of the agent, Lu Jiadong quickly designed a 130mm bottom row grenade, the total length of the bomb is 6.25 times the caliber, the length of the cylinder is 2.01 times the caliber, the length of the stern is 0.59 times the caliber, and the stern angle is 3 degrees.

Wherein the bottom exhaust device is composed of a rigid screw, a bottom discharge column, an ignition device and a bottom row shell, and the function of the steel screw is to connect the projectile warhead shell with the bottom row shell and fix the ignition device.

The function of the bottom row shell is to fix the bottom row of the medicine column radially and axially, provide space for the burning of the agent, and pass through its bottom

The exhaust hole at the end controls the combustion law of the agent and the discharge flow rate of the gas.

In the selection of materials, because the exhaust pressure of the bottom discharge column is not large, so the selection of the shell uses high-strength aluminum alloy materials, in this regard, the production process of Wanshan plant is very mature, there is no difficulty in remanufacturing, the only difficulty is the configuration of ignition equipment and medicine column, but this aspect is also solved under the coordination of Wang Chuanchen, that is, the Guinan plant in Guixi cooperates with the Wanshan plant to configure the exhaust column, and then fills it into the bottom exhaust device produced by the Wanshan factory, and assembles it on the 130mm grenade in the Wanshan factory。

When the first batch of assembled 130mm bottom-row grenades walked off the production line, the members of the joint research team couldn't suppress their excitement and applauded warmly, but at this time Lu Jiadong was not so happy, but frowned and looked at the date of February 22 on the calendar, at this time, Zhao Wei, director of the factory office, hurriedly rushed to the artillery shell assembly line, and saw Lu Jiadong hurriedly said with a worried face:

"Xiao Lu, urgent electricity!"

As he spoke, he handed a piece of newspaper to Lu Jiadong, and Lu Jiadong took the telegram paper, the content on which was very simple: "In view of the successful development of the 130mm bottom row bomb, order your factory to quickly produce a batch of such artillery shells, and immediately transport them to the front line, and Comrade Lu Jiadong will follow up and guarantee them, and the payment will be made by the General Staff Armament Department!"

After reading this telegram, Lu Jiadong couldn't help frowning, and Yang Limin next to him couldn't help but ask with concern when he saw this:

"Xiao Lu, what's wrong?"

"Looks like I'm going to the front!" Lu Jiadong said, putting down the message in his hand

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