Back to the Republic of China to be a editor

"Do you know how I came to North Korea? It was September. Secretary Zhang knew that I had arrived in Shenyang, so he asked his secretary to take me to his home. As soon as we met, he said, Liming, let's go together to resist US aggression and aid Korea! I said, okay." Ah! Without saying a few words, he asked me to ride with him to the logistics department of the Northeast Military Region."

On the outskirts of Pyongyang, Liming, Chief of the Volunteer Army's Front Staff Office, led the cadres and soldiers of the logistics station, standing outdoors waiting for the domestic train.Everyone was shivering from the cold, Li Ming and the cadres of the logistics station beside him stomped their feet to keep warm while chatting aimlessly.

"Secretary Zhang told Minister Li that I used to work in Jidong and was very capable. Minister Li asked me to work as the secretary director of the Ministry of Transport. I went to work the next day. But after less than a week, Secretary Zhang said that my job needs to be changed, and this changed to Pyongyang. I haven’t been abroad before.”

In the past, when fighting domestically, the troops were supported by ordinary people for food, lodging, supplies, and transportation, and the PLA could only walk.In North Korea, neither farmers' associations nor local food collection could be launched, and all materials had to be transported from the country.Under the situation that the U.S. military has absolute air supremacy, the railway transportation is limited to Anton to Pyongyang, which can only be opened to traffic intermittently.From Pyongyang to the 20th and [-]th parallels, there are still hundreds of miles away, so we can only take the time to "flash".The volunteer army's front-line work, that is, "front-line logistics", is for this.The Pyongyang Station of the Front Office is a hub for railways to cars, and the logistics department is hiding in [-] caves near the bombed city of Pyongyang.

The cadre of the logistics station next to Liming took out his pocket watch from time to time, because he was too worried about the time of the train's arrival. "The transportation and supply line is getting longer and longer. When the supplies are sent to us in Pyongyang, we can no longer take the train in front of us. We have to change cars. In the end, not much can be sent to the front line. This battle is too difficult to fight!"

At the Beijing Institute of Computer Science, Zhang Jue, the busy vector machine team leader, suddenly received a notice from the Military Commission to prepare 4 customized vector machines, as well as some spare parts and parts. The sooner the better, the comrades of the general staff will come to the door pick up.Zhang Jue had already received Tang Hua's telegram before, but Tang Hua's telegram did not tell him what the purpose of preparing the four vector machines was, but only said what hardware would be temporarily added to the customized vector machine, and asked the computer office and The Communication Electronics Institute cooperates with the comrades of the General Staff to meet all their needs.

Zhang Jue took a look at the points mentioned in the telegram. It seems that some interfaces used on the fire control computer—the prototype of the vector machine now developed have been reinstalled?

Tang Hua sent telegrams to the Computer Institute and the Military Commission at the same time.The telegram to the Computer Institute did not say anything about the S-25 missile system, and the telegram to the Military Commission said a lot. Although it still cannot say the key data of the S-25 missile project, the Soviet Union authorized Tang Hua to tell the Military Commission This is a kind of anti-aircraft missile, which is a highly secret weapon program underway by the Soviet Union. It can shoot down the medium-high altitude and long-range anti-aircraft missiles of B-29 and B-36 flying at high altitude.If the missile is successfully developed, the Soviet Union can provide it to China for "trial use" and provide an air defense umbrella for the city of Pyongyang and our army's supply line south of Pyongyang.Whether the missile can be developed on schedule depends on Tang Hua and the Beijing Computer Institute.

"So, Tang Hua will stay in the Soviet Union for the time being and won't come back?"

This was the first thing Xu Shuai asked when he heard about Tang Hua, the fire control computer, and the Soviet anti-aircraft missiles.

Chapter 121, This Missile Is Too Bad

Moscow suburbs.

After writing the telegrams to the Military Commission and to the Beijing Computer Institute, Tang Hua handed over the draft telegrams to the officers of the People's Committee of the Ministry of State Security.

Now if you send a telegram or a letter to China, you have to check it with the MGB, so let’s check it.

After sending off the MGB officer, Tang Hua collapsed on the sofa.

Played off, can't go back now...

This time I came to the Soviet Union for the ostensible reason of opening the Laser Physics Society. Tang Hua decided to come because he wanted to sell the T51 computer and wanted to get medium and high-altitude air defense missiles from the Soviet Union.

Of course Tang Hua knew that the Soviet Union was working on the S-25 "Golden Eagle" air defense missile, and he also knew that the S-25 was having a difficult delivery.If it is not difficult to deliver, the Soviet Union is not in a hurry to ask for help, it is estimated that China will not be able to get this kind of missile.

The missiles of this era, whether they are anti-aircraft or anti-ship, regardless of the United States, the Soviet Union, or Britain and France, if the chain is lost during the development process, it is most likely due to computers or microelectronic devices.Either the reliability of the computer system is not enough, or the design of the computer system is flawed, or there is no computer system that uses ultra-complex electromechanical circuits to realize certain computing functions, resulting in an extremely high failure rate of the system complexity.

When Tang Hua intervened in Project 1949 in 590, he discovered that the Soviets used an extremely complex electromechanical system to allow the missile infrared signal to capture the target and then issue correct control commands.In the end, Tang Hua realized it with some electromechanical circuits and some vacuum tube analog computing circuits.

Therefore, China, which exclusively masters transistor miniaturization computer technology, should have a high probability of being able to solve the technical problems encountered by the S-25 missile.

Before coming to the Soviet Union, Tang Hua had conceived it. Led by Tang Hua, the Beijing Computer Institute, Beijing Communication Electronics Institute and the First Special Bureau established a cooperative relationship. The two sides shared information and jointly solved the current problems encountered by the S-25 missile. Get this missile out according to the deadline given by Comrade Stalin.In this way, firstly, on the Korean battlefield, a surface-to-air missile network can be established from ultra-low altitude to [-]-meter altitude; secondly, the cooperation and sharing between the two parties can allow China to obtain some technical data on the design of medium- and long-range air defense missiles, maybe in a few years You can set up a missile research institute and do it yourself.

After talking about the cooperation, Tang Hua returned to China to restart the anti-aircraft missile fire control computer project team. The Beijing two institutes that have developed the Hongqi-1 missile fire control computer should be familiar with this.

However, the only omission is that they underestimated the degree of caution of the Soviets. They did not believe in the research institute established by China in Beijing, even if Tang Hua and the central government had made guarantees.

Obviously this kind of missile is going to be handed over to China, and it is the first time to try it out.But having said that, sometimes the countries and armies that use this weapon may not have the technical information and data in the development process.

So now I can't go back to my country.The matter with the Bureau of Electronics and Information Industry is still minor, and it's time for another fight in North Korea.

Also, this year's Spring Festival will not be able to pass.The Spring Festival is on February 2th, and there are still 6 days before the Spring Festival. 14 days can't be done.It will take at least 14 days after sending the telegram until the four customized vector machines are shipped to Moscow.

Thinking of this, Tang Hua became even more depressed.

He took out his wine glass and poured some Moldovan-made Kerikva. He drank and paced around the villa assigned to him as a corresponding academician, but Tang Hua still couldn't find a way out after half a glass of wine. Let's look at S first. Let's talk about the current status of the -25 missile project.

……

"This is the song and sheet music mailed to my wife." Tang Hua handed a tape to the MGB officer and brought a letter, "What machine do you use to play it when you check?"

"I don't know about this, and this kind of inspection has never been done before." The MGB officer said.

"Don't copy my songs, otherwise I will sue Comrade Stalin."

MGB Officer: ...

The first special bureau.

"Can you provide me with the progress of the 'Golden Eagle' project and the range reports of previous test firings?" Tang Hua asked.

The chief engineer of the "Golden Eagle" project was the chief engineer from the Comintern factory. In the project team, Tang Hua also saw two Germans. These may be the legendary Nazi engineers who participated in the development of the "Waterfall" air defense missile.These two people voluntarily stayed in the Soviet Union to develop anti-aircraft missiles, and they had joined East German citizenship.

In the first special bureau, Tang Hua also saw the entity of the S-25 air defense missile for the first time.

really big, really big...

The S-75 (Red Flag-2) is already very stupid and clumsy in Tang Hua's eyes. It is 10 meters long, weighs 2.3 tons, and has a maximum range of only 40 kilometers.

The S-25 missile is 12 meters long, weighs 3 tons, and has a range of 40 kilometers...

The weight of the warhead is 320 kilograms, which is more than the charge of many anti-ship missiles. If it is used for anti-ship, a 4000-ton warship will probably kneel after eating an S-25.What's even more exaggerated is that the S-25 also has a second type of warhead, a 1-ton nuclear warhead.

Standing upright, this thing is more than three stories high and close to four stories high. When placed horizontally, there is basically no truck body that can hold it. They are all carried by special trailers.The missile has a pointed nose and a thin body, four large X-shaped tail fins at the rear of the missile, and four small control airfoils at the head.There's nothing unusual about the aero profile, either.Moreover, the S-25 missile was equipped with troops in 1955. Although the S-75, S-125, and S-200 were successively in service, the S-25 was used until 1982 before being replaced by the S-300 missile, which shows its design. There should be no fatal flaws.

"The reports of the first and second range tests are here," said the chief engineer, "and the high-speed photography records."

In the shooting range test and analysis laboratory of the First Special Bureau, Tang Hua saw the whole tracking video of the missile test shot by a high-speed camera.

It is said to be a high-speed camera, which is actually 120 frames per second, which can be slowed down by five times than normal speed.But in this era, it is almost the top-level special camera equipment. If the estimation is correct, the commercial film industry, including Hollywood and the Olympic Games, will not be able to purchase and use this level of high-speed cameras until seven or eight years later.

Not to mention that this high-speed camera also has a simple automatic tracking system that keeps the flying missile in the center of the screen.This is a machine specially tailored for missile and weapons testing.

Tang Hua couldn't help asking a digression first: "How much does this high-speed camera cost?"

"Forty-four thousand rubles a piece, it's not particularly expensive." The chief teacher said, "It's just that the price of the film is unbearable, and the price of high-sensitivity film is ten times that of ordinary film..."

Tang Hua: Forget it...

Tang Hua read the text version of the test shooting report. He fired 10 rounds in the first range test and 12 rounds in the second range test.

In the first 10 rounds, 6 rounds were out of control, and in the second 12 rounds, 8 rounds were out of control.

This is the rhythm of growing potatoes in Siberia...

Now the people from the Third Special Bureau have been dispatched in groups. The first group is looking for the unit that controls the rudder surface and the electromechanical system to tear it up, and the second group is looking for the unit that bombed the radio command receiving system to see if the problem is caused by someone else.

However, with the tradition of Soviet electromechanical equipment being large and heavy but highly reliable, there is a high probability that these two units will be fine.

Next, watching the high-speed photography documentary, Tang Hua discovered a big problem when he saw the second missile.

The missile flew halfway and broke?

This missile is too bad.

Rewatched, 5 times slower.Well, the S-25 missile flew out, and in about 10 seconds, when the engine propellant was almost burned out, it broke into two pieces.Slow down 10 times and look again, it is broken from the front of the main wing.

After watching all the test-firing documentaries of 22 missiles, 4 missiles broke or disintegrated in the middle.Three bullets were broken in two from the front of the main wing of the missile, and one bullet was more strange, it was broken from the front of the missile, which was probably the neck.