Chapter 191: Finally Flying the Telemetry Missile to the Full Range (3k)

Gao Zhendong was in a good mood when he returned from his teacher's house.

Firstly, I can help the teachers a little bit, and secondly, there is hope to form my own information technology team.

The people in the computing center are very helpful, but sometimes they are not so convenient after all.

The people at the Third Steel Rolling Mill are also very good, but they are not trained in information technology.

This had a certain impact on some of his ideas. At least, he didn't have to do everything himself when communicating with the Institute of Operations.

He still knew how Zhuge Wuhou died. He could learn other things but not this.

The next morning, the things from the computing center were delivered, which were the modem circuit boards that Gao Zhendong had asked them to make.

The components purchased from the Lou family arrived earlier than this batch of circuit boards.

So Gao Zhendong became a welder with great enthusiasm, specializing in electronic screwing.

For him, it was a chance to take a break.
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Somewhere on the seashore, the commander gave the order: "Four, three, two, one, fire!"

Su Weihua, who temporarily acted as the bugler, pressed a red button marked "launch" on the metal console, and a red light on the button lit up.

On the inclined launch pad not far ahead, there was a spindle-shaped object with two triangular wings with relatively large sweep angles and a tail fin. It was about six or seven meters long and slightly short and fat. Suddenly, a flash of fire appeared behind it, and it flew away from the launch pad with a "boom" sound, dragging a long trail of thick smoke and flying into the distance.

"Booster jettison!"

"Main engine ignition is normal."

"Telemetry missile number three is tracking normally."

"The telemetry missile altitude is normal."

"The telemetry missile is flying in the normal direction."

"Reached the designated range."

Soon, an excited voice came from the radio: "The telemetry bomb splashed down in the designated area, and the bomb body is being salvaged."

There was jubilation at the scene. They had just returned from the cooperative improvement research on the imitation anti-ship missile at the Missile Research Institute. This was the first telemetry missile to use a radio altimeter and also the third telemetry missile in the entire imitation process.

The first two tests failed due to problems with the membrane pressure altimeter, which resulted in incorrect altitude.

One of the telemetry missiles lost speed during rapid adjustment due to its fluctuating altitude and fell into the sea.

The other one was more direct, and the altimeter took the missile directly into the sea.

This time, Gao Zhendong suggested that they change the membrane pressure altimeter to a radio altimeter, and they finally completed the course successfully.

"Finally completed the full range flight."

"I've fired several rounds and finally overcome the problem of losing altitude."

"Our rounds have a range 5 kilometers further than the original ones!"

"Now there is the possibility of beyond visual range strikes, haha."

Don't get me wrong, the beyond-visual-range strike here is actually only 40 kilometers. Strictly speaking, for people today, any strike beyond the direct visual range caused by the curvature of the earth is considered a beyond-visual-range strike.

For ordinary warships, this distance is about 20 to 30 kilometers.

The original range of this missile was 35 kilometers, and the fuel used was alcohol. So the story about the Russian missile soldiers stealing fuel is not necessarily false.

When the Chinese took it over and looked at it, they thought it wasn't feasible and was a waste of food, so they changed the fuel to kerosene. Since kerosene has a higher calorific value than alcohol, the theoretical range is only a little longer.

It is hard to imagine what the designers in the north were thinking when they used alcohol as fuel, because it really doesn't have much advantage over kerosene.

If I have to say, maybe the grain production there is high and everyone loves to drink it?
However, after switching to kerosene fuel, this theoretical range was not fully realized. Since the imitation diaphragm barometer was not as good as the original barometer, and the meteorological and temperature compensation measures of the original barometer had not been fully studied, neither of the first two telemetry missiles could fly normally to the full range.

This time, the telemetry missile successfully completed its entire flight. Although some data still needs to wait until the missile body is salvaged and the data recorder inside is retrieved to be confirmed, the fact that it completed its flight has already pushed the work forward a large step.

Qi Gong, Su Weihua's superior engineer, said with a smile: "Xiao Su, your classmates deserve the credit for this success, haha."

Su Weihua smiled and said, "Engineer Qi, Lian Wei and I have also made contributions. If we hadn't asked him to give us a meal, he wouldn't have been able to come up with this idea in such a short time. Haha." Lin Lianwei was also there. This improvement project was a collaboration between the Missile Research Institute and Su Weihua's unit. He was designated to assist Su Weihua and his team in this area. Therefore, relevant personnel from their Missile Research Institute also came to the first telemetry missile after the improvement.

When Lin Lianwei heard Su Weihua's words, he was also very excited: "Yes, yes, yes, we need to give him a few more meals, so that we can solve more problems, hahahaha."

Engineer Qi pointed at Su Weihua and said, "You two should treat him to a meal. Lian Wei, when you return to Beijing, please treat Director Gao to a meal on behalf of our research group. We can't just not show any appreciation, haha."

Lin Lianwei shook his head: "No, no, we have several units in Beijing that just give him a technical consultant or expert certificate, just a piece of paper, no money, hahahaha."

So, it is not easy to learn good things, but it is easy to learn bad things. We all have gone through this.

We were just chatting and laughing for more than two hours, and the speedboat brought the salvaged data recorder over, and everyone immediately started the intensive work of reading and analyzing it.

"Altitude control is very good, and it has been controlled within plus or minus XX meters of the target flight altitude."

"The response speed is normal. After the telemetry missile changes the target altitude, the control system responds quickly and the adjustment time meets the requirements."

"After the telemetry missile entered cruise flight, there was no overshoot or lag in altitude control throughout the entire process that did not meet the requirements."

"It works, it works. This method works!"

"."

Gao Zhendong, who was working, received a call. On the other end of the line was Lin Lianwei's excited voice: "Lao Gao, our test commander wants to talk to you!"

Before Gao Zhendong could react, the voice on the other end of the phone changed to a slightly calm middle-aged man's voice: "Director Gao, hello, I am Qi XX."

"I can't reveal more details, but I want to thank you. The principles and methods you provided have solved the problems that have been bothering us, which has made our work a big step forward. Comrade Gao Zhendong, thank you!"

After listening to it, Gao Zhendong could probably guess that the problem of the altitude of the anti-ship missile imitation had been solved, and that it was solved using the idea of ​​the radio altimeter he provided.

Gao Zhendong said modestly: "No need to thank me, I just said a few words, the specific work is still done by you guys."

The other party laughed and said, "Director Gao is too modest. What we lack are those few words you said. Haha, if this is all nonsense, then Director Gao can come to us if he has the chance and say a few more nonsense. Hahaha."

Gao Zhendong also laughed: "Haha, I will definitely come if I have the chance. If Qi Gong has time, please come and have a look at us and have some exchanges."

These words made Qi Gong's heart move, and he remembered another thing that Lin Lianwei mentioned on the day when he got the radio altimeter principle technology last time.

Maybe it's really worth a visit to Director Gao's place.

Thinking of this, he said without hesitation: "Okay, okay, I will arrange the work as soon as possible and come to learn from Director Gao."

As for missiles, except for the rocket part, the rest of the body is automated. Now it seems that the other party is a top technical expert in automation. If I have time, I can go over and have a good exchange with him, maybe I can really gain something.

Gao Zhendong didn't expect that the other party really had such intentions. This was also a good thing for Gao Zhendong: "I don't deserve to be a student. Welcome Qi Gong to come and guide our work. Haha, okay, okay, then I will be waiting for you in Beijing."
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When Gao Zhendong was immersed in debugging the modem software, Yu Yuncheng came to him.

"Director Gao, we have done some experiments and found that the thermal field that can be controlled well under vacuum conditions becomes worse after the protective argon gas is filled in. Is it because the argon gas reacts? Do we need to change to another protective atmosphere?"

Gao Zhendong thought about it and asked, "Is it possible that under the flow condition, the crystallization condition will be further deteriorated, or even polycrystalline?"

Yu Yuncheng was surprised. Director Gao had guessed it right. Since he could guess so accurately, there was a high probability that he knew what was going on.

"Yes, yes, it's amazing, Director Gao, you guessed it right."

Gao Zhendong laughed and said, "It's not that I guessed it right, it's mainly because you guys imagined this matter to be too complicated. The reason is very simple. To put it simply, it was the cold wind that blew, haha."

Yu Yuncheng didn't have the conditions to use a protective atmosphere before, and he used vacuum conditions to pull out the four nines. So in his mind, this thing is relatively advanced and complicated. This subconsciousness has somewhat affected his objective judgment of the facts.

He said with a bit of a smile: "I have thought of this possibility, but I think things are not that simple."

Gao Zhendong said: "It's very simple. In the three environments of vacuum environment, protective atmosphere and fluid protective atmosphere, the longitudinal temperature gradient increases step by step. The reason is actually caused by the cold wind. The heating part has a heat source supply and is not greatly affected by the flowing gas, but other parts are affected more. In summary, it will cause the longitudinal temperature gradient to increase. When the longitudinal temperature gradient increases to a certain extent, polycrystalline phenomenon will occur."

This is because Yu Yuncheng is not familiar with the protective atmosphere. If it were someone like Jinggang Plant who has experience in argon-oxygen refining, he might be able to react immediately.

After getting Gao Zhendong's answer, Yu Yuncheng was overjoyed: "It's easy to deal with now that we know the reason. Haha, I'll go debug it right away."

After saying that, he ran excitedly to the DJS-59 computer room.

All control systems are on the DJS-59. Gao Zhendong also borrowed someone from the computing institute to help him debug programs and operate the computer.

(End of this chapter)