Chapter 265: Don’t give up if you don’t try
This is the cute man from science and engineering. He may forget many details of romance, but he will always keep a little persistence in his heart in places that ordinary people don’t think of.
Gao Zhendong and Lou Xiao'e saw off the man who was moving the TV. Lou Xiao'e smiled and hung it around Gao Zhendong's neck: "Zhendong, your compound is so fun."
"It's fun. ? The fun is yet to come," Gao Zhendong said with a smile.
"Well, it would be nice if I got married earlier, haha." Lou Xiao'e was still not satisfied.
I'm too lazy to talk to you. Are you greedy for our courtyard?
Time passed quickly, and a few days passed in the blink of an eye.
Mr. Cai is reporting to his leaders on the gains in the capital. He went through a bumpy journey in planes and cars before returning to his work unit.
It took a while to wait for a suitable plane.
“This is the harvest this time. Regarding the engine throat lining, the Carbon Research Institute is conducting experiments. And the gas rudder matter seems to have been basically solved. It is recommended that we go through the relevant procedures as soon as possible and report to Beijing No. 3 Steel Rolling Plant customizes related components ”
After listening to his report, the model chief engineer smiled and said: "Lao Cai, thank you for your hard work. Regarding this matter, you should use the characteristics of this new material as soon as possible to see if there are any other components that need to be made, and we can customize it together with the other party."
Mr. Cai, who was in charge of rocket power, nodded after listening to the chief engineer's request, and then remembered another thought of his: "In the past few days, another thing has been rolling in my head. We Is it possible to consider walking on two legs while imitating it, and try changing the fuel from the alcohol of the original model to something else, such as kerosene? "
This matter has happened since Mr. Cai was at the wine table. Hearing Gao Zhendong's words that "alcohol evaporates quickly", I kept thinking about it. In the past few days, I thought more and more clearly along the way, and I quickly determined the alternative source - kerosene.
After all, Mr. Cai is also an expert in this field. An excellent alcohol substitute like kerosene can be easily thought of.
When the model chief heard this, he was also very interested: "Huh? Lao Cai, have you thought so far in advance? Tell me."
The leaders in charge of this area are originally required not to always copy other people's things, but to copy as little as possible, and only copy one model to get a feel for it and lay the foundation for self-development. Then they should try their best to develop self-developed models.
The first-generation ballistic missile that we successfully copied was never put into service. What finally entered service was a self-developed model improved on it. It can only be said that we were very ambitious from the beginning. , is running towards self-reliance.
However, for the sake of safety, the completed imitation work must not be discarded hastily, so Mr. Cai’s suggestion is to proceed in two ways.
Mr. Cai said what Gao Zhendong said at the wine table that day, and then added: "What Director Gao said while drinking reminded me that we were not very satisfied with alcohol either. . The north side chooses alcohol to resist freezing, but this does not mean that we must follow suit and choose alcohol. After all, the calorific value of alcohol is not high, and the storage performance is too poor. "
The one in the north. The alcohol used in the model actually has another reason besides being anti-freeze. It is also an imitation or in-depth development of the original model. Its earliest technical prototype comes from the famous V-2 of Hans Cat, which is the world’s most famous model. The first operational ballistic missile.
The fuel of V-2 is alcohol. The reason should be related to the fact that when the V-2 was formed, Hanscat resources were almost exhausted. Petroleum products were used to feed their "armored zoo", and the missiles had to eat vegetarian food.
The chief engineer listened to what Mr. Cai said and asked: "So, you want to use kerosene?"
Mr. Cai nodded: "Yes, in terms of density, kerosene is the same as Alcohol is very close, so many original designs related to weight and density do not need to be changed significantly, and changes can be made quickly. At the same time, compared with gasoline, it has the advantages of higher flash point and lower ignition point, and its safety and start-up performance are better than gasoline. . At the same time, it has a low freezing point, a relatively high calorific value, complete combustion, and good storage performance. It is a better aerospace fuel.”
Different from the first impression, the ignition point of kerosene is actually lower than that of gasoline. But its flash point is much higher than gasoline. The former is related to starting performance, and the latter is related to safety. The flash point of gasoline can be as low as dozens of degrees below zero, which is a typical bad temper.
The ignition point of kerosene is probably over 80 degrees, while the ignition point of gasoline is over 400 degrees. The reason why gasoline is considered flammable in daily life is because it is extremely volatile and has an extremely low flash point.
The freezing point of kerosene is generally below minus 30 degrees. For our environmental conditions, although it is not as good as alcohol's more than minus 100 degrees, it is basically enough. At worst, add some anticoagulant.
Coupled with other advantages, kerosene has always been one of the important fuels for aviation and aerospace. Especially in the jet age, aviation fuel is basically kerosene that dominates the world, and aerospace is also widely used.
The chief engineer is also familiar with these and nodded: "Your considerations are very reasonable. We cannot be constrained by the original model and must consider improvements in advance."
Mr. Cai Then he pointed to the tungsten-molybdenum alloy information on the table and began to talk about the current advantages: "Of course, kerosene has a high calorific value, which will bring about many design problems. When the temperature is high, the pressure is high, and the material is put into question. "But I have considered it. We have 591 high-temperature alloy, high-temperature graphite materials with better performance, and valve gas rudder materials with better temperature characteristics, which can support us." Designing a better liquid fuel engine”
Pointing to the direction of the computer room, Mr. Cai added: "Now that we have computers that can be used at any time, we can greatly speed up many calculations in the design process, which is very beneficial for us to walk on two legs. "
The chief engineer thought for a while and asked: "Are you sure? After all, this will be a very heavy workload for you."
Mr. Cai nodded. Head: "I am very sure. After all, kerosene and alcohol are very close, and the conditions are so good now. If I don't give it a try, I will look down on myself. Time is precious." The chief engineer thought for a while and made a decision: "That's it. If you do this, you can file a report. I still don’t believe it. We can suffocate them to death.”
The second half of the sentence refers to the comrades from the north who are helping. It's really helpful, but being old-fashioned is really old-fashioned.
And now at this time, they are about to leave and have to think about self-reliance.
After talking about this matter, Mr. Cai talked about another idea of his.
"Guess who else I met when I went to the capital this time?"
He said this so confusingly that the chief engineer naturally couldn't guess: "Who?"
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Mr. Cai pointed in the direction of DJS-59: "You will never guess who the researcher of that computer is."
The chief engineer smiled and said: "Who is it? Our old acquaintance?"
When Mr. Cai asked this question, he could only look in this direction and guess.
Mr. Cai shook his head: "No, he is a researcher of this material."
He pointed to the information on tungsten-molybdenum alloy materials, then smiled and waited for the chief engineer's reaction.
As expected, the chief engineer's eyes widened: "This? Impossible, right? Can these two things be made by one person?"
Mr. Cai nodded: "Not only that, he also put a lot of effort into our high-performance graphite throat lining material and gave a lot of guidance to the Carbon Research Institute."
The chief engineer held back. The urge to explode: "Totally unexpected, totally unexpected."
Mr. Cai said: "I was thinking about something. I remember that we conducted a simulation test of computer navigation on DJS-59."< br>
He is not responsible for navigation, but he still knows these things.
The chief engineer nodded: "Yes, and the effect is very good. It's a pity that although DJS-59 is already very compact, when used here, it is still a bit large and consumes high power, which is detrimental to the overall situation. The design impact was so great that it had to be put on hold temporarily.”
In fact, he also felt very sorry about this matter. When it comes to reloading the DJS-59, both in terms of size and power consumption, it just happens to be stuck at a very large level. There is hope, but it is also difficult, which is very uncomfortable.
Currently, missile navigation uses platform-based inertial navigation. Simply put, it uses an inertial platform with a gyroscope as the core to measure the angular velocity and acceleration of an object. The attitude and heading of the object can be obtained, and then through The computer calculates or compares and outputs the navigation control signal.
In human terms, it calculates how far the missile has flown, and then outputs a control signal based on the flight distance and target distance.
The accuracy mainly depends on the inertial platform, but it is also inseparable from the computer.
The computers here may be analog or digital. As for a digital computer like the DJS-59, most of its features are undoubtedly better, but it cannot be used.
Mr. Cai said: "So I'm wondering if we can apply for a license and communicate with this comrade about related matters, such as improving or shrinking the DJS-59 to make it more in line with our requirements. After all, there are good things. No, it’s such a pity. Even if it doesn’t need to be used on this imitation model, it would be good to use it on the subsequent self-developed model.”
The chief engineer has no doubts about this. There is only one question: “This is true. It's easy. I'll make a report and give it a try. It should be fine."
But Mr. Cai smiled and said, "That's not necessarily the case. If we want to disclose our things to him, we need permission, and we want to find him at the same time. He also needs to apply for permission to discuss such matters."
After that, he told the Carbon Research Institute that he had asked the National Defense Work Committee for instructions before disclosing the relevant information about Gao Zhendong to him.
The chief engineer's eyes widened. He did not expect this: "Is there such a thing? It seems that this comrade is not simple."
I turned around and saw the tungsten-molybdenum alloy information on the table, and then thought about the DJS-59 in the computer room next to me. I couldn't help but laugh. This is no nonsense. How can such a person be so simple? I don’t get almost the same treatment here, so why can’t others get it?
(End of this chapter)