Chapter 265 I won’t give up until I try
This is the lovely science and engineering guy. He may forget the romance in many details, but he will always hold on to the persistence in his heart in places that ordinary people would not think of.

Gao Zhendong and Lou Xiao'e saw off the people carrying the TV. Lou Xiao'e smiled and hung around Gao Zhendong's neck: "Zhendong, your compound is really fun."

"Is it fun? The fun is yet to come." Gao Zhendong said with a smile.

"Well, it would have been nice if we had gotten married earlier, haha." Lou Xiao'e was still unsatisfied.

I'm too lazy to say anything to you. Are you coveting our compound?
Time passed quickly, and a few days went by in the blink of an eye.

Mr. Cai was reporting to his leader about his gains in Beijing. He had gone through a bumpy journey by plane and car before returning to the unit.

It took some time to wait for the right plane.

"This is what we have gained this time. As for the engine throat lining, the Carbon Research Institute is conducting experiments. And the gas rudder issue seems to have been basically resolved. It is recommended that we go through the relevant procedures as soon as possible and order the relevant components from the Beijing Third Steel Rolling Mill."

After listening to his report, the chief model designer smiled and said, "Old Cai, thank you for your hard work. Please find out as soon as possible whether there are any other components that need to be made based on the characteristics of this new material, and then customize them together with the other party."

Mr. Cai is in charge of rocket propulsion. After listening to the chief designer's request, he nodded and thought of another idea: "In the past few days, another thing has been rolling in my mind. Can we consider walking on two legs while copying the original model and replace the fuel from alcohol to other things, such as kerosene, and give it a try?"

Mr. Cai has been thinking about this matter ever since he heard Gao Zhendong say "alcohol evaporates quickly" at the dinner table. Over the past few days, the more he thought about it, the clearer it became, and he quickly determined the source of alternative - kerosene.

After all, Mr. Cai is also an expert in this field, and it is easy for him to think of kerosene, an excellent substitute for alcohol.

When the chief designer of the model heard this, he was also very interested: "Huh? Lao Cai, you have thought about it so far in advance? Tell me about it."

The leaders in charge of this aspect originally asked that we should not always copy other people's things, but should copy as little as possible, only copy one model, feel the basics, lay the foundation for independent research and development, and then try to develop our own models.

The first generation of ballistic missiles that we successfully copied was never put into service. The one that eventually entered service was a self-developed model that was improved on its basis. We can only say that we had high aspirations from the very beginning and were aiming for self-reliance.

However, to be on the safe side, the completed imitation work must not be discarded rashly, so Mr. Cai’s suggestion is to proceed on both paths simultaneously.

Mr. Cai then told me what Gao Zhendong said at the dinner table that day, and then added: "What Director Gao said while drinking reminded me that we were not very satisfied with alcohol. The North chose alcohol for antifreeze, but this does not mean that we must follow suit and choose alcohol. After all, the calorific value of alcohol is not high, and its storage performance is really too poor."

The alcohol used in this northern model, in fact, has another reason besides antifreeze. It is also an imitation or in other words, an in-depth development of the original model. Its earliest technical prototype comes from Hans Cat's famous V-2, the world's first actual combat ballistic missile.

The fuel of V-2 is alcohol. The reason for this is probably that when V-2 was formed, the resources of Hans cats were almost exhausted. Petroleum products were used to feed their "armored zoo", and the missiles had to eat vegetarian food.

After listening to Mr. Cai, the chief engineer asked, "So, you want to use kerosene?"

President Cai nodded and said, "Yes, kerosene is very close to alcohol in terms of density, so many original designs related to weight and density do not need to be changed drastically and can be changed very quickly. At the same time, compared with gasoline, it has the advantages of high flash point and low ignition point, and its safety and starting 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, making it a relatively good aerospace fuel."

Contrary to the first impression, kerosene's ignition point is actually lower than 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 temper.

The ignition point of kerosene is about 80 degrees, while the ignition point of gasoline is more than 400 degrees. The reason why gasoline is flammable in daily life is because it is highly volatile and has an extremely low flash point.

The freezing point of kerosene is generally below minus 30 degrees. Although it is not as good as the minus 100 degrees of alcohol in our environmental conditions, it is basically enough. At most, we can add some anticoagulant.

Combined with other advantages, kerosene has always been one of the important fuels for aerospace, especially since the jet age, when kerosene basically dominated the aviation fuel market and was also widely used in aerospace.

The chief engineer was also familiar with these and nodded: "Your consideration makes sense. We can't be constrained by the original model. We need to consider improvements in advance."

Mr. Cai pointed to the tungsten-molybdenum alloy data on the table and began to talk about the current advantages: "Of course, kerosene has a high calorific value, which will bring many design problems. The high temperature and pressure put forward more stringent requirements on the materials."

"But I've thought about 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 in designing better liquid fuel engines."

Pointing in 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 designer thought for a while and asked, "Are you sure? After all, this will be a huge workload for you."

Mr. Cai nodded: "We have a good chance of success. After all, kerosene and alcohol are very similar. 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 the decision: "Let's do it. Write a report. I don't believe we can let them suffocate to death."

The second half of the sentence refers to the comrades who came to support us from the north. They really helped, but they were also really conservative.

Besides, at this time, they are about to leave, so they have to consider becoming self-reliant.

After talking about this, Mr. Cai talked about another idea of ​​his.

"Guess who else I met when I went to the capital this time?"

He said this without any beginning or end, so the chief engineer naturally couldn't guess: "Who?"

President Cai pointed in the direction of DJS-59 and said, "You'll never guess who the researcher of that computer is."

The chief designer smiled and said, "Who is it? An old acquaintance of ours?"

With Mr. Cai's question, he could only guess in this direction.

Mr. Cai shook his head: "No, he is the researcher of this material."

He pointed to the information on tungsten-molybdenum alloy materials, then smiled and waited for the chief designer's response.

As he expected, the chief designer's eyes widened: "This? Impossible? Can these two things be made by the same person?"

President Cai nodded: "Not only that, he also made great efforts in our high-performance graphite throat lining material and gave a lot of guidance to the Carbon Research Institute."

The chief designer resisted the urge to swear: "Totally unexpected, totally unexpected."

President Cai said: "I was thinking about something. I remember that we conducted a simulation test of computer navigation on the DJS-59."

He is not responsible for navigation, but he still knows these things.

The chief designer nodded and said, "Yes, and the effect is very good. Unfortunately, although the DJS-59 is very compact, it is still a bit large for this purpose and consumes a lot of power. It has a great impact on the overall design, so we have to put it aside for the time being."

In fact, he also felt very sorry about this matter. When it comes to loading missiles for DJS-59, both the size and power consumption are just stuck at a decent size. There is hope, but it is difficult, which makes people very uncomfortable.

The navigation of missiles now uses platform-based inertial navigation. Simply put, an inertial platform with a gyroscope as the core is used to measure the angular velocity and acceleration of an object. The attitude and heading of the object can be obtained, and then the navigation control signal is output through computer solution or comparison.

In simple 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 depends mainly on the inertial platform, but it is also closely related to the computer.

The computers here may be analog or digital. The digital computer DJS-59 undoubtedly has better features in most aspects, but it cannot be used.

Mr. Cai said: "So I was thinking, can we apply for a permit and discuss related matters with this comrade, such as improving or shrinking the DJS-59 to make it more in line with our requirements. After all, it is a pity to have a good thing that cannot be used. Even if it is not used on this imitation model, it is also good to use it on the subsequent self-developed model."

The chief engineer had no doubts about this, but had one question: "This is easy to handle. I'll submit a report and give it a try. It should be fine."

Mr. Cai smiled and said, "That's not necessarily true. If we want to reveal our stuff to him, we need permission. At the same time, if we want to discuss this kind of thing with him, we also need to apply for permission."

After saying that, he reiterated that before the Carbon Research Institute disclosed the relevant information about Gao Zhendong to him, it had first consulted the Defense Work Committee.

The chief engineer's eyes widened. He had not expected this. "There is such a thing? It seems that this comrade is not simple."

Turning around, I saw the tungsten-molybdenum alloy data on the table, and then thought about the DJS-59 in the computer room next to me, and I couldn't help but laugh. This is nonsense. How can such a person be easily dealt with? Isn't it almost the same treatment here? Why can't others have it?

(End of this chapter)