The military-industrial scientific research system of the academic master

In fact, by this time, Chang Haonan had laid all his cards on the table——

Even the top priority solid rockets and modular satellites have been put on display at the Singapore Air Show.

But one of them is a small scale model, and the other is even just a display board.

According to past experience, this display method often means that the character has not yet been revealed, so the very few people who are attracted to the attention are all like Tim Purdy, who regard this thing as a ballistic missile. Missile, so come and watch the fun.

Only a certain big business owner asked very seriously whether he could purchase a few of them in the name of launch vehicles and then make modifications on his own after returning home.

Finally, the answer was taken as a matter of course: no.

After all, China today is no longer short of the billions of dollars in cash it had back then, and the sensitivity of long-range missiles that can hit about 8,000km is not comparable to that of the intermediate-range missiles back then.

But apart from an inconspicuous episode, this rocket model, which had not yet been officially named, did not receive much additional attention.

The few media outlets that reported on the Chinese delegation only mentioned a few words at most, and believed that this may be a sign that the Aerospace Science and Industry Corporation has returned to the orbital transportation business and is preparing to compete with its brother units after the split of the Aerospace Corporation. Such an omen.

It should be said that their guess was not wrong.

I just completely underestimated China’s efficiency...

…

August 15, 2006.

In a final assembly workshop affiliated to the Aerospace Science and Industry Corporation.

Just like every normal working day, a group of technicians wearing full protective work clothes and whose faces were completely invisible filed in through the door.

But judging from the several cameras following around and the way people gathered immediately after entering the door, this should be a pre-arranged leadership visit.

The two people walking at the front of the entire team, clearly separated from the others, were Chang Haonan and Yin Liangxing.

In the workshop behind them, three missile-shaped objects with similar overall appearance were lying flat, with only the heads being obviously different.

The body of one of the missiles is still divided into three parts, and the outer shell shows a slightly shiny metallic color, which is obviously still in the final assembly preparation stage.

But the other two, which are slightly "top-heavy", have been basically assembled into complete units.

However, it is not painted in dark green or black like common ballistic missiles. Instead, it uses gray and white paint that is less common in this era.

Moreover, on the fairing, which is obviously thicker than the missile body, there are two Aerospace Science and Industry Corporation logos and two national flags painted on it.

Obviously, this is not how ballistic missiles deploy.

"Chief, these two are the 'Kuaizhou-1' solid launch vehicles we developed specifically for this type of fast launch mission with short preparation time..."

As the host, Yin Liangxing first introduced the situation:

"Of course, as you can see, this model is actually developed on the basis of the Dongfeng 31 missile. The Yao-1 on the left, which is planned to be used to carry out space fishing missions, is directly derived from a Dongfeng missile that is about to roll off the assembly line. 31 missile modified.”

“In order to improve research and development efficiency as much as possible and ensure the referability of launch data, the first two stages of the rocket basically remain the same at the hardware level, only the third stage and the upper stage have been redesigned... As for the more specific situation, it is still determined by Academician Chang came to introduce.”

Chang Haonan was about to speak according to the pre-rehearsed steps, but was interrupted by the leader who was walking at the front waving his hand:

"I read the report Liangxing submitted before, saying that the launch of this model can provide experience support for future improved Dongfeng 31 missiles?"

Yin Liangxing, who had already taken a step back, had no choice but to answer again:

"That's right. We hope that on the Dongfeng 31A, we can not only improve the range level, but also achieve a leap in circular error probability (CEP) to improve the strategic deterrence of nuclear counterattacks."

"But even if Academician Chang develops a new energy management algorithm, in order to ensure sufficient reliability, a large amount of actual measurement data still needs to be obtained. For my country's current national conditions, frequent test launches of ballistic missiles are politically and economically None of them are allowed, so we proposed to accumulate launch experience and parameters in the name of rocket launch... Of course, we will also compensate some funds to support the research and development of missile weapons. "

The chief nodded and did not ask any more questions immediately. Instead, he went to the junction of the second and third stages of one of the rockets and looked at it carefully for a while——

Compared with the Dongfeng 31 missile installed with a pointed cone fairing a little further away, the details of the connection between the two Kuaizhou-1 missiles are obviously different.

"Reporting to the chief, this is a technology verified for the next generation of intercontinental ballistic missiles..."

Seeing that the leader was interested in this, Chang Haonan immediately changed the pre-arranged order and introduced to the other party:

"The inter-stage separation technology we currently use on missiles is similar to that of launch vehicles. They use explosive bolts as connecting devices and reverse thrust engines as power sources. This technical solution has large separation power and high action reliability, but the explosive power of gunpowder Uncontrollable, not only is it difficult to achieve precise control of the separation force, but it will also interfere with the flight attitude of the rocket, especially the three-stage rocket.”

"In order to ensure the accuracy of the Kuaizhou-1 hit... into orbit, we adopted a cold separation scheme with spring separation push rods, and the residual thrust of the lower stage was considered at the beginning of the design to avoid another 31 prototype bomb test. A rear-end collision accident involving a separated body occurred during the shooting process..."

"..."

After Chang Haonan finished introducing all the contents, the leader had already led a group of people to the end of the two rockets.

"Is there no change in the performance of the propellant?"

Compared with the basic model, the core appeal of Dongfeng 31A is still to increase the range.

After all, if you can't reach the target, no matter how accurate you are, you can only watch.

"Yao-1 and Yao-2 still use the same propellant configuration as the Dongfeng 31 basic model, but at the software level, the new energy management system allows a sliding section to be added between the first and second stages for work. Online flight trajectory optimization can broaden the launch window and improve the position accuracy of the rocket during inter-stage separation. "

"It is expected that starting from Yao-3, it will use the same new solid rocket motor and next-generation solid propellant as Dongfeng 31A... However, this type of solid launch vehicle is mainly used to launch small or micro satellites in low orbit, so it is not suitable for carrying The improvement of abilities is not urgent.”

The chief nodded and did not ask any new questions for a while.

This is a signal.

A signal for others behind you to speak.

"Comrade Haonan, what is...the position accuracy of the rocket when it separates between stages?"

Since this rocket is related to the new generation of intercontinental ballistic missiles, Jing Zhiyuan, the head of the Second Artillery Corps, is naturally the most concerned.

"Well……"

Chang Haonan organized the language a little:

"That is to say, each stage of the rocket can be made to fall to a more accurate position after separation, so as to avoid the situation where the landing area is too large and the debris destroys the house of the fellow villagers... You know, solid propellant is not as good as liquid, even if There may still be danger after burning out..."

In fact, this upgrade was done by him smoothly.

For ballistic missiles, or for that matter any solid rocket, there's nothing particularly obvious about it.

But it is the front-end technology for rocket recovery and reuse.

It's just that this matter is too long-term at present, so Chang Haonan is not ready to draw a cake for the time being.

Save others from worrying about you.

As expected, Jing Zhiyuan didn't ask any more questions. The test launches of their ballistic missile units were basically carried out in no-man's land or directly to the sea. There was no need to consider the situation of destroying the houses of fellow villagers.

Instead, another thing is more important.

"Comrade Liangxing said just now that he hopes to make a leap in the circular probability error of Dongfeng 31A..."

When he said this, Jing Zhiyuan's eyes lit up:

"Then if a large enough amount of data can be accumulated, theoretically, to what extent can this error be reduced?"

I really just asked him.

Not long ago, Chang Haonan just took advantage of his free time to conduct several simulation evaluations with the Second Academy of Aerospace Science and Industry and the Ninth Academy.

"Ideally, a CEP of about 50 meters can be achieved..."

He paused briefly:

"In other words, Dongfeng 31A will have a certain ability to carry out a nuclear strike mission, directly threatening the enemy's reinforced nuclear bomb silos..."