The military-industrial scientific research system of the academic master

I don’t know which of the couple had the upper hand, but in short, the U.S. Air Force really arranged the first flight test of the X51A on April 20, 2007.

It happened to be 100 days after Chang Haonan's daughter Chang Qihe was born.

After learning the news, Chang Haonan only made one comment:

"They are pretty nice people..."

There is actually a little episode about the child's name.

Influenced by the experiences of many seniors and colleagues, Yao Mengna warned many times during her pregnancy that Chang Haonan would never be allowed to name her child "Chang Gaochao" or something similar.

This is definitely not an unfounded worry caused by pregnancy anxiety.

In fact, one of their colleagues was named Lin Fusion, because when this person was born, his father happened to have just participated in the development of China's first hydrogen bomb...

Fortunately, Chang Haonan doesn't have this kind of obsession project that takes a lifetime to complete, so he doesn't need to commemorate anything with his child's name.

In the end, with Du Yishan's suggestion and Zhou Li's approval, Chang Qihe was chosen as the child's name, which means "Qihe soars into the open clouds and soars high in the sky."

However, compared to the couple who just regarded the matter as an episode, the X51A, as the world's first publicly weaponized hypersonic aircraft, attracted considerable attention for its first test.

At this time in 2007, the scale and business model of the Internet industry were gradually beginning to mature, and some push algorithms similar to later hot searches had been facilitated.

Compared with the passive information transmission channels based on forums in the early years, this type of algorithm will actively put information in front of users.

Many topics that were originally only concerned by specific groups of people will be promoted to more people as long as there are enough clicks and discussions, thus forming positive feedback, gaining more clicks and discussions, and then entering the next cycle. .

Just because there is currently a lack of lightweight platforms like Weibo or short videos, they can only be presented through search engines or web navigation.

But even so, for traditional media, it is a general blow to dimensionality reduction.

Many TV programs that respond quickly have begun to formulate themes based on Internet popularity, and then use their resource advantages to hire some professionals to win with in-depth content.

Although only some of these guests are experts and most can only be regarded as "experts", it does not affect people's enthusiasm for watching this type of program.

Even Chang Haonan, who can really say "No one knows hypersonics better than me", is not immune. During his paternity leave, he often turned on the TV to see how the outside world analyzed and evaluated these things related to the project at hand. .

Perhaps because this hobby is indeed a bit strange, more than one person has expressed confusion about it.

Among them was Zheng Liangqun, who took advantage of the double happiness of little Qihe’s birth and the coming of the Spring Festival to come to Chang Haonan’s house to congratulate——

He put the gifts he brought at the door, and before he took two steps, he saw an evening military program analyzing the feasibility of "conquering the world within one hour" playing on the TV screen.

Then as expected, he showed a shocked expression, and even his eyes widened.

After being stunned for a while, he said with confusion:

"I'm not saying... is there anyone on earth who knows better than you whether this is feasible or not?"

"Hey...just look at the problem from a different perspective."

Chang Haonan poured tea and motioned for the other party to sit down:

"What if I can hear something new? It won't take much energy anyway..."

In fact, he also thought about his somewhat inexplicable hobby.

The final conclusion is that it is probably equivalent to the fact that some public figures in later generations like to conduct high-intensity self-searches.

Human nature.

Zheng Liangqun shook his head and said half-jokingly:

"It seems that I will have to find an instruction from the publicity department after I return, telling the researchers below to pay attention to accuracy when participating in this kind of publicity in the future. There may be an academician in the audience, so be careful..."

After hearing this, Chang Haonan just smiled and placed two cups of tea in front of the two of them. Then he did not continue on this topic, but changed the topic:

"I said, Lao Zheng, you came to me specifically at this time, I'm afraid you don't just want to have a casual chat..."

Due to the achievements accumulated during the bat hunting program and the 50th anniversary of the National Day military parade, Zheng Liangqun was successfully promoted to chief of staff of the Air Force a year ago.

Of course, the fact that he and Chang Haonan were so close that they came to congratulate each other without even saying hello had nothing to do with this appointment.

After all, in the latter's current circle of friends, a military chief of staff is really not ranked high.

But because Chang Jiayao and Zheng Hui have reached the stage of discussing marriage, they are waiting for both of them to have free time to get the certificate, and then find a good day to hold the wedding.

In fact, logically speaking, my soon-to-be brother-in-law's father should be considered an elder.

However, it was too early for Chang Haonan and Zheng Liangqun to meet each other. At that time, they were still humble people, and they were already used to being treated as equals...

So the most embarrassing person here is Zheng Hui——

"My wife's brother and my dad are considered brothers. What should I do? I'm waiting online. It's very urgent..."

In the end, we can only discuss things on their own terms.

After hearing Chang Haonan's words, Zheng Liangqun showed an unexpectedly sad expression:

"What are you talking about? Can't I just come here to see... and see Qihe?"

He originally wanted to see his eldest niece.

But if he says this, Chang Qihe will have to call Zheng Hui brother and Chang Jiayao sister-in-law from now on...

"It's all because this guy is too young...otherwise there would be such a messy relationship."

Zheng Liangqun told himself this in his heart.

Chang Haonan curled his lips, not believing the other party's excuse at all, and pointed to a few boxes placed not far away:

"Here, these are all things that your Air Force issued during the Spring Festival. I'm afraid they were just brought over from the office... You told me that you came here specifically to see Qihe?"

"Well indeed..."

Zheng Liangqun, who was exposed by one sentence, was not embarrassed at all and directly lowered his voice and got to the point:

"It really has something to do with the hypersonic vehicle that the Americans are preparing to test launch."

Chang Haonan stopped picking up the teacup:

"In fact, there is no need to worry too much... Although hypersonic weapons are a great threat, I can guarantee that within five years at most, your H-6 will be equipped with mass-produced air-breathing hypersonic weapons earlier than the US military's B52."

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Zheng Liangqun waved his hand and explained in a deep voice:

"It's not that you're worried, everyone is relatively optimistic about your work efficiency... It's just that the higher-ups hope to take this opportunity to let Americans actually experience what it's like to be watched all the way through weapons testing."

As a ruthless man who had personally shot down a MiG-25 while flying a plane, he said these words with great momentum, and in the end he slapped the armrest of the sofa fiercely.

It's as if the words "The enemy can go, I can go too!" may pop up at any time!

Chang Haonan also became interested instantly and sat upright:

"Keeping a close eye on you...meaning you're going to follow this test all the way?"

According to public information from the Pentagon, this X51A flight test will be conducted over the Pacific Ocean.

If you want to conduct reconnaissance, it means sending a complete fleet out of the first island chain.

This is different from usual training or overseas visits.

It is a real combat mission, but no conflicts are expected.

The last time China did something like this can even be traced back to the 580 mission more than 20 years ago.

"The specific mission objectives have not yet been determined, but at least one key part must be captured. Of course, it is best to be able to track the entire process..."

Zheng Liangqun touched his chin and organized his words a little:

"It's just that we have never done anything similar in the past, so the comrades from the Navy asked me to ask you whether you can rely on up to two 052C destroyers when the target is not cooperative and there may even be interference. Complete the observation of the entire test launch process?”

After I finished speaking, maybe I felt that it was not clear enough, so I added another sentence:

"Although I am not a navy, I have flown fighter jets in my early years and know a bit about radar. They are mainly worried about the black barrier shielding layer produced by hypersonic aircraft and the Doppler dispersion problem..."

Since various technologies have not encountered any insurmountable obstacles, and the economic development has far exceeded expectations, the Navy has also had a number of new ships with good performance in recent years.

The first two 052Cs in service have undergone sailing tests totaling tens of thousands of nautical miles, verifying the stability of the new power system with QC300 as the core, and gaining opportunities for the construction of a second batch of up to six ships of the same type.

This is also the confidence to carry out this ocean mission.

After the brief excitement, Chang Haonan regained his composure and did not give a clear answer immediately.

After a few minutes, he slowly spoke:

"The verification speed of X51A is about Mach 6. There is no need to consider the issue of black barrier shielding. As for Doppler dispersion..."

He thought for a moment more:

"This is true... According to our research, when the Doppler dispersion product is greater than 1, the output gain of the matched filter will decrease, the main lobe width will become wider, and the target resolution performance will decrease... For the atmosphere below 30,000 meters For the flight target, this critical value is about 2000-2500m/s, which is very close to the flight speed of the X51A. Considering that the other party may interfere, our fleet cannot be too close to the test area..."

"That……"

Zheng Liangqun showed a bit of eagerness on his face, obviously he couldn't wait to hear the results.

"I suggest adding a submarine to the fleet..."