The military-industrial scientific research system of the academic master.

In fact, after the ideas were opened up, the progress of the project was much more optimistic than everyone, including Chang Haonan, expected.

This is determined by the principle of optical signal propagation.

The speed of light is constant, which is one of the most basic laws of the universe.

In daily life, electrical signals and optical signals can basically be considered to be transmitted "instantaneously".

Moreover, if the electrical signal exists in a complete vacuum and in the form of electromagnetic waves, it can indeed be equal to the speed of light.

But if you look deeper, it's not the same thing.

In practical engineering applications, electrical signals often rely on electric current to be transmitted in the medium.

When the medium is a single copper or silver wire, electrical signals can travel at about two-thirds to three-quarters the speed of light.

Still not much difference.

However, it is obviously impossible for the conductive medium in a complex system to have only one wire.

Various electronic components can have a negative impact on the conduction of electric current.

The end result could even be one or two orders of magnitude slower than optical signals.

Therefore, the project team simply replaced the cables in the prototype with optical fibers and replaced the supporting equipment accordingly, which greatly reduced signal delay and distortion.

For picosecond lasers, this is already a barely usable level.

At least it can allow other teams to advance the project as planned and put the results on the prototype for actual testing.

Instead of everyone stopping and waiting for Huo Penghua's progress.

This also made all the technicians involved in the research and development feel relieved.

Especially Chang Haonan.

Last year, he was able to remain in seclusion for a month or two, exchanging only minimal information with the outside world. That was because there were neither major project milestones nor any changes in the situation that required special attention.

But now it is 2001.

The times have changed.

The current month of March is still relatively calm, but if nothing unexpected happens, the next three quarters can basically be said to be full of big news.

There are roughly four or five models related to Chang Haonan alone that are planned to be mass-produced this year or delivered in small batches to the troops for trial.

Not to mention the incredible work that was done in the second half of the year——

Although the current timeline has deviated slightly compared to the previous life, whether intentionally or unintentionally, Chang Haonan has avoided exerting too obvious influence on the Middle East over the years.

Just waiting for this wave.

Therefore, as the main leader of the Aviation Power Group and a person who can also influence policy directions to a certain extent, he must be able to do many things at the same time.

Ultrashort pulse laser processing is the biggest project he is currently working on, so it is always good to save some energy from it.

And it seemed to confirm this idea.

In late March, Chang Haonan, who was busy with the project, received two invitations.

The first one comes from Qinfei Group.

The KJ-200 early warning aircraft has completed most of the national certification projects.

Taking into account that the remaining parts are to examine the adaptability under extreme weather conditions, it is necessary to wait for the time window to appear before proceeding, and the assessment content is only related to the airborne equipment and does not involve the flight safety level, the superiors decided to deliver the KJ-200, which was converted from a verification aircraft to a prototype and then to a mass production prototype, to the air force in advance for trial.

As the deputy chief engineer of the project, Chang Haonan almost never showed up during the research and development process, but at least participated in the preliminary research and overall plan determination before the project was launched, and was naturally invited to attend the delivery ceremony.

Originally, this should have been a good thing.

Chang Haonan didn't mind spending two or three days to go to Nanzheng.

However, just when he had arranged his schedule and was ready to reply to Qin Fei Group, he received another invitation from Shengjing.

The content... is similar to the previous one.

The J-11B, which has been talking about going into trial production since the second half of last year, has finally accumulated the 6 WS-12A engines needed for six aircraft and can be delivered to the troops...

"so good……"

Chang Haonan looked at the two envelopes in front of him and suddenly had a wonderful feeling that "the children have grown up".

After all, these two projects are typical examples of "he was involved in them but was not directly involved, and they were completed successfully in the end."

This is also the situation that Chang Haonan most hopes to see.

The only problem is-

Although they were not scheduled at the same time, they were just one after the other...

This cannot be entirely blamed on the arrangements made by the aviation industry.

When it comes to the delivery of mass-produced machines, Party A actually has the final say.

Although the People's Liberation Army does not engage in feudal superstition, it is obviously a routine operation to choose a commemorative day for important events.

Of these two models, one was delivered by Qinfei Group to the Navy, and the other was delivered by Shengfei Group to the Air Force...

Logically speaking, there should be no impact on each other.

Therefore, both sides chose March 3th as the date.

That was the day when the large-scale exercise in the southeast direction ended five years ago.

The meaning behind it is self-evident.

It’s just a pity for Chang Haonan who was also invited.

For the first time, the Navy had its own early warning aircraft.

For the first time, the Air Force had a completely domestically produced third-generation fighter.

Two happy things coincided...

Why did it become...

cough cough...

Fortunately, the delivery ceremony of KJ-200 was in the morning, while that of J-11B was in the afternoon.

It can be considered as creating a time difference.

……

Chang Haonan flew from Beijing to Nanzheng the day before, on the afternoon of March 3th.

Accompanying him was Zhang Hongbiao, one of the deputy directors of the Science and Technology Commission.

The two of them are old acquaintances.

They had previously attended together the celebration ceremony for the C808 aircraft's completion of its certification test flight.

"Will you return to the capital tomorrow afternoon?"

When the plane was about to land, Zhang Hongbiao asked Chang Haonan.

"No return."

The latter shook his head expressionlessly:

"After attending this game, I will immediately go to Shengjing to attend the next one..."

This answer made Zhang Hongbiao stunned, and then he couldn't help laughing:

"Yes, I forgot that the delivery of the J-11B is also tomorrow."

Chang Haonan's face was filled with black lines, and he held his forehead and sighed:

"So you don't have to go there?"

"Need not."

Zhang Hongbiao was still able to keep his expression straight, but his tone inevitably revealed a hint of gloating:

"There is only one of you in China, but our Science and Technology Commission has more than one deputy director. There is no need to bother me... Shengjing is always worried about the past."

At this point, his tone suddenly changed:

"This trip was Lao Huai's own request. He said he wanted to take a last look at the projects he had worked on before retiring..."

Lao Huai naturally refers to Huai Guomo.

Deputy Director in charge of external technical exchanges.

He was also one of the first leaders of the Science and Technology Commission that Chang Haonan came into contact with.

He was deeply involved in the original negotiations with Sukhoi on Project 11.

It includes the details of the two tasks of introducing the production line and cooperating to improve the aircraft structure.

Now the J-11B has been successfully delivered. Although it is only a trial production batch, it can be regarded as a successful conclusion of the entire project.

When Project No. 11 was signed, even Huai Guomo himself could not have imagined that he would be able to see this day before retiring.

After all, to produce a heavy third-generation aircraft from scratch, it is necessary to make improvements on this basis.

At that time, it seemed that it would have to be a long-term project with a cycle of 10-15 years.

By the time Huai Guomo retired, all of Chang Haonan's team, except Ding Gaoheng, had retreated to the second line or simply retired.

As for Ding Gaoheng...

Judging from the current situation, there should be a possibility of taking another step forward in two years.

Of course, whether it can be successful depends not only on Director Ding’s own efforts, but also on Comrade Xiao Chang’s progress in pushing the timeline forward…