The old guy mentioned by Dean Ji is naturally Du Yishan.

And the old man's student is undoubtedly Chang Haonan.

If it is left on hold, this kind of cooperation, even if it is carried out across schools, is not particularly complicated, but there will be some entanglements in the ranking of the final results contribution.

But the problem is that Chang Haonan and Yao Mengna, the two people who are best at numerical simulation, have been highly bound to the 83 Project.

Even now they are dealing with the turbojet 14 engine.

Since Yao Mengna's research on the cracks of compressor blades was carried out in private, no one else knew that the mediocre article published on the aerodynamics treasure had entered her field of vision, and it would definitely soon enter the field of vision of Chang Haonan and Yan Zhongzhong.

Du Yishan quickly found Liu Zhenxiang, who has been deeply involved in the field of aviation power for many years.

Although the research focus of the latter in the past ten years is actually on aero-engine test and simulation equipment, rather than on aviation engine itself, it is still very clear that the potential of Yu Fei's research direction is still visible.

Of course, the word potential alone is definitely not enough for Yu Fei to directly join the 83 Project.

Chang Haonan was personally recommended by Du Yishan, and only by solving the wing flutter problem for the Xinzhou 60 did he pass the audit and become a member of the core circle of the entire 83 project.

You must know that on the second day after he and Yao Mengna arrived in Shengjing, they were able to participate in the project progress seminar by Lin Xiguang.

These kinds of meetings seem to be very frequent and inconspicuous, but there are still a few people who can actually attend.

Even many engineers from the 601 or 606 institutes who are not deeply involved in the 83 project do not have such a high right to know.

Therefore, after discussing with Liu Zhenxiang for a period of time, they still decided to let Yu Feixian participate in the form of peripheral researchers.

In other words, he can cooperate with Chang Haonan (or Yao Mengna), but he will not join the project team for the time being, and the confidential information above a certain level involved in the scientific research process needs to be declassified before it can be sent to him.

……

Although the 83 Project is advancing at an unprecedented speed, there are some things that will come faster.

5th Radar Regiment of the Aviation Forces of the East China Sea Fleet.

"Report to the battalion commander, that signal has appeared again!"

A radar soldier shouted excitedly behind him.

The major officer, who was resting on the table, suddenly came to his senses when he heard this, rubbed his bloodshot eyes, and came behind the radar soldier.

On the circular display of the early warning radar, an echo signal appeared hovering about 150 kilometers beyond the coastline.

"Still no transponder?"

An aircraft transponder is an electronic device mainly used in air traffic control, which automatically responds when it receives a radio interrogation signal, allowing the secondary radar on the ground to know the position of the aircraft.

According to the regulations, when the aircraft of a civil aviation flight is in the air, it must turn on the transponder.

"No, it's on the last few routes."

This strange plane is not the first time it has appeared.

Based on the experience of the battalion commander, even with such an old-fashioned radar, he can judge that it should be a Boeing 707.

And on the previous few occasions, it flew on the route from Tokyo to Manila in a regular manner, except that it did not turn on the answering plane, and its performance was no different from that of a civil airliner.

The commander of the radar battalion, of course, also considered that it was possible that this was a reconnaissance aircraft.

After all, disguising a reconnaissance aircraft as a passenger plane, or using fighter jets to cover the airliners, is also a common tactic of the air force of the NATO system - in most cases, the reconnaissance side does not have the guts to fire at such a target.

However, the common P3C near the eastern sea cannot fly to this speed, while the E3 early warning aircraft or RC135 reconnaissance aircraft will have a larger echo signal because of the obvious change in appearance.

The battalion commander really couldn't think of anything other than a Boeing 707 for a while.

So the superiors just told them to pay more attention to it and report it if there was any abnormal movement of the plane.

Of course, for similar situations, the safest way is, of course, to take off the fighter jet for visual tracking confirmation.

In this way, it is possible to accurately pinpoint the situation and to deal with possible unexpected situations on the spot.

Such as dispersion or interference.

But for the aviation units of the 80-90s, even such a seemingly simple thing as an emergency take-off in the face of the air situation was not easy to organize.

Whether it's the aircraft completeness, pilot experience, or the capability level of the ground handling units, the sortie speed of the aircraft will be limited.

Of course, there is another important reason, and that is money.

The aviation units do not have enough funds to maintain 1-2 aircraft in a hot state at any time on standby.

Therefore, by the time the aircraft is ready for take-off, the target aircraft is already far from the coastline.

Today, however, the situation has changed.

"Battalion commander, that plane has deviated from its course." The sharp-eyed radar soldier was the first to notice the anomaly in the position of the target on the display:

"It seems to lower its altitude and then ...... Start turning back?"

"This is not a turnback...... "After all, the battalion commander is still well-informed, and he knows that this zigzag route is either anti-submarine or reconnaissance.

Obviously, it is impossible to have an aircraft anti-submarine at an altitude of 9000 meters.

"Keep your eyes on the target, I'll report to my superiors!"

The battalion commander pulled his military cap out of the rank under the shoulders of the camouflage uniform and put it on his head, and quickly ran out of the command room.

In an age when even the concept of flat command was immature, the chain of command under normal circumstances was quite complex.

Fortunately, this is not the first time that the plane has appeared, and the aviation units of the East China Sea Fleet can be regarded as making some preparations for dealing with it within their capabilities.

That plane had been hovering around that location.

It's just that every 180° turn you make will get a little closer to the coastline.

This gave naval aviation units a chance.

About 20 minutes later, two J-7HH fighters, each carrying a Thunderbolt-8 air-to-air missile, took off one after the other and flew quickly towards the coastline in the east.

The J-7HH is actually a J-7B that can carry Thunderbolt-8 missiles and has been modified for use in high-salt environments.

Naturally, there is no radar, and pilots can only search for targets with a pair of eyes, and they are highly dependent on ground command in the course of operations.

The early warning radar of the VHF frequency band has a long enough detection distance and even has a certain anti-stealth capability, but the detection accuracy is indeed not ideal.

In addition, there is no data link, and there is an error in relying on voice guidance.

Therefore, after guiding the two J-7s to the vicinity of the target, the rest of the work can only be left to the two pilots themselves.

Thankfully, they had a bit of luck today.

The weather was sunny and cloudless, and the position of the sun was favorable.

After about 10 minutes of searching, the wingman pilot Chen Haisheng suddenly saw a dazzling reflection of the metal skin in the light at the low 8 o'clock of his plane.

"I saw it!"

About Updates:

I've been out on a business trip for the past few days, so I can only watch two shifts a day for the time being, and there should be another wave of shifts when I go back next week.

Also, I'm thinking about whether to centralize the update time around 5 p.m.

(End of chapter)