After determining the target position, the two planes carried out a roll and detachment synchronously, and soon came to the vicinity of the suspicious aircraft, and as they had usually trained, they sandwiched the target in the middle of the left and right to confirm the accompanying flight.

"Eagle 01 reports, we found a ......" Lin Kang, the pilot of the long plane, looked at the plane not far away through the cockpit glass with a narrow field of vision.

On the surface, it looks like a regular Boeing 707, but the Star-Spangled Banner on the vertical tail and the prominent letters "WR" below the flag undoubtedly indicate that it belongs to the U.S. Air Force.

Although the entire Chinese air force did not have a serious special aircraft at this time, Lin Kang, who had served for nearly 20 years, never gave up using various channels to collect all kinds of information about the imaginary enemy air force.

Although this is supposed to be the job of the intelligence service, not the fighter pilot.

This gives him some relatively distinct advantages when performing similar companion verification missions.

For example, at this moment, he knows that "WR" represents the opponent's 93rd Air Control Wing from Georgia.

But he did not search for a similar model from memory.

After lowering the height slightly, Lin Kang finally saw the huge long fairing under the belly of the opponent's plane.

"A reconnaissance aircraft of the Boeing 707 platform, it should be an electronic reconnaissance model, but not RC135, this is the first time I have encountered it."

"Understood, stay with the company, and report back if it makes any further moves."

A slightly nervous voice came over the radio.

In fact, if it weren't for the almost skin-rending clash at the beginning of the year that woke some people up, they might not even have taken off this emergency takeoff in the face of aerial reconnaissance.

In fact, the Chinese army, which is relatively immature in the field of naval and air confrontation, is not ready to face similar incidents in terms of technology and experience.

Like Lin Kang's generation of pilots, they are not lacking in courage.

But there is only courage.

Courage alone is not enough.

The situation in the air and sea domain is much more troublesome than in the well-defined territorial borders.

The legal status of the skies over the exclusive economic zone is a rather complex issue.

There is no doubt that this is not airspace.

The relevant provisions of international law stipulate that flying or navigating in this area must respect the sovereignty of the other country, national defense and security, etc., but these vague and metaphysical provisions are not operational.

Therefore, when faced with similar situations, the general approach adopted by States is to use non-military means to interfere and expel them.

Non-force means.

It sounds harmonious and a lot safer.

But just like in martial arts, the realm required to open mountains and crack rocks is often not as easy as retracting and retracting, and in practice, it is much more difficult to shoot down the target than to shoot it down.

The plane, after making a 180° turn, remained on its original course.

"Request interference with the target's flight path!"

Lin Kang whispered into the radio.

Whether from the point of view of national dignity or from the point of view of intelligence security, he was not willing to let such a reconnaissance plane fly for a long time at a distance of more than a hundred kilometers from the coastline.

There was a rustling sound in the headphones for a few seconds, followed by a calm voice.

"Request approval, but the other party has not entered the airspace and cannot use weapons!"

Lin Kang naturally understands the relevant principles, but the commander of the 4th Division of the HNA on the radio station is still worried that the best pilots under his command will be impulsive, so he specially emphasized it again:

"Also, be sure to keep yourself safe!"

Lin Kang's mind flashed like a marquee, and many cases that he had seen in books or internal materials flashed in his mind.

Most of them came from the Soviet Air Force.

In addition to more extreme cases such as the Barents Sea scalpel, there were naturally other ways to deal with the unusually experienced Soviets in the face of provocations by NATO air forces.

For example, in heavy aircraft such as the Su-27 or MiG-25, when two engines with a total thrust of more than 20 tons are turned on, the air flow will affect most aircraft.

Lin Kang didn't know if he could do it with this small plane, but he decided to give it a try.

After a brief communication with Chen Haisheng on the other side, he adjusted the position and attitude of the plane, and pushed the throttle stick to the end with his left hand.

The turbojet 7BM is really not a high-performance engine, and the number displayed on the tachometer increases unhurriedly, which makes the J-7's action as it passes next to the reconnaissance plane almost not aggressive.

Lin Kang also maneuvered the plane to fly in front of the target, but the afterburner thrust of 6.5 tons was really difficult to effectively interfere with an aircraft on the Boeing 707 platform.

Correspondingly, in the cockpit of the E8C, the atmosphere is much more relaxed.

Lin Kang's maneuvers to interfere with the flight were certainly no strangers to them, and before 1991, the two men had faced similar scenes countless times in the skies over Eastern Europe.

Only at that time, the situation was much more intense.

There was even a time when an RC135 piloted by the captain, Lieutenant Colonel Albert, was stopped in the air by the two engines on the right side under the close interference of the Su-27.

It was 1988, and the entire crew was only 300 meters away from dying on the spot.

"Look at this little plane, it seems to be greeting us in a friendly way."

The co-pilot looked at the fighter plane that was very similar to the MiG-21 not far in front of him, and couldn't help but show a bright smile.

"Then it seems like we should return the favor as a gesture of friendship?"

Albert gently turned the steering wheel in his hand from side to side, making a movement to shake the wings.

The three men in the cockpit erupted in a burst of merry laughter together.

"I think the pilot must have received our kindness." Said the flight engineer in the back.

Lin Kang, who was in the cockpit of the J-7, saw the plane behind him through the rearview mirror and shook his wings provocatively.

The maneuver of the 150-ton aircraft is naturally not sensitive, but it is undoubtedly to show that its flight attitude is under control and has not been affected at all.

As if laughing at the small plane in front of him.

"......"

Rao is Lin Kang has been well-educated since he was a child, and when he saw this scene, he couldn't help but burst into a foul mouth in a low voice.

He reached for the switch for emergency oil discharge in the air.

When a large amount of aviation kerosene is released in a concentrated manner, it will give the aircraft behind it a feeling of being urinated, and in addition to the psychological effects, it will also interfere with the pilot's vision.

Before flipping the switch, Lin Kang habitually looked at the plane's fuel gauge.

At the same time, the voice of the division commander was heard again on the radio.

"Eagle, report the amount of fuel remaining."

"Whew-"

Lin Kang exhaled a turbid breath unwillingly.

"The remaining 40%."

As a light fighter, the fuel volume of the J-7HH has always been a huge problem.

The maximum take-off weight of the J-7 is only about 8.5 tons.

In the transition state with auxiliary fuel tanks, the ideal range is less than 1400 km.

As a comparison, the Su-27 can carry nearly 9 tons of fuel in the plane alone, which is heavier than the entire J-7 aircraft.

Then take into account the distance from the airfield to the mission airspace, as well as the extremely high fuel consumption when flying with afterburner.

There really wasn't enough fuel for Lin Kang to squander.

Even according to the current situation, in another ten minutes or so, they will have to return to the home.

Obviously, the reconnaissance plane behind saw this and showed that it was not in a hurry at all.

"Prepare to return home, there will be two planes from the Air Force brother unit to replace you."

The division commander's voice was also full of unwillingness-

The Air Force took off the same two J-7s, and it will also encounter the same problems as Lin Kang and Chen Haisheng.

They were helpless in the face of a reconnaissance plane that was loitering not far from their homes with obvious ill intentions.

But if you are not reconciled, what can you do?

The performance of the aircraft does not change because of the pilot's initiative.

J-7, no matter what, can no longer support the sky of such a big country as China.

……

Compared with the earth-shattering events at the beginning of the year, this incident did not cause much of a stir in the media on both sides of the Pacific.

For the vast majority of people, it's a normal day.

But for others, it's not.

The news quickly spread within the limits of the secrecy level.

Any discerning person can see that there are no problems with the response of naval aviation.

The problem is that there is no suitable equipment.

No matter how good the Su-27 is bought, if there is no corresponding aviation industry strength to maintain and support, it will not be able to exert sufficient combat effectiveness, and even the transfer flight is a very difficult thing.

And the self-produced aircraft are really embarrassing.

About a week later, at the end of a regular meeting, Mr. Yang produced a press release.

Naturally, it doesn't explicitly write what happened, but most of the people here have heard about it.

What makes everyone feel glaring is the last sentence of the press release.

"Make full use of the accessibility of existing equipment, twist the problems of equipment allocation, network chain construction, multi-domain support, etc., and maximize the combat performance of equipment, so as to promote the overall leap in combat effectiveness......"

On the surface, although it is a positive thing like training troops and preparing for war, there is bitterness and helplessness in the words.

"Comrades, every word in this is poking at our backbone......"

Yang Fenghata looked at the members of the Turbojet 14 Improvement Research Team and said in a slightly sad tone.

The entire venue was silent for a while.

It is naturally Chang Haonan's intention to show the draft, but there are some words that are more appropriate for Yang Fengfa to come forward.

Compared with the large-scale mobilization meeting, this method has a better motivational effect.

It is the so-called smell and end the ceremony, shame and courage.

Although no one took the initiative to say anything, the work efficiency of the entire research team has risen to a higher level.

The next night, the Mach number contour plots and wall limit flow spectra corresponding to several typical rotor/stator blade product line designs were sent to Chang Haonan, who had been waiting for a long time.

In the original plan, this was supposed to be the last part of the regular research step.

After that, it is time to optimize the compressor blade design to maximize the surge margin.

However, he did not feel any lighter because of this.

Because last week, Du Yishan in the capital contacted 601.

A research team from Bingcheng University of Technology found that flow losses can be reduced by making a gap between the pressure and suction surfaces of compressor blades.

The relevant experimental data was also quickly mailed to Chang Haonan.

Once he received the information, he spent the night running a simulation on an ideal stage35 compressor model.

Combined with the data provided by Associate Professor Na Fei, it can be determined that this phenomenon is real.

However, it is always straightforward to study a single independent variable on an ideal model.

In order to apply it to the actual design, it is also necessary to consider the influence of more realistic factors.

In particular, after the compressor blade of the turbojet 14 is improved by Chang Haonan, there will inevitably be a large number of bending, torsion, and grazing designs, which leads to a huge gap between the actual flow field and the plane two-dimensional flow field under ideal conditions.

Looking at the data submitted in front of him, Chang Haonan faced such happy troubles for the first time-

There are so many ways to improve performance, should you use them all?

Compared to a grazing design that focuses on increasing the surge margin, blade slitting can also reduce the total pressure recovery loss caused by the compressor, especially at a certain angle of attack.

Although it has little effect on the maximum thrust on paper, it can significantly improve performance and stability in harsh intake conditions.

This is what the J-8-3 needs most at the moment.

"Only children make choices......

As an adult, he naturally wanted it all.

But on the other hand, Chang Haonan had never been exposed to the theory of jet slit even before he was reborn.

This was completely new knowledge for him.

Since the current ongoing project of the system only considers modifying the shape of the blades, it is entirely up to you to temporarily add a new independent variable.

With Chang Haonan's current proficiency in numerical simulation, this job will not be impossible to do.

But without the efficiency buff provided by the system, there is no guarantee in terms of progress.

……

Fortunately, this annoyance didn't last long.

Because early the next morning, Yao Mengna found Chang Haonan, who had slept in the computer room for two nights.

"Junior brother, I have a few things I need your help with about the leaf cracking."

"Help?"

The sleepy-eyed Chang Haonan turned his head a little dazedly, and his bloodshot eyes startled the latter.

It took a few seconds for him to come to his senses:

"Wait...... Does that mean you've studied it before? ”

It was definitely a bonus.

"Well, in fact, before Mr. Du contacted us, I had already read an article published by Tai Fei's research group in a journal, and I have been researching it for about two weeks, but it is just ......."

Speaking of which, Yao Mengna was a little embarrassed to cut her hair:

"It's just that I've been stuck in the accelerated convergence part of the simulation method, so the data I get is very limited."

"Originally, I wanted to see if I could complete a research project independently without relying on your guidance, but ...... Compared with my own obsession or face, the progress of the project is more important. ”

Although Yao Mengna found many reasons to persuade herself not to ask Chang Haonan for help, there is no way for people to deceive themselves.

She knows very well that the most important reason is her obsession to prove her ability -

"Even if you can't compare, you can't be left too far behind."

And what really made Yao Mengna decide to let go of these was the press release that Yang Fenghata took out at the end of the meeting yesterday.

When she saw the last paragraph, she realized that she seemed to be a little too narrow-minded.

There are many ways to prove yourself, and there can be many opportunities.

At this critical juncture, we must focus on the overall situation.

"When I received a call from Mr. Du last week, I should have told you about it, I'm sorry."

"No, it's okay, or rather, you're here at the right time."

Chang Haonan stood up and strode to Yao Mengna at the door:

"Take me to see your results."

After such a long period of cooperation, he probably knows Yao Mengna's abilities in the field of numerical computing.

Since the other party said that the part he was stuck in was not how to accelerate the convergence, it means that the whole simulation idea should be fine.

If you can improve on this basis, then the amount of work that needs to be done is much smaller.

It may not even be possible to draw any useful analytical conclusions.

The two soon came to another computer room not far away.

"It's all in this." Yao Mengna pointed to the workstation that was still on and in the process of calculation:

"I'm really new to numerical simulation in the UNIX environment, you ...... I want to see if I can slow down when I know how to do it. ”

"Of course, but ...... Don't rush the operation first, I'll take a look at the data you calculated during this time. ”

Chang Haonan stepped forward as he spoke, aborted the ongoing simulation process, and called up the previous results for analysis.

(End of chapter)