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

Therefore, it was naturally impossible for him to know that his big hand had already reached out to the army big brother who was about to get his reward without his knowledge.

For him, the top priority remains the hypersonic flight vehicle itself and the development of the scramjet engine.

However, some minor incidents are inevitable in the middle.

After working non-stop in Huairou Science City for more than a month, Chang Haonan, with the assistance provided by the system, finally had a relatively comprehensive understanding of the plasma generation methods corresponding to various technologies, as well as the propagation and coverage of plasma flow fields.

The most critical task in the next step, of course, is to deal with the precise weakening of the black barrier shielding layer under the waverider shape, so that the two hypersonic missiles can truly have usable terminal guidance capabilities.

But before that, Chang Haonan did not forget his old business——

After all, he is still one of the main leaders of the Aviation Power Group, and is also responsible for the development of the next and next generation turbofan engines.

Although one of them does not require him to be personally responsible for daily work, the other is still in the preliminary research stage.

But now that new technology is available and useful, it will benefit these two projects.

Therefore, taking advantage of the group's year-end meeting for the main leaders of each factory and institute, Chang Haonan specifically found Liu Yongquan, who was actually responsible for the development of the fourth-generation aircraft engines.

Ever since the former's work focus shifted to Gaojing, the two had not communicated face to face for more than a year, and basically communicated through written reports or phone calls.

Therefore, after meeting, Chang Haonan did not rush to get to the point, but instead talked about the situation of the neighboring brother unit.

"Lao Liu, you should have been in contact with the aviation industry recently?"

As he grew older, he gradually fell in love with drinking tea. At this moment, he and Liu Yongquan were sitting on the sofa in the office, each holding a teacup.

"Yes."

The latter nodded and replied:

"Of course, most of the direct liaison work is handled by Comrade Xie Xiaoping. I basically just exchange project progress with several chief engineers and deputy chief engineers there on a regular basis."

Liu Yongquan is now the second-in-command of Shengfa Group. In addition, he has not given up his front-line research and development work, so it is naturally impossible for him to be responsible for too many trivial matters personally.

But for Chang Haonan, this is enough:

"So...what is the specific progress of the fourth-generation fighter project now?"

He asked the question that concerned him most.

Chang Haonan has actually always been very concerned about this matter, but the fourth-generation power is not directly under his control.

But if you call or send a letter to someone just to satisfy your curiosity, it doesn't seem to be the right thing to do...

So for a long time, we could only learn about some side situations from a few words in the report.

"It's going pretty smoothly... In June this year, my country's first large-scale microwave darkroom, jointly built by Tsinghua University and Aviation Industry Corporation of China, was put into use in Chongqing. Through full-scale model experiments, the feasibility of the 611 Institute's solution in terms of stealth performance was basically verified..."

"In addition, this project can be said to be the largest cooperation of the entire Aviation Industry Group. Factory 112 also specially transferred a J-11B from the production line to verify the working conditions of several key subsystems..."

"..."

"Of course, because this is the first time that our country has systematically carried out research in the field of aircraft stealth, in the past we could only rent foreign microwave detection equipment in stages, so there are still some key details that need to be optimized, including the power part we are responsible for, especially the radar and infrared stealth of the tail nozzle. 611 attaches great importance to it..."

After hearing this, Chang Haonan nodded slightly:

"Infrared stealth is a relatively mature technology... Of course, to be honest, if you are really behind the aircraft, the infrared signature cannot be hidden... The key here is radar stealth, which is relatively unfamiliar to us."

Although generally speaking, the RCS can be reduced to a certain extent by making the edge of the tail nozzle into a serrated shape, but when it comes to designing it, it is definitely not something that can be done by just drawing a few strokes casually.

Liu Yongquan also quite agreed with this, but his expression was still somewhat helpless:

"Besides having no experience in this area in the past, I really can't do two things at once... At this stage, the main focus of the institute is still on adapting the compressor of the new configuration. Fortunately, you have left a good foundation for the WS-10 in this regard, so the progress has not been stuck."

Rather than saying that the fourth-generation engine under development is the WS-10plus, it is better to say that the model previously equipped on the J-10 and J-11 is the WS-10 Youth Edition.

So as far as compressor design is concerned, Liu Yongquan and his team are not essentially "improving" an old engine, but rather "restoring" an engine that is already a fourth-generation engine to its original state.

At this point, Chang Haonan saw that the atmosphere and topics had been laid out, so he prepared to start talking about today's business:

"There's really no need to worry too much about the tail nozzle..."

Liu Yongquan paused as he picked up the teacup, and then he naturally misunderstood Chang Haonan's meaning:

"If 611 moves very quickly, then our backup plan is to deliver a version with a conventional nozzle first, and let the stealth verification aircraft fly first... After all, the nozzle is not a core component of the aeroengine anyway, and it can be adjusted later..."

Chang Haonan quickly waved his hand and interrupted the other party:

"No, no, no... What I mean is, I have a new technology that is being verified here, which can solve the problem of excessive radar reflection area of ​​the local structure of the aircraft..."

Read the original text at Liu#9@书/吧!

For a normal-sized aircraft, if you want to wrap the entire aircraft with plasma, not to mention whether it is convenient from a tactical perspective, in terms of the difficulty of implementation, you probably need to move a nuclear reactor onto the aircraft to do it.

However, for some parts that are smaller in size but have stronger radar characteristics due to the inevitable concave structure, in the past they could only be overcome to a certain extent through shielding methods, and even had to bear the cost of reduced performance. Now, they can get rid of the shackles to a certain extent and achieve more free detail design.

In fact, the plasma blanket can also reduce the derived resistance of the airflow at the nozzle to a certain extent and slightly increase the effective thrust of the engine.

Of course, the effect in this regard is too insignificant, so Chang Haonan did not mention it specifically.

Liu Yongquan was obviously shocked by this sudden remark.

"???"

His face was full of an expression that said, "I've read a lot of books, don't lie to me."

"By adding a plasma source to the combustion chamber, we can use combustion jet technology to generate a controllable open plasma directly from the engine tail nozzle..."

Chang Haonan said as he took out a document from the drawer next to him:

"Although it is unlikely to achieve uniform coverage of a large area of ​​the plasma layer due to the complex flow field, it can at least partially shield the tail nozzle itself, as well as key positions such as the ventral fin and the trailing edge of the tail wing in the 611 Institute's proposal. Without changing the overall layout, the overall stealth performance of the aircraft, especially in the lateral and rear directions, can be greatly improved."

Liu Yongquan's arms were shaking, not sure if it was because of shock or excitement. He tried three times before he was able to pick up the thin sheets of paper on the table, and then he looked at them over and over again.

"The engine provides stealth capabilities... It can be considered a product that transcends the times..."

There was still some disbelief in his tone:

"Academician Chang, are you really not considering naming it separately?"

Chang Haonan had thought about this issue a long time ago.

He shook his head very firmly:

"No, it's called WS-10G."