Chapter 1292 What Fourth Generation Engine? It's Just a Turbofan 10G

Although Chang Haonan personally signed the license document, allowing the CT-1 high-energy hybrid propellant, which is still under development, to be put into several other projects for verification, he did not pay much attention to the subsequent specific progress of these projects.

Therefore, it is naturally impossible to know that his big hand has reached out to the big brother of the army who is about to end his hardships without his knowing it at all.

For him, the top priority is still the hypersonic flight body itself and the development of scramjet engines.

However, there are inevitably some hiccups in the middle.

After working around the Huairou Science City for more than a month, Chang Haonan, combined 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 the plasma flow field. understanding.

The most critical next step is of course to accurately weaken the black barrier shielding layer under the shape of the waverider, so that the two hypersonic missiles can truly have usable terminal guidance capabilities.

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

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

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

But now that new technologies are available and useful, these two projects must still be benefited.

Therefore, Chang Haonan took advantage of the group's meeting at the end of the year for the main leaders of each factory to find Liu Yongquan, who was actually responsible for the development of the fourth-generation aeroengine.

Since the former's work focus was transferred to Haojing, the two have not communicated face-to-face for more than a year. They basically communicate through written reports or phone calls.

Therefore, after meeting, Chang Haonan did not rush to get to the point immediately. Instead, he talked about the situation in his brother's unit next door.

"Old Liu, you must have been in contact with the aviation industry recently?"

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

"yes."

The latter nodded and replied:

"Of course, Comrade Xie Xiaoping is responsible for most of the direct liaison work. I basically only regularly exchange project progress with several chief engineers and deputy chief engineers over there."

Liu Yongquan is now considered the second-in-command of Shengfa Group, and he has not given up front-line research and development work. Naturally, he cannot 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 always been concerned about this matter, but he is not directly responsible for the fourth generation power.

And if you make a phone call or send a letter to someone just to satisfy your curiosity, it doesn’t seem like that’s the point...

Therefore, for a long time, we could only understand some side information from some fragments in the report.

"It's going pretty well... In June this year, my country's first large-scale microwave anechoic chamber jointly built by Qinghua University and the Aviation Industry Corporation of China was put into use in Chongqing. Through full-scale model experiments, the stealth performance of the 611 program was basically verified. The feasibility of..."

"In addition, this project can be said to be the largest cooperation in 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 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:

"In the area of ​​infrared stealth, there is relatively mature technology... Of course, to be honest, if it is directly behind the aircraft, the infrared signature cannot be really hidden... The key to this aspect is radar stealth. For us Relatively unfamiliar.”

Although on the whole, RCS can be reduced to a certain extent by processing the edge of the tail nozzle into a zigzag shape, but when it comes to design, it is definitely not just a few random strokes.

Liu Yongquan also quite agreed with this, but there was still a bit of helplessness in his expression:

"Besides having no experience in this area in the past, I really can't do two things at once... At this stage, the main energy in the institute is still focused on adapting to new configurations of compressors. Fortunately, you have given Turbofan 10 a foundation in this regard. I kept it well, so I didn’t get stuck in the progress very much.”

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

So in terms of compressor design, Liu Yongquan and his colleagues are not essentially "improving" an old engine, but "restoring" an engine that was originally a fourth-generation engine to its original state.

At this point, Chang Haonan saw that the atmosphere and topics were almost the same, so he was ready to start talking about today's business:

"There is really no need to be too anxious about the tail nozzle..."

Liu Yongquan's movement of picking up the teacup stalled, and he immediately understood what Chang Haonan meant:

"If the 611 side moves very quickly, then our minimum plan is to deliver a version using a conventional nozzle first, and let the stealth verification aircraft fly first... After all, the nozzle is not a core component of the aircraft engine, and it can be used later. Make further adjustments..."

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

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

6◇9◇Book◇Bar

For a normal-sized aircraft, if you want to wrap the entire aircraft with plasma, let alone whether it is convenient at the tactical level, but in terms of difficulty of implementation, you probably need to put a nuclear reactor on the aircraft to do it.

However, for some parts that are smaller in size but have strong 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 performance degradation. Now you can get rid of the shackles to a certain extent and achieve more free detailed design.

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

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

Liu Yongquan was obviously shocked by this sudden sentence.

"???"

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

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

Chang Haonan said and took out a piece of information from the drawer next to him:

"Although it is impossible to achieve uniform coverage of a large area of ​​the plasma layer because the flow field is too complex, 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 in the 611 plan, without changing With the overall layout, the overall stealth performance of the aircraft, especially in the side and rear direction, is greatly improved.”

Not sure whether it was because of shock or excitement, Liu Yongquan's arms were shaking a little. He tried three times in a row before picking up the thin pieces of paper on the table, and then looked over them several times.

"Relying on the engine to provide stealth capabilities...it can be regarded as a product that transcends the times..."

There was still some disbelief in his tone:

"Academician Chang, do you really not consider naming it separately?"

Chang Haonan has long thought about this issue.

He shook his head very firmly:

"No, just call it turbofan 10G."