This level of change, while not an upgrade to the entire standard, does bring a lot of convenience to the design work.

You must know that aircraft design is actually a very complex job, in addition to people like Song Wencong, Yang Wei, Chang Haonan who do the overall design, in fact, there are many technical personnel who are not paid attention to, responsible for subsystems or more detailed parts.

They may not have a particularly high level of talent and the ability to defy the sky, but they are the backbone of completing a project.

In a way, it's also a decisive step in a project.

Chang Haonan before rebirth should be regarded as a relatively important one in this part of the people.

And this improvement in design methodology is of great significance to them.

It is logical to improve the work efficiency of the entire project team.

Of course, this aspect of work does not need Chang Haonan to do anything, there will be a person from Rongfei Group who is responsible for standardizing the design method.

If the effect is good, it will gradually be extended to all units of the aviation industry, and eventually become the standard when the next standard is updated.

It's like digital design, and pulsating production lines.

This is also the benefit of the entire aviation system to maintain a national game of chess.

If we really follow the method of the previous generation and divide the aviation industry into one group and two groups in parallel, many places will naturally and slowly produce differences.

Not to mention a lot of internal friction, even if you want to merge back in the future, it will be a troublesome thing.

"Speaking of which, the prototype 04 has also entered the final process of final assembly, do you want to take a look?"

Xu De, who hadn't spoken for a long time, suddenly proposed.

After all, he is the deputy chief engineer in charge of aircraft production, although it is impossible to know nothing about design at this level, but in front of Chang Haonan and Yang Wei, he still can't say anything.

"No. 04...... You're building prototypes pretty fast......"

It has only been a year since the first flight, and excluding the No. 02 aircraft used for static failure tests, there is a third aircraft that can be used for test flights.

"Is this...... This year, the overall allocation of the state to the aviation industry has increased a lot, and specifically for our No. 10 project, which is a key project under the central management, this year's budget has increased by nearly a quarter on the original basis, and the funds will naturally be abundant......

Song Wencong replied beside him.

Although the chief engineer Xue Chiyu should directly manage the project budget, the chief designer is definitely aware of the expenses.

After all, not all projects can rely on the high efficiency of the sky to save money like Chang Haonan-

The expenditure characteristics of the turbofan 10 and the die forging press are to concentrate the funds originally expected to be allocated in five years to spend in two years, and then quickly take out the results and return the funds.

If this method of burning money is left in the hands of others, it will have to scare the budget department to death.

Talking about this topic, Xu De suddenly became a lot more energetic:

"Yes, I can feel that the above views on the aviation industry are gradually changing, especially the financial system, which has gradually regarded us from the bottomless pit of burning money as an effective investment in the short and medium term......"

"At this point, it is the counterparts of the whole country who have to thank Comrade Haonan to ......"

The difficulty of lack of money, Rong Fei's people can be said to be the most clear.

Although it is not to the extent that you can spend it freely, it is really better than the situation in the past when you wanted to break a penny in half, and even the chief engineer took the lead in setting up stalls on the street to sell noodles to make a living.

As a result, the apron was filled with cheerful air for a while.

In fact, the assembly workshop is actually nothing to look at, because the prototypes are produced in a single frame, and each one may be different, so there is no need for cutting-edge assembly technology.

It's just that since Xu De has mentioned it, it is not reasonable to refuse.

It's part of the visit.

The real highlight was the second day's Project 10 Class II Prototype Technology Seminar.

Since theoretically, the Air Force has not yet officially named this equipment, so it is the official name of Rongfei today.

Correspondingly, the version that uses a binary adjustable air intake and is already in test flight is naturally called a Class I prototype.

Of course, under normal circumstances, it is directly called J-10E and J-10A.

……

The Guihang Industry team led by Sun Huizhong arrived on a chartered flight the next morning, and then was picked up to Rongfei as quickly as possible.

"Mr. Song, Mr. Chang, Mr. Yang, I'm so sorry for delaying everyone's time."

After entering the door, Sun Huizhong, the leader, shook hands with the person in charge of the No. 10 project one by one.

"It doesn't matter, there is a reason for it, and besides, the project is not in a hurry to work on this day."

Song Wencong immediately said that it was okay.

"Yes, it just so happens that I haven't been to Rongfei for more than half a year, and I still had half a day yesterday to look at the changes here."

Chang Haonan also added.

Then, on the way to the seminar site, we talked about the situation of Guihang Group:

"By the way, Sun Gong, I was at the Air Force Aviation School before, and I heard that they seem to be preparing to purchase a new advanced training aircraft, is there any news?"

When it came to the matter of Jianjiao 9, Sun Huizhong, who was still a little tired on his face, lit up in his eyes:

"Yes, I wanted to call to thank you for this incident, but you were not in the capital at that time, so I didn't get in touch with ......."

"At present, a batch of 26 aircraft has been ordered, of which 6 are the same version with formation indicators as the Bayi performance team, and the delivery cycle is very ......."

“……”

After some greetings, the participants came to the venue one after another and sat down according to their respective tasks.

Chang Haonan noticed at this time that Lin Tongxin, who had followed Sun Huizhong to the capital before, also followed him this time, and also took the title of deputy director of the research laboratory.

Clearly, progress is flying.

Of course, it is also a dividend that no one can use in the first two years of Guihang Group.

The people who participate in this kind of technical meeting are pure people, and they don't need any opening words.

After Song Wencong briefly talked about today's topic, the microphone was handed over to Chang Haonan.

"Comrades, before discussing specific technical issues, let me first give a general overview of the improvement scheme for the prototype of the II class."

As he spoke, he flipped through the PPT on the computer and showed a rough rendering.

After a brief silence, there was an uproar.

"This ......"

"This solution, compared with our current Class I prototype, is a bit different......"

"yes, not to mention the details, the shape of the nose and the wings have changed slightly."

“……”

The technicians sitting below couldn't help but whisper, and even Song Wencong and Yang Wei, who had heard Chang Haonan draw cakes before, were a little surprised.

Although the overall shape still maintains the characteristics of the J-10 - wing-body fusion, medium-range coupled canard wing + large delta wing, belly air intake, single engine and single vertical tail, and obvious bee waist structure......

But on closer inspection, the difference is not small.

While the overall dimensions are still not out of place, the aircraft has become fuller.

In particular, the cross-section of the fuselage has changed from an approximately perfect circle to a wider oblate type on the left and right.

There is even a slight shadow of a Typhoon fighter.

The advantage of this is obvious, that is, the usable volume of the aircraft becomes larger when the measurements are basically the same.

But at a cost...... It's obviously fatter.

"Comrade Haonan ......"

Song Wencong felt a little sweat on his head:

"Before you...... I didn't say I had to make such a big deal......"

He spoke in a small voice, obviously worried that this sentence would be heard by the people below and would affect their confidence in their work.

"And this plane, I look at it at least 100 kilograms higher than the current design empty weight, plus the resistance increased by changing the area rate......"

Yang Wei's eyes also trembled a little:

"Although our aircraft is a medium-sized aircraft, we can't completely give up supersonic performance, right?"

At this time, Chang Haonan finally continued to speak.

Not just to the other two chief engineers, but to everyone on the scene:

"I know what your concerns are."

Speaking of which, he directly turned the PPT to the back page:

"At the end of last month, the domestic turbofan 10 engine that is expected to be equipped on the Class II prototype has completed the parameter calibration."

"The first model of mass production, that is, the turbofan 10A, can reach a maximum thrust of 13.2 tons at sea level."

"The specialized single-engine model, the turbofan 10B, has been specially tuned to increase the maximum thrust at sea level to 14 tons, which is 12% higher than the current AL31FN, and has been specially optimized for high-altitude and supersonic thrust."

"So, there's no need to worry too much about the flight performance after the change!"

(End of chapter)