"In terms of engine, it is our weakness, and we can't rely on our existing power." Ma Lao said: "Therefore, in our planning, after the completion of the research and development of the turbofan eight, and then develop an upgraded power system, and strive to increase its power by ten to fifteen percent, the current design index of the turbofan eight is 80,000 N, after the upgrade, it can exceed 90,000 N, to meet the power requirements we need." ”

Yes, if you want to top a big plate, you must increase the power, but also increase the strong power supply, and the power system must be upgraded.

"Like our Turbofan Six?" Someone asked that this question has many implications.

Qin Feng couldn't help frowning.

Turbofan 6 is a key project of his own side, Qin Feng also went to see it, and found that this engine has quite a lot of problems, such as what is difficult to start, compressor surge, high turbine inlet temperature and vibration, etc. These problems emerge one after another, which makes researchers brainstorming.

However, later, on the basis of the turbofan six, improvements were made, and the engine of the turbofan six G model was developed. The improvement work is mainly to increase the maximum afterburner thrust of the engine to 138.2 kN, the maximum thrust to 83.3 kN, the thrust-to-weight ratio to 7.05, the performance has been greatly improved compared with the WS6, and the reliability, maintenance and fuel consumption rate remain unchanged under the condition of keeping the original engine dimensions unchanged.

Of course, these are all on paper, to now, Qin Feng's understanding of aero engines is even more profound, because there is no rigorous scientific research rules, no pre-research from the core engine, no large number of basic experiments, it is conceivable that the development of this engine must be difficult.

Now, several engines studied in China have ended up in nothing, this turbofan eight, it is said that the project has also stopped, to continue to improve and improve the thrust in this project, I am afraid it is not easy.

Even the new J-6 project, which is now underway, did not choose to use turbofan VI, but decided to use a copy of the MiG-23 engine, just to avoid technical failures.

You know, aero engines, which are the laurels of industry, require all breakthroughs in materials science and other fields, which is not so easy.

It's a lot of difficulties.

The early warning aircraft is also a key project, and there can be no mistakes, and it can be said that it is unwise to pin our own early warning aircraft project on such an engine.

Of course, there are simple solutions, wait until the civil aviation imports new Boeing passenger planes, and just use their backup engines, which is the most direct.

Qin Feng is just an audience here, and it is already an exception for him to be able to participate in such a meeting, and he is not qualified to express his opinions at the meeting.

As a general of the Air Force, General Lin hopes that this project can be implemented as soon as possible, but he knows that the early warning aircraft project is costly, and it is not so easy to pass.

Or the country is short of money!

The meeting was held for another whole day, and when the meeting ended, everyone's mood was complicated, because the country lacked funds, so it purchased radar from the United States and installed it on its own aircraft, which was the most economical plan, but there were many technical risks.

Qin Feng was also preoccupied, and when he walked out of the conference room, he saw the smile that made him move again.

"Finished the meeting?" Gu Tingting asked Qin Feng.

Qin Feng nodded: "Yes, it's over, it's already busy here, next, I can go to Shenyang with you." ”

Yesterday, the two of them had made a private agreement for life, and then, it was time to visit their parents.

Gu Tingting's face was a little red, although she was still in graduate school, she had reached the age of marriage, and it was normal to go back to her parents now.

Influenced by his grandfather, his parents are also scientific researchers working in the field of aviation, after going back, it is just a kind of passing scene, they don't want to interfere with their love and marriage freedom, let alone use this to leave Qin Feng in Shenyang, where Qin Feng wants to go, it's up to him, knowing that he doesn't like Shenyang, and then when he graduates, he can also be with him, where he goes, he will go.

"Okay, then we have to prepare to buy train tickets in advance." Gu Tingting said.

At this time, in the conference room, other people were also constantly walking out, Mr. Gu looked at the two together, and then looked at Gu Tingting's twisted appearance, and said, "Tingting, let's go back together?" ”

Gu Tingting was just about to nod when she saw a staff member holding a telegram in her hand and said, "Is it Comrade Qin Feng?" Telegram from Chengdu. ”

Qin Feng took it, there were only a few words on it, the first flight, return quickly.

The telegram from Factory 132, the first flight of Factory 132, of course, was not an ordinary J-7, Qin Feng immediately thought of it, it must be a brand-new J-7II.A aircraft equipped with Marconi's avionics system!

From the outside, this aircraft is similar to the ordinary J-7, and it does not have the thick air intake cone like the MiG-21MF, but its interior has been completely renewed, and the imported avionics equipment has given this old aircraft a second spring.

The first flight is an important ceremony, Qin Feng was immediately moved, his current experience is quite rich, as a fighter who has flown the Mirage 2000, and then facing some new things such as flat display, he can easily control it.

Of course, he wanted to be the first to fly with this new model.

But what about Tingting?

Gu Tingting also saw the telegram and knew Qin Feng's intentions, so Gu Tingting turned her head and looked at Mr. Gu: "Grandpa, go back by yourself, and tell them when you go back that I want to marry Qin Feng, and we don't want to make a big deal of it, just let them know." ”

What the? When he heard this, Mr. Gu opened his mouth wide in surprise, and his jaw almost fell off.

The woman didn't stay, her daughter grew up, and her elbow began to turn outward, Gu always thought about his original intention, and felt that he had lost his wife and broken his soldiers, this Tingting had already recognized Qin Feng, this was the rhythm of eloping.

"Yes, yes!" At this moment, another voice came from behind, it was General Lin, General Lin said with a smile: "Comrade Qin Feng, but the pride of our Air Force, a great guy like him, I want to find a gentle and beautiful girl for him, now, our Tingting is completely worthy of Qin Feng, although it is not a big deal, I still want to drink this wine." ”