When he was freed from the ranks of flight cadets, it was already noon, Qin Feng's stomach was grumbling with hunger, and he declined the invitation of the aviation school, if he ate at their place, he was afraid that he would stay in the aviation school again in the afternoon, and he came to find Song Lao, to be a test pilot engineer, and to participate in the design of the J-9.

After eating, the vegetable field has been reclaimed, and everyone looks at Qin Feng's face differently.

"Comrade Qin Feng, it turns out that you are the test pilot."

"It's amazing."

"I heard that in the future, you will develop fighters with everyone, and with a test pilot hero like you, our fighters will definitely be designed more scientifically."

"I'll go find Song Lao." If Qin Feng chatted with everyone, this afternoon would have passed, so let's go find Song Lao.

"Old Tu just came, and he's talking to Old Song." Zhang Lijun volunteered: "Go, I'll take you over." ”

Tu Lao and Song Lao, they are both superior leaders, and they are the existence of admiration, but this little draftsman, Zhang Lijun, has no awe of his superiors at all, and walked into the small building with Qin Feng.

Even though it's Saturday, there are still a lot of researchers working overtime, and it's a lot of effort for them to be able to do what they love.

"Old Song, I don't think your idea is right." Just as he was about to walk to Song Lao's office, he heard a quarrel from inside.

Hearing this voice, both of them immediately stopped.

Song Lao is amiable, Tu Lao is meticulous, they are all technical leaders, they usually don't have any fights, and they haven't seen any quarrels, what's going on this time?

"It's right there, I'll go first." Zhang Lijun said, turned his head and walked back, in the research institute, it is better not to know what you should know, it is better not to listen, and the strict sense of confidentiality permeates everyone's heart.

Qin Feng stood there, listening to the conversation inside.

"Lao Song, the superior asked our aviation department in Chengdu to carry out the surveying and mapping of the new fighter, and now after our research, we found that this aircraft is not what we need, the MF model is backward, the BIS model is advanced, we don't need to waste time on this, so, my suggestion is to follow the instructions of the superiors, comprehensive surveying and mapping imitation, and use one year to complete the tasks of the superiors."

As soon as Tu Lao's words fell, he heard Song Lao's words: "It is precisely because its performance cannot meet our needs that we can't directly carry out surveying and mapping imitation on this fighter, we have to understand its technology, and then improve it, until it is improved to the level of BIS, isn't it?" ”

The two of them were very vague, but Qin Feng heard it very clearly.

This is a dispute over the problems that arose with the mapping and copying of the MiG-21MF.

Qin Feng flew over the MiG-21MF, compared with his own J-7 II, the maneuverability has not improved in the slightest, but has decreased, and the benefit is only a large radome, which can carry a larger caliber radar.

This is not something they can decide, the superiors are already determined to survey and copy, so there is the current dispute.

For Tu Lao, then complete the task given by the superiors as soon as possible, over the years, everyone will not do anything else, surveying and mapping imitation is quite smooth, just copy the MiG-21MF according to the script, that is enough.

Over the years, Tu Lao has been dealing with the J-7, and he has long understood the structure of this aircraft, and he has always thought that the current J-7II is already good, and on the basis of this aircraft, he will continue to dig deeper, and he will definitely be able to create a fighter that he needs.

But Song Lao disagreed.

Song Lao also knew that the performance of this aircraft was insufficient, after all, the focus of the country at that time was to get the MiG-23, in order to understand the technology of the MiG-23, this MiG-21MF, can be regarded as piggybacking, since it has been introduced, it must be imitated.

However, what if it is only an imitation and the performance is insufficient?

Then simply thoroughly understand the technology of the MiG-21MF, and then improve it on the basis of this aircraft, wouldn't that be enough?

This is what Song Lao thinks.

But Tu Lao disagreed.

"If we want to improve, why don't we improve on our planes now? We have to waste years of time to eat a new aircraft again, old Song, you know, if too much time is wasted on a model, it is likely that the project will be cut. Tu Lao continued to argue with Song Lao.

Having already eaten the prototype of the MiG-21, they have begun to transform the J-7II, so why not improve it on their existing aircraft and change it to a new aircraft?

Although it is only the increase of the air intake cone and the increase of the back, the aerodynamic shape has changed, and if you want to eat it thoroughly, you have to continue to blow the wind tunnel, which takes too long and is not cost-effective at all!

"But its nose air intake cone has a large diameter, which allows us to install a large radar, which is very important for the J-7." Song Lao said.

Why did you like the MiG-21MF? Isn't it because of its large intake cone?

Tu Lao shook his head: "Old Song, it's bigger than the air intake cone, can it compare to our J-8?" ”

The J-8 is still in its infancy, and there are still many technical problems that have not been resolved, all of which are project delays caused by a decade of turmoil.

The original model of the J-8 is the double-hair large version of the J-7, which also has a nose air intake, but because the fuselage is lengthened and thickened, its nose air intake cone is the largest and the first in the world.

Later generations ridiculed that if it was bigger than JJ, it was definitely not the MiG-21MF, and any JJ would hide its face and cry in front of the J-8.

It's like is better than JJ, and no one can compare to it.

However, this will not work, the early J-8 was only a day fighter, until the nose of the MiG-23 was transplanted and became a side air intake, so that it could really be regarded as a positive result and became a J-8II fighter.

"Old Song, although our current J-7II nose air intake cone is not big enough, we can already go abroad, we can introduce advanced avionics from the West, don't look small, it can also make our fighters have a reborn performance improvement, no matter how large the caliber is, it is impossible to have medium-range interception capabilities, what do you say?"

Tu Lao wanted to convince Song Lao, but Song Lao continued to shake his head: "If foreign avionics are introduced, it can be installed on the J-7II, and it can be installed on this surveying and mapping model, and the performance will only be better, why not?" ”

It seemed that the quarrel between the two could not be over, Qin Feng thought about it, walked a few steps forward, and knocked on the door gently.