When the 132 factory was sold to the outside world, other countries directly accepted it, and at most put forward projects for improvement on some key issues, but now, the improvement required by the Pakistani side is quite a lot.

Now, they mentioned the improvement again, Qin Feng frowned, since the other party has a request, then he has to agree, this is a buyer's market after all, and he just wants to meet the needs of customers.

Now, what does the other side want to improve?

"What do you want to change?" Qin Feng asked.

In Qin Feng's eyes, the J-7M has been improved to the present, it is already very powerful, if the only backward place is the problem of counterweight, after all, this aircraft was designed by the Soviets, there are many places that can not be moved, every improvement, in the end, it is by adding counterweight, and finally let the aircraft return to balance, in short, it is equipped with Marconi's avionics, the technology is more advanced, the nose is lighter, if it can be perfectly reflected in the whole, it will be good, the lighter the aircraft, the higher the performance.

But no, in order to rebalance the weight, a large lead block was added to the nose, which was also a last resort.

Therefore, the next step for our side should be to continue to understand the technology of this aircraft, if it is thoroughly understood, then the lead block of the counterweight will be removed, which can improve the performance of the aircraft.

Now, the way everyone thinks of is to reduce the weight of the tail, the nose, and the tail, so that the center of gravity can return to its original position, and that's it.

Therefore, it is necessary to use composite materials, but the domestic composite materials are not enough, this time, there is not much effect, and in the end it is not enough.

The second-generation aircraft is statically balanced, and the center of gravity and lift center coincide, which is a key requirement, and if this requirement is not met, it is easy to cause the aircraft to lose control in flight.

Therefore, it is necessary to add counterweights, and on the other hand, it is necessary to change the center of lift, so that the center of lift will coincide with the position of the new center of gravity, which will also work.

And in this case, it means changing the wing, after all, the wing is the main device that generates lift.

The wing of the J-7 is still the airfoil specially designed for high altitude and high speed of the second-generation fighter, and if the airfoil is modified, it may bring better performance advantages.

Changing the wing should be the next task, but Factory 132 can't do it by itself, and it must be done together with more institutions.

Qin Feng thought in his heart, who are you looking for?

I must be looking for a university institution, looking for a test flight institute, and doing it together.

Now, Qin Feng thought so, and at the same time was waiting for the other party's answer, as the main commander of this flight appraisal, Alam said: "It would be nice if the engine could be changed, especially, if it was changed to a turbofan engine, the performance would be improved immediately." ”

Hearing Qin Feng's speech, change the engine?

The turbojet 13 is now being mapped and mapped, and there are still a lot of problems, it can't be used in a short time, as for the turbofan engine? I don't think about it, there are only imitation Spey in China, and that thing will never be stuffed into Jianqi's ass.

"Well, I hope we'll have a chance in the future." Qin Feng said bluntly.

This request is an unreasonable demand, Qin Feng will not agree, and the other party should also know that he can't agree to this request they made.

"yes, let's wait for later, if there is a chance later." Alam said with a sigh.

Today's confrontation analysis is finally over, Qin Feng and Saad and others have studied it a few times again, hoping to find a strategy to defeat the enemy, and after a few times, Saad will go to the sky, which will show a bigger gap, and in front of the F-16, it is difficult to confront.

Time passed day by day, and in the hottest weather in South Asia, countless personnel were silently sweating and dedicating themselves to the strength of the domestic military industry.

Qin Feng is also continuing to study, every time he fights with F-16, Qin Feng can find out what belongs to F-16, and he also fantasizes about how it would be better if he was controlling it, just like that, in this extreme weather, Qin Feng is also used to it.

If the stuffiness can still be bearable, the sandstorm here is even more uncomfortable, overwhelming, nothing can be seen, compared to the sandstorm in the capital, the sandstorm here is more stuffy, every grain of sand, seems to have been warmed.

Qin Feng was still insisting, and now, he had become one with the people here.

While persevering in a foreign land, Qin Feng is also thinking about his wife, children, and everyone in his hometown.

Finally, this test has come to a successful end, and the Pakistani side is already very satisfied with the adaptability of this fighter in Pakistan's climatic conditions.

However, there are still some small problems with this aircraft, which need to be modified, for example, various instruments on the dashboard, to adjust the position according to their habits, in terms of seats, they are not at ease with domestic seats, to modify the British zero-zero ejection chair, on the weapon pylon, to be able to use four anti-aircraft missiles at the same time!

Ejection seat, related to the life of the pilot, now their own aircraft is using the HTY-4 ejection seat, it can be used at zero altitude and speed greater than 140 km / h, so that if the speed is not enough, it can not guarantee flight safety, and Martin Baker MK.10L ejection seat, has fully realized zero height and zero speed ejection.

So, the plane needs to be modified!

When he flew the plane and returned to Chengdu, it was already autumn, and Qin Feng breathed the fresh smell in the air, and after not feeling the heat wave, he was finally extremely comfortable.

After getting off the plane, Qin Feng was already surrounded by a group of people, Tu Lao was the most excited, patted Qin Feng's shoulder again and again, looked at Qin Feng's face, and said, "In a few months, you have already transformed." ”

"It's not a metamorphosis, it's a molt." Qin Feng said, in the past few months, he has been sunburned off several layers of skin, in the past, he could not be said to be a little white face, at least he was a white person, but now, he is about to become a black man, the sun there is poisonous.

"I heard that the Pakistani side is quite satisfied with your flying skills and praises you for reaching the level of an ace pilot." The other test pilots on the side followed suit.

"As long as you don't disgrace the motherland." After Qin Feng said this, he glanced outside, and suddenly, he was stunned.