Time flies.

Qin Feng learned a complete tailspin test flight in the flight test institute, and, with the acquiescence of the instructor, he finally changed the tailspin subject of the Jian-7, which could have flown four laps in the tailspin test flight, to fly six laps, and won the highest praise from his Russian counterparts, and then, after finishing his Russian studies in the cold winter, he returned to the capital.

The research and development of J-10 has also entered the stage of tackling tough problems.

The modification of the engine has changed the fuselage of the J-10 a lot, and when Qin Feng saw the prototype of the J-10 again, he couldn't help but widen his eyes: "It's so beautiful, now this aircraft is on par with the Su-27!" ”

At this time, when he spoke, Qin Feng also felt sweaty.

This is already the spring of 97, from the beginning of 94, J-10 after switching to the third uncle's engine, completed all the design drawings, and then entered the assembly stage, this aircraft is the most advanced fighter developed in China, so the manufacture of the aircraft needs to be in a state of high secrecy, even if it is the same factory, people in other workshops, do not know what is being done here!

In order to meet this requirement, the whole workshop is in a sealed state, the windows cannot be opened, and thick curtains must be drawn, and the whole workshop is like a big steamer!

Even in this case, the workers are working hard to build this aircraft as soon as possible, and after more than two years of hard work, finally, the whole aircraft has entered the final stage!

This is not easy, looking at the gradual formation of this aircraft, everyone's heart is full of excitement, looking back, more than ten years have passed, the country finally has its own development of a third-generation aircraft!

"The pelvic fin in the back has changed." Qin Feng said.

Now, Qin Feng has also returned to Chengdu from the test flight institute to prepare for the first flight of this aircraft, Qin Feng's heart is quite excited, after many years of hard work, finally has the Air Force's own third-generation aircraft!

Now, looking at the shape of the plane, he began to study it.

The first thing he saw was the tail, after all, the plane had changed its engine, and he wanted to see what it looked like after installing his third uncle, and then he saw the pelvic fins under the engine, which became double pelvic fins that were inclined to the sides.

"Yes, there has been a big change from the original metal verification machine, and this double ventral fin is also one of our achievements in the past few years."

In recent years, the relationship with Russia is relatively close, Chengdu is currently carrying out two projects at the same time, Chaoqi has become a dragon, entered the stage of detailed design, and also maintained cooperation with Mikoyan in the design, this kind of double ventral fin, is learned from there.

The pelvic fins are designed to maintain the stability of the aircraft's course during navigation, and the huge vertical tail is to help maintain it, and the double vertical tail of the MiG-25 is specially designed to maintain a stable course in thin air, and has become the mainstream of heavy fighters.

In addition to having a vertical tail on the top, there will also be a pelvic fin below, which used to be a single large pelvic fin, but it is easy to contact the ground during takeoff, and it is easier to scratch and land, but now it has been changed to a double pelvic fin, which solves the problem.

Because the engine in the tail is thicker, it has been repaired in the middle, just like a sexy beauty, with a perfect waistline, it is not a simple repair, but a correction after calculating the supersonic area rate.

Qin Feng came to the front again, looking at the air intake, the air intake in the form of a leather drag became a rectangle, and the attached surface layer isolation plate on it was also supported by six sticks, looking at this design, Qin Feng felt a little nondescript.

"Although it doesn't look very good, this design is also fully able to meet the needs, due to the increase in air intake, our intake tract needs to be expanded, which may lead to the original lack of strength, so as to make up for the strength of the solution."

Qin Feng nodded, and at this time, the sound of the chainsaw started again, and the assembly work came to an end.

At this time, Qin Feng was already sweating, his entire clothes were soaked, and the workers on the scene were still continuing to manufacture, and their overalls were also full of sweat, but no one retreated, looking at their hot energy, Qin Feng's heart was full of anticipation.

It is precisely because of such a group of people who silently dedicate themselves to the interests of the country that there will be a strong national defense of the motherland!

Recently, there have been a lot of voices in the army, and many people have been confused by the Su-27, in their minds, the performance of the Su-27 is very advanced, so there is no need for the J-10, there is money for the research and development of the J-10, it is better to buy a few more Su-27s!

Fortunately, with the support of General Lin and General Liu, this project has been advanced step by step to the present, and everyone is under great pressure, and now everyone is turning pressure into motivation.

Qin Feng came to the front of the nose, the use of the new equipment of this fighter has exceeded 60 percent, and in front of the nose, advanced pulse Doppler radar will also be installed, from this point of view, the J-10 has surpassed the Su-27, and the Su-27 is still using backward inverted card antennas, and the performance cannot be compared with the radar of the flat slot antenna, and the data processing capacity of the own side will be stronger.

The 14th Institute has finally come up with this kind of radar!

Now, the R&D team of the 1473 radar is still doing the final research, striving to develop the world's advanced radar and install it in the nose of the J-10, with the Thunderbolt 11 missile, the medium-range interception capability that the Air Force has been looking forward to for many years, can also be localized.

"Old Song, wouldn't it be better if this nose was designed to be flat like the F-16?" Qin Feng suddenly asked Song Lao.

The nose of the J-10 is round, which has the characteristics of a typical second-generation aircraft, and the nose section of the F-16 is oval, and the bottom is flat, so that the nose can make the air intake have the effect of precompression, and it can also provide a certain lift, which should be the best design.

Now, hearing Qin Feng's question, Song Lao nodded: "Yes, if the nose changes shape, of course there are benefits, but that also means that the nose will increase lift, the center of lift will be forward, the trim of the aircraft will be more difficult, our static instability will be more difficult to control, and the complexity of the flight control will be doubled." ”

Now, this plane is about to be manufactured, and what is pressing on everyone's hearts is still the flight controller!

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