This horizontal line pointed to this, and Team Leader Zhu first reacted: "Yes, that's it, we can improve this part of the air intake cone, wrap it with conductive rubber, and add another layer of metal mesh if it doesn't work, but this area must be calculated!" ”

Everyone was excited, and many times, as long as one change of mind, it was easy to solve.

At that time, the domestic car had just been developed, and several manufacturers found that they made a car, the dashboard will always reflect on the front glass, how to improve it, at this time, finally someone thought of comparing it with foreign countries, this look will find the trick, since it is reflective, then simply add a hood to the dashboard!

Now the same is the case, the downward inclination angle of the radar beam is too large, but the universal joint of the radar rotation cannot be adjusted, so simply work on this air intake hood, and modify a certain part of the lower part of the air intake hood to block the radar beam shooting to the ground.

How big this area is, it is very particular, too small, incomplete, too big, and it will lose too much energy, which has to be carefully calculated.

So, everyone started to measure at the scene, the inclination of the radar antenna, the height, and the size of the air intake hood, Qin Feng had already taken the chalk and calculated it directly on the ground with everyone.

I don't know when, Mr. Gu came over, and when he saw Qin Feng's performance, he was very satisfied, this is the real expert-level test pilot, not only to give back to the various problems of the test flight, but also to find solutions together, the most needed test pilot in China is such a test pilot!

The night covered the earth, and another tense day passed, Qin Feng had eaten and came to Mr. Gu's office.

"Mr. Gu, are you looking for me?" Qin Feng asked.

Mr. Gu nodded: "Comrade Qin Feng, I'm here to announce something to you." ”

Qin Feng's expression suddenly became serious, what did he want to announce to himself?

"One of our pneumatic teams went to our brother unit to blow the wind, and now, the data has been counted." Mr. Gu said: "To our surprise, the air resistance of the air intake on both sides is actually smaller than that of the nose air intake!" ”

At that time, Qin Feng raised objections to Mr. Gu, practice is the only criterion for testing the truth, and it cannot be thought that the air resistance of the air intake mode of the nose is small just by imagination.

According to Qin Feng's suggestion, the 601 Institute made a model of the nose air intake and the air intake on both sides, and went to the wind tunnel to blow it, and the results came out, and it was actually smaller on both sides.

For this result, Qin Feng has long been mentally prepared, the nose air intake is definitely a thing that should be eliminated, after all, look at the Western world, since the F105 fighter, the nose air intake has been completely abandoned, and the air intake has been fully turned to both sides, why?

It must be more effective to take air intake on both sides.

A fighter is composed of multiple parts, and if the nose air intake efficiency is high, then the designers in charge of aerodynamics will definitely insist on the nose air intake, and the designers in charge of radar will talk to the cannons.

But I haven't seen this situation, the West has completely abandoned the nose air intake, and it must be that this method has more disadvantages.

"It's not just a matter of the amount of resistance." Qin Feng continued: "Mr. Gu, I have been pondering for a while recently, when our aircraft is designed, the air intake should be as short as possible, and now our nose air intake, the air intake is the longest, which must have a negative aspect to the engine." ”

This is a new aspect that Qin Feng pondered, looking at the pictures of those F-15 and F-16 fighters in the West, you can find that the opponent's fighter has a very short air intake, almost through the engine.

The nose air intake, the inside has to leave the air intake, the result is a large area of space can not be used, if changed to both sides of the air intake, then the nose can free up a lot of space.

The benefits of air intake on both sides are great.

Mr. Gu nodded, and did not answer Qin Feng's words, and said: "Comrade Qin Feng, do a good job, after this blowing tunnel, our 601 Institute has finally decided to change our J-8 fighter to two sides of the air intake, that is, to imitate the nose of the MiG-23, which can also play your role." ”

Mr. Gu looked at Qin Feng with expectant eyes: "How about it, are you willing to join our scientific research team?" ”

Now, Qin Feng is still a test pilot, helping to test fly the J-8, and on the basis of the current J-8, it was changed to the nose air intake to create an upgraded version of it, that is, the J-8II. fighter, which must go through twists and turns, if there is a person like Qin Feng who knows both flight and technology, the progress will definitely be faster.

Qin Feng shook his head: "Mr. Gu, I'm sorry, I will help complete the test flight of our J-8, and then I will return to the original unit." ”

Although Qin Feng's emotional intelligence is not very high, he also knows that some words cannot be said directly, and in Qin Feng's mind, the model of the J-9 still occupies it.

How to improve the J-8, it is also a second-generation aircraft, and its airframe design limits the improvement of its performance, or rather, its concept is different.

It is built in accordance with high-altitude and high-speed indicators, and then look at the fighters that are being developed now, the pursuit of maneuverability, the pursuit of high angle of attack performance, and the relaxation of static stability, which are not what the J-8 can have.

Therefore, I prefer to devote my limited life to the J-9, which may be a little selfishness of my own.

Qin Feng thought secretly in his heart.

Looking at Qin Feng's expression, Mr. Gu also muttered in his heart, such a good young man, he must stay, he will definitely not look down on his own J-8 project, but his own J-13 will definitely open his eyes.

Now, let's move on to the test flight of the J-8.

In the afternoon of the next day, the improved air intake cone was finally processed, and Qin Feng once again skillfully piloted the J-8 fighter to take off, this time, after turning on the radar, there were no more bright spots on the screen.

It seems that this solution really works!

"006 report, radar interference gone." Qin Feng looked at his small screen and reported on the radio.

After speaking, he turned the nose of the plane, and a returning fighter plane appeared in front of him, and he stared at his screen, hoping to see the bright spots.

A target that can be seen with the naked eye is only ten kilometers away, and the radar should be able to detect it very clearly, right?

However, until the fighter plane flew in front of Qin Feng, there was nothing on the screen of this J-8, and the bright line continued to rotate, and there were no bright spots in sight.

"006 reports, radar unable to detect target."

Last time it was all clutter, causing the screen to snowflake, but now it's good, there's nothing on the screen, what's going on?