Chapter 547: U-2 Seminar
Just when everyone was at a loss as to what to do with this thin wire, there was a knock on the office door.

The person in charge of the guidance system went to open the door. He was the chief designer of the heavy anti-tank projectile model.

He had a strange expression on his face. One could tell at a glance that he was excited, but there was something else in his excitement.

"Boss Zhang, why are you here?" The person in charge of the guidance system said with a bit of curiosity and shame. Things were not going well on his side, which obviously affected the overall progress of the model, so the boss came over here.

As the chief designer of the model, Mr. Zhang is also very busy. What is holding up the heavy bomb research team is not just the problem of the wire, there are many other problems.

However, Mr. Zhang's reaction was a little beyond his expectations. He smiled happily: "Mr. Zhou, your problem is solved!"

Is there a way out? Did Mr. Zhang do it himself? That's not right. Mr. Zhang has great skills, but his major is obviously not in this field.

"Mr. Zhang, what do you mean?"

Mr. Zhang picked up a printout of the decrypted email in his hand: "The Fire Protection Committee just sent it to me today. It contains the solution to your wire breakage problem."

Hmm? Is there such a good thing? Normally, the Defense Work Committee would not ask about these specific tasks, but now they can't help but take action. It seems that they are really fed up with it.

Mr. Zhou immediately snatched the paper from Mr. Zhang's hand and read it carefully.

The solution on paper can be summed up in three words: "Add silk!"

These three words were both a sudden enlightenment and a bolt from the blue for Mr. Zhou.

Looking at the mechanics, mechanical properties, and electrical parameters of the wire given on the paper, it seems like it was customized for my own projectile.

As Chinese people, how could we forget this treasure passed down from our ancestors? It is light in weight, high in strength, and the raw materials are easy to obtain. Although it is not cheap, it is definitely not expensive compared to other exotic materials.

I feel ashamed that I keep my eyes on advanced materials and technologies every day, but I never thought that one of the oldest textiles could solve the most troublesome problems.

As for the actual therapeutic effect, there was a sentence on the paper that made Mr. Zhou secretly shocked.

"This type of reinforced wire has been tested and has not broken at a projectile speed of 230m/s."

There are two things that are shocking. First, I don’t know where the Defense Work Committee found this technology. The flying speed is a little faster than my own, but the test has already been completed.

Secondly, there are other equipment that also need to use this kind of wire, and the usage conditions and methods are similar to your own bullets.

"Mr. Zhang, where did this come from?"

"The Defense Work Committee didn't say anything. They just said that after receiving our report, they asked their sister units for the technology. By the way, the Defense Work Committee said that they were worried that we wouldn't have enough time to make the wires ourselves, so they also helped us get a batch of wires. We can use them first."

The National Defense Committee is so thoughtful, but this is just too much of a coincidence.

Not many equipment can use this kind of wire.

"Mr. Zhang, is there another unit making the same bomb?" Engineer Zhou's mind raced.

"The committee didn't say anything, so don't ask around. Regardless of whether it's true or not, it's rare that they're willing to lend a hand."

Yes, I almost made a mistake! Engineer Zhou put away his thoughts and quickly arranged for someone to go to Beijing to get the goods. The batch of goods from the Defense Work Committee must be brought back. Even if he knew this idea, it would take a long time from the idea to the qualified wires, which would waste a lot of time.

If you don't use a ready-made one, you have a problem with your brain. Now is not the time to care about face.

A week later, Mr. Zhang, Mr. Zhou and a group of people watched a test bullet flying out with flames. After flying for more than ten seconds, it plunged into a large pile of earth that had been prepared long ago.

A group of people used the most primitive method, starting from the end of the wire of the manual control box, and moving forward along the wire that fell on the ground towards the landing point of the bullet.

The further they walked, the better they felt. The thin wires were vaguely visible on the early spring soil. Although it was a bit difficult to find, what made them happy was that they were not broken!
When they followed the wire all the way to the big mound of earth, they were excited to see the wire piercing into the mound along with the projectile.

"Mr. Zhang, it's done! It works!" Engineer Zhou was happier than anyone else. Seeing the first obstacle of the guidance system being removed, as the person in charge of the guidance system, one can imagine how he felt.

"Well, next, you still have a lot of things to do! Don't waste time." They have all realized that there must be a piece of equipment that is doing the same thing as they are. Perhaps time is a matter of life and death for them.

When Mr. Zhou thought that he had only solved the problem of whether he could control it, and as for whether he could hit it accurately, there were still countless problems waiting for him, his face fell again.

Fortunately, they were imitating, which would definitely be faster than starting from scratch. Currently, there was only one anti-tank missile in China that could be imitated. No matter how powerful others were, their progress would definitely not be as fast as theirs. This made them feel a little relieved.

After solving one problem, you have to start from scratch to solve other problems. As the saying goes, the road ahead is long and hard, but we can start over again.

The comrades in the heavy bomb research group couldn't help but ignite the fighting spirit in their hearts.

Only this time, things might be much more serious than they thought.
-
Somewhere in the suburbs of Beijing, Mr. Xiao, who had been working in Beijing, finally got the comprehensive information of the Gong-5 and Gao Zhendong's suggestions, and re-produced the combat wind tunnel test data of the Gong-5.

During this period, he and his comrades who came to Beijing together risked their lives. With the help of comrades in the machining workshop of the Third Factory, he hand-made an aircraft model that combined a wing slat, simple wing-body fusion, and serrations on the leading edge of the wing.

And through his old classmate who worked in the transonic wind tunnel, he blew the wind at the fastest speed.

When his old classmate gave him the data, he smiled and said, "Old Xiao, what's the secret? This model doesn't look much different from the plane you made before, but the data is much better."

Mr. Xiao took the data sheet and quickly looked through it.

Due to the lack of experience and the good area law matching of the original Attack-5, General Xiao followed Gao Zhendong's advice and did not choose too large side strips to minimize their negative effects.

However, even in this case, the aircraft's transonic shock wave drag has further decreased, the lift at large angles of attack has also increased significantly, and the aircraft's instantaneous disk performance has been significantly improved.

The emergence of wing-body fusion further reduces the difficulty of area law matching. At the same time, the smooth fuselage does show a decrease in drag and an increase in lift-to-drag ratio in wind tunnel tests. Although it is a relatively conservative design and does not look particularly significant, optimization is optimization.

Moreover, this part of the optimization, combined with the increase in the internal space, there is no doubt that this thing can be done!

As for the leading edge serrations, Mr. Xiao can say that the wing blade can be reduced or even cancelled!
Although it is just a model that is not very accurate and not very deeply designed, the potential it demonstrates makes Mr. Xiao very satisfied. This not-too-troublesome change can basically improve the performance of the aircraft a little bit. If it really gets into detailed design, it may be able to improve it even more.

Don’t underestimate this “little bit”; a little here and a little there, when added up, can add up to a lot.

Holding the data, Mr. Xiao thanked his old classmates and ran to the guesthouse of the Defense Working Committee. He wanted to go back quickly to incorporate the changes in this data into the performance estimation of the Attack-5 combat type.

Fortunately, with the advent of confidential email, Mr. Xiao was able to enjoy the benefits of "working from home" and "remote collaboration" decades in advance.

Those who could provide him with support were not just the few people he brought to Beijing, but the designers of the entire Porcelain Flying Factory. Otherwise, even with the help of people from the third rolling mill and the third branch factory, he would not have been able to produce the new model so quickly.

He had to prepare everything for Gao Zhendong before the meeting. He had little to do with the Zhan-6, so he couldn't attend the seminar and could only provide ammunition.
-
Everyone was busy, and time was also passing for Gao Zhendong. Soon, he received a notice for a seminar on combat experience in shooting down the U-2.

Before receiving this notice, he had already made a lot of preparations, including contacting Mr. Xiao from the Cifei Factory.

Sitting in the meeting room, people around me were speaking one after another.

In fact, it is already quite clear that the Z-6 attacking the U-2 is not a completely reliable tactic. When the enemy aircraft reaches the practical ceiling of 24000 meters, it is somewhat dependent on luck. The altitude difference has almost reached the limit of the combat slant range of the Thunder-1 infrared air-to-air missile, but it is still possible to drive it away.

When the U-2 reaches its maximum ceiling of more than 27000 meters, it is basically out of reach, but the good news is that the U-2 can't do much at this ceiling, and it is very difficult to maintain this altitude for a long time.

The conclusion of fighting the U-2 is relatively clear. This leap tactic is a tactic that can effectively strike or suppress the U-2's activity space under the current condition of insufficient fighter ceiling. It is recommended that the Air Force units responsible for relevant combat readiness tasks generally carry out training in this tactic.

Moreover, it was different from what Gao Zhendong originally knew about the leaping tactics of the Z-6 to attack the Citigroup Firebee drone. Now this method of launching missiles was not that dangerous to the Z-6 itself.

Originally, the Zhan-6 was fired at with machine guns at the highest point of the jump. The recoil of the machine guns would cause the altitude that was already about to drop to fall even more sharply and become more uncontrollable.

But launching a missile is much better, as there is not that much recoil. The missile flies out by its own power, and it is not the aircraft's own speed loss that balances the momentum, but the fuel gas ejected from the missile's engine.

In this way, the situation of the Z-6 losing altitude can be much more controllable.

(End of this chapter)