Facing Qin Jingbin and Zhu Haifeng's somewhat embarrassed looks, Lu Jiadong didn't care, but glanced at everyone's faces, then looked at Zhu Haifeng, who was a little lost, and finally fell on Qin Jingbin, who was standing in front of him, and then pointed to the picture playing on the monitor, showing an indifferent smile, and then continued:

"What Director Qin just said is right, whether it is the previous 120mm armor-piercing bullet or the 100mm armor-piercing bullet that has just been tested, their shape is basically the same, and they can be called sub-caliber long-rod deshelling tail armor-piercing bullets!"

As soon as Lu Jiadong blurted out these words, several ammunition system developers standing on the side nodded in agreement, and the others present also recalled in their hearts the shapes of the two ammunition they had seen before, and the armor-piercing methods of the two ammunition recorded by the high-speed camera were not fundamentally different.

But even so, the more powerful 120mm armor-piercing bullet is not as good as the 100mm armor-piercing bullet, which makes everyone present puzzled, even the developers of the new tank ammunition system responsible for the development of ammunition, and compared with these two groups of people, Qin Jingbin, who wants to completely understand the cause of the failure, is even more so, so when Lu Jiadong's voice gradually fell, Qin Jingbin couldn't wait to ask:

"Chief Lu, since there is no essential difference between the two, how can there be such a big difference in the combat effectiveness of the two? In any case, the power of 120mm ammunition is always much greater, how is it possible?"

As soon as Qin Jingbin was halfway through his words, a pair of bookish handsome brows involuntarily twisted into a pimple, and his voice stopped abruptly, but his words were already self-evident, and the people around him also nodded, and then looked at Lu Jiadong in the center of everyone suspiciously.

And Lu Jiadong listened to Qin Jingbin's questioning. Instead of answering immediately, he walked over to the monitor that was playing the video he had just tested, leaned down and pressed a few buttons on its control device with great skill, and the monitor freezes, followed by a series of rapid playbacks.

And Lu Jiadong's hand quickly dialed back on the spherical scroll button on the control panel, when the picture fell to the moment when the armor-piercing bullet was about to hit the armor. Lu Jiadong suddenly stopped the scroll button in his hand, and then pressed a few more buttons, and the picture was suddenly magnified several times, and a slender and long conical long rod appeared in front of everyone's eyes.

From Lu Jiadong leaning down to the long-rod armor-piercing bullet presented in front of everyone on the monitor, the whole process took only a few minutes, but in these few minutes, Lu Jiadong's manipulation technique was more skilled and fast than the previous full-time control of this high-speed camera projector, which made several chief officials present The staff of this equipment were dumbfounded, they did not expect that the young chief designer could even make such the latest equipment with ease. In that case, what else did he not understand?

It's just that Lu Jiadong was surprised to operate this newly imported high-speed camera and playback equipment, and even more people didn't taste it carefully, or even didn't care at all, because their eyes and thoughts were all focused on the difference between the two types of ammunition.

And Lu Jiadong is the same. After all, in later generations, from basic video games to difficult mathematical model calculations, and related complex structural designs. Lu Jiadong's understanding and use of electronic products has long reached the point of perfection, because of this, this high-speed camera projection equipment, which is very advanced at present, is an entry-level electronic shooting and playback product in the future, as long as people who know a little electronic common sense can control it, it is even simpler for Lu Jiadong. So he didn't care too much about that.

When the picture was enlarged and frozen, Lu Jiadong stopped his hand, and then pointed to the slender long-rod armor-piercing bullet on the screen, but this time he did not ask Qin Jingbin, but looked at several ammunition system developers next to him and asked:

"Look at it. How is this long rod different from the long rod inside the 120mm armor-piercing bullet?"

"Different" After listening to Lu Jiadong's question, several developers of the ammunition system present couldn't help but look at each other a little, because in their opinion, the long rod on the image is almost exactly the same as the tungsten alloy metal projectile in the new 120mm sub-caliber shelling armor-piercing projectile, and there is no difference at all, but in the face of Lu Jiadong's question as the chief designer, these people are not easy not to answer, and finally one person replied with a little certainty:

"Is there a difference in material between the two? 100mm uses a denser, harder material?"

"They are all tungsten alloy, and the ratio is 90% tungsten, 7% nickel and 3% iron!"

"The materials should all be the same!" As soon as Lu Jiadong's voice fell, Zhu Haifeng, who had always remained silent, suddenly said: "The alloy material of the projectile body is from our Hunan Special Steel Factory, and our factory has only produced such a tungsten alloy material from beginning to end, as for other high-hardness alloys, at least in Xiangnan!"

You must know that almost all the metal materials of the new tank are developed and produced by the Shonan Special Steel Plant, from high-end cannon steel and armor steel, to ordinary steel for rivets and screws, there is no steel that does not come out of the steelmaking furnace of the Shonan Special Steel Plant, and the same is true of tungsten alloy in the new anti-tank ammunition, and because of this, Zhu Haifeng, who is the deputy director of the Shonan Special Steel Plant and is also responsible for the development of the new armor, knows very well that ordinary homogeneous armor is impossible to cope with this extremely hard alloy metal.

That's why he accepted Lu Jiadong's proposal to cooperate with Qin Jingbin to develop composite armor, and during this period, he also paid considerable attention to the dynamics of the ammunition system, and knew very well that there were no other new high-hardness alloys after tungsten alloy, so Zhu Haifeng would say this with such certainty.

In any case, a chief designer and a person in charge of the production and research and development of new tank materials, the two authoritative answers were irrefutable, so several people could only look at each other again.

But at this moment, a voice that was not very confident but a little timid came from the back of the crowd: "Is the tail a little different from the tail fin?"

Listen to this sentence. Everyone present was stunned for a moment, and then followed the prestige, only to see a young man standing timidly on the periphery of the crowd, seeing everyone's focused eyes, the original white face suddenly rose red like a ripe red apple. At this time, several ammunition system developers all showed a look of joy and surprise when they saw this person, and one of them blurted out in an excited tone:

"Xiao Dong, why are you?"

"It's Comrade Dong Fangzhuo!" Before the man could finish speaking, Lu Jiadong's calm and firm words interrupted him, and then he looked at the young man who was about the same age as himself not far away, and then gave an encouraging smile, and continued:

"That's a good point, keep going!"

Standing outside the crowd was none other than Zhao Rusong's assistant Xiao Dong, but what he didn't expect was that Lu Jiadong, the chief designer who was high in his eyes and had always been regarded as an idol, would call out his name with one mouth. This made Dong Fangzhuo so excited that he didn't know what to say, and it wasn't until several ammunition system developers reminded him that Dong Fangzhuo came back to his senses, but the excitement on his face was still overflowing, so that the tone of his voice trembled slightly, making people think that the young technician was nervous:

"Three pieces are right, that's right, it's three, it's three"

"What three pieces of two. How much impact does this thing have on combat effectiveness" Seeing that Dong Fangzhuo was a little incoherent, Qin Jingbin on the side was a little impatient. It's just that before he finished speaking, Lu Jiadong glanced at him obliquely, so that his next words could only stop in his throat, and seeing that Qin Jingbin no longer spoke, Lu Jiadong turned his head to Dong Fangzhuo's side, and a warm smile appeared on his face. Nodding his head, he continued:

"Go on!"

With Lu Jiadong's encouragement again, Dong Fangzhuo's face also had a little more confidence, and the excitement just now calmed down a little, so he spoke more methodically:

"The so-called three pieces refer to the new 120mm sub-caliber deshelling tail armor-piercing projectile body tail with only three tails. However, there are five pieces of the tail of the projectile body on the screen, and the length and shape seem to be thinner and longer than the 120mm armor-piercing projectile body we developed, and the flight resistance will be smaller, but" As he spoke, Dong Fangzhuo's brows gradually furrowed, and then he shook his head slightly, and continued with a rare affirmative tone:

"It's just that this difference is not big, and it must not be the real reason!"

After listening to Dong Fangzhuo's words, all the people present nodded in agreement, only Lu Jiadong's slightly excited face from before, once again returned to his previous calm expression, such a change in expression is not obvious, it is difficult for others to notice it at all, only Wu Tianming, who has been following Lu Jiadong and knows him well, completely looks at it, and can't help but sigh in his heart, it seems that Dong Fangzhuo is one step away!

Wu Tianming's speculation was quickly verified, and as soon as Dong Fangzhuo's voice fell, Lu Jiadong pointed at the bullet body on the screen with his slender and powerful big finger, and suddenly raised the tone:

"It's just that the tail, diameter, and length of the projectile are different, but the ultimate reason for the difference in effectiveness between the two is in these three inconspicuous elements!" (To be continued.) )

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