As for netizens overseas, they shook their heads and thought that Zhang Jiange was simply a stupid guy.

How foolish it is to risk your life and betray your country just for $5000.

If they were asked to do so, they would have to have at least tens of thousands or even hundreds of thousands of dollars to be qualified to take risks, but in the end they took risks for a mere 5000 dollars.

So they all shook their heads at Zhang Jiange, thinking that Zhang Jiange was simply too stupid.

Of course, while they thought Zhang Jiange was too stupid, they couldn't help but think that Daxia's super-electromagnetic gun technology should be very strong.

Otherwise, why would the United States try every means to obtain the technical information of Daxia's electromagnetic cannon through the spy Zhang Jiange?

All this is because Daxia’s railgun technology is very good, at least in some aspects it is worth learning from the United States.

As they had this concept in mind, an additional label "The Railgun is OK" was quietly added to the impression label of Daxia.

Of course, while people were talking about it, the time for the experiment was approaching.

Especially when Lin Feng and Colonel Hao Yang appeared in the live broadcast room, netizens quickly quieted down.

"Report to the commander, we are ready, please give instructions!"

A middle-aged man in military uniform, with the rank of second lieutenant and wearing black-framed glasses was holding up a report.

Looking at his appearance and expression at this time, netizens can tell at a glance that he is the head of a technical branch, but they don’t know his name, and there is no introduction in the live broadcast room.

Of course, people's attention soon shifted away from him and instead focused on Lin Feng and Colonel Hao Yang.

Colonel Hao Yang looked at the mechanical watch in his hand, then turned to look at Lin Feng and said:

"Mr. Lin Feng, we can start now."

"Ah."

Lin Feng nodded slightly, then pointed at a few cameras and said:
"Good morning to all the friends around the world who are watching this live broadcast. This time we are going to conduct a test firing of the electromagnetic gun.

This is the first generation of electromagnetic gun that I developed and manufactured urgently in these three weeks.

This super-electromagnetic gun is an experimental model, and it has not developed a special fully-automatic bullet-replacing device and a fully-automatic aiming device.

After all, it is just an experimental model of super-electromagnetic gun. There is no requirement for actual combat, so there is naturally no need to develop a special fully automatic rapid-reloading device.

If the first-generation railgun is successful, the next official version, the second-generation railgun, will naturally have a quick-replacement device and a fully automatic aiming device.

By then, it is expected that the second-generation super-electromagnetic gun will be able to fire more than 120 rounds per minute. After all, the super-electromagnetic gun does not have the gunpowder residue problem of traditional artillery and does not require the barrel to be cleaned.

Therefore, the firing speed and long-term firing performance of the electromagnetic gun are actually far superior to traditional artillery.

Of course, the premise of all this is that the super-electromagnetic gun uses pure single-walled carbon nanotube super wires or copper/single-walled carbon nanotube alloy wires.

If it is ordinary copper wire or other traditional metal wire, it is still very easy for the wire to overheat and burn. "

Lin Feng paused slightly when he said this, and after people had digested what he had just explained, he explained the performance of the first-generation railgun.

"Next, let me introduce the general situation and performance parameters of the first generation railgun.

First of all, this first-generation railgun is a coil gun. The advantage of a coil gun is that its energy utilization rate far exceeds that of another type of rail gun, but its disadvantage is that its structure is complex and its cost is higher. Secondly, the caliber of this first-generation railgun is 254 mm, and the maximum speed of the shell can reach 10 times the speed of sound, that is, the shell is 3400 meters per second.

As for the minimum speed of the artillery shell, it can reach 7 times the speed of sound, which means that the artillery shell travels at 2380 meters per second.

Whether it is 10 times the speed of sound or 7 times the speed of sound, their performance has surpassed the speed of shells of various traditional types of cannons in all aspects.

After all, the upper limit of traditional artillery shell speed does not exceed 2000 meters per second, so even the weakest mode of 7 times the speed of sound is far beyond traditional artillery.

In addition, compared to traditional artillery, one of the advantages of our first-generation super-electromagnetic gun is its rate of fire. Traditional artillery has a higher shooting principle.

所以其射速受限较大，以055驱逐舰上的HPJ-45型130毫米舰炮为例，1分钟发射40发炮弹就顶天了。

On the contrary, the railgun is different. Due to the advantages of its working principle, it can easily fire more than 120 rounds per minute.

Of course, you may not understand what I have said, and you may not even understand what 7 times the speed of sound and 10 times the speed of sound mean.

Let’s put it this way, the world’s fighter jets are now proud of their supersonic fighter jets, and the most powerful fighter jets right now are the fifth-generation fighter jets.

Take the fifth-generation fighter F-35 produced by Lockheed Corporation as an example. The maximum speed of this fifth-generation fighter F-35 is only 1.6 times the speed of sound, which is 1.6 Mach!

The maximum speed of the missiles it carries does not exceed 5 times the speed of sound. What does this mean?

This means that once locked by the super-electromagnetic gun, neither missiles nor airplanes can escape the attack!
Because speed is justice!

The speed difference between them and the electromagnetic cannonball is so great that once they are targeted, there is no way to escape!"

After hearing Lin Feng's words, the onlookers at the scene and the 3000 million netizens on the Internet were instantly shocked.

Using the fifth-generation fighter F-35 as a model case, they finally understood the meaning of 7 times the speed of sound and 10 times the speed of sound.

I also know the significance of the birth of this railgun.

So in addition to being shocked, they looked at the railgun in the video with curiosity and enthusiasm, wondering how powerful it was.

But unfortunately, they were destined not to be able to see the actual combat test of the railgun now. Lin Feng continued to smile and said:

"Okay, there's still something I haven't finished explaining. Next I'm going to introduce the railgun's shell system.

There are two types of super-electromagnetic cannon shells that we have currently developed, namely pure metal shells and high-explosive shells.

The pure metal shells are made of stainless steel in order to achieve maintenance-free life for more than ten or twenty years, and weigh up to 124 kilograms (273 pounds).

The price is only 2000 yuan per piece, which is less than one-seventh of the cost of traditional 155mm artillery shells!

Of course, once we reach wartime or special periods, we can actually use ordinary steel materials, which can further reduce costs.

The high-explosive shells from the railgun that come after this are a bit more expensive, after all, they are filled with high explosives, and the interior needs to be hollowed out for fine processing, which is a rather cumbersome procedure.

Although fully automated equipment such as seven-axis machining centers are widely used in fine processing, the cost is still very high.

So in the end, the price of a high-explosive shell rose to about 6000 yuan, but compared with the prices of other shells, it is still acceptable. "(End of this chapter)