In 7701 Institute, Qin Guan stayed for two days. By the next day, he had studied the detailed problems.

At this time, Qin Guan brought out some materials for your reference. When you saw these design drawings, everyone praised them one after another. With these drawings, the progress of the project will be faster.

At the same time, the subsystems also began to assign tasks. For example, the most difficult one is not the shipborne helicopter, not the air defense missile, but the near defense gun with high firing speed!

This near defense gun was developed by the subordinate 7713 Institute.

After leaving Huating City, Qin Guan went straight to 7713 Institute. The development progress of this near anti gun is of great significance.

Of course, this is not only for several foreign trade ships, but also for the development of domestic warships.

Accompanied by General Zhao, he came to 7713 Institute with Qin Guan. When he sat in the conference room of the Institute, he was not surprised. He was faced with bitter gourd faces.

"Mr. Qin, I came back from Huating and held several meetings in succession. Everyone felt that it was very difficult." naturally, someone from 7713 Institute also attended the meeting in Huating. It was director Yang here. At that time, he could not speak. He just arranged a task for him. After receiving the task, director Yang returned here and was faced with complaints.

"Lao Yang, this is the organization's trust in 7713 Institute. If you don't want to do it, we'll give it to others. At that time, you have no projects in your institute. If you're removed, don't say I didn't remind you." General Zhao around Qin Guan already spoke.

When he said this, director Yang's face became darker: "Lao Zhao, it's no use for you to put pressure on us. This project is too advanced. Our current level is only a double mounted 37mm gun. We don't have any reserves. What can we do? We can't do 7713, let alone others."

The domestic 76a double mounted 37mm rapid fire gun is also the domestic advanced equipment just developed. The initial speed is 1000m / s, the maximum range is 9400m, the effective range is 3800m, the firing speed is 800 rounds / min, the ammunition storage is 1600 rounds, and the ammunition chain is automatically supplied.

Look at other guns. Now the cover is still open. We have at least realized remote control shooting. Now, if we want to turn the tube at once, we really can't find this technology in the whole country.

Qin Guan nodded and knew that everyone's concerns were justified.

Domestic technology is indeed backward. Look at later generations. Domestic warships in the 1990s are also equipped with close defense weapons. Double mounted 37mm guns are as backward as they are.

Later, modern class destroyers were introduced into China. The modern class was equipped with four six tube AK630 rapid fire guns as near defense weapons, which was the active system equipment of the Xiong Navy at that time. The initial speed of the gun was 900 m / s, the firing speed was 5000 rounds / min, and the effective range was 3800 M. all indicators were significantly better than 76a, and the range and power were even higher than the "dense array". The introduction of this rapid fire gun made the near defense system of the Chinese Navy close to the world advanced level.

Later, the 730 gun developed by the Han state came out. Compared with the 630 gun, this gun has one more gun barrel. Therefore, many military magazines say that it was developed on the basis of the 630 gun. In fact, there is no direct relationship between the two, because their principles are fundamentally different.

The automatic mode of AK630 is not the "Gatling" type of external energy, but uses gunpowder and gas as the energy source of mechanism action like a machine gun. It can be regarded as a large 6-Tube machine gun. The advantages are simple structure, low cost and small volume, but the firing speed is limited, and the accuracy is not as good as the "Gatling" type near defense gun.

At the same time, the AK630 artillery and control radar are placed separately. Like the dense array, the 730 artillery is integrated, which is easier to install and saves penetrating the deck.

Therefore, the principle of the 730 gun is more similar to the dense array. Of course, its appearance is nothing like the dense array. To find an imitation object for it, the gun system mainly draws lessons from the 7-tube gau-8 on the "goalkeeper", that is, the gun on the eagle A-10 attack aircraft. However, the ammunition, radar, photoelectric and fire control systems are self-developed.

It is only in the 1980s, and the navy can only cope with this kind of dual mounted artillery. If we want to build 11 barrel artillery immediately, it is definitely an enlarged satellite. In short, no scientific researchers have confidence.

Qin Guan looked at the people's faces and said, "there are indeed many problems. It is precisely because of the problems that we have to summon up courage and confidence to catch up with the world's advanced level!"

"Mr. Qin, we know what you mean, but we don't have any reserves for these 11 guns," said director Yang.

"If we don't have 11 tubes, let's start with 6 tubes or 7 tubes. If we do a good job, we can add gun tubes." Qin Guan said: "There are always 6-Tube or 7-tube mature guns abroad? Well, for example, eagle's A-10 attack aircraft, there is a 30mm gau-8 7-tube Gatling machine gun on it. Our northern industrial company is responsible for introducing this machine gun from abroad and copying it by our research institute. Do you have confidence?"

Qin Guan knew it was difficult, so he didn't make it difficult for them. The first thing he needed was artillery. Let's solve this artillery!

It's not easy to get a seven tube Gatling? Even without the system, now I have a way to get it from the international arms market. A c801 missile can be exchanged!

A-10 attack aircraft is a professional ground attack aircraft. Its main task is to attack armored targets on the ground. This set of machine guns is its sharp weapon to hit the ground.

The depression angle of machine gun installation is 2 °, and 1350 rounds of ammunition are available. The whole machine gun system weighs about 1.8 tons. The firing speed is 4200 rounds / min. the ammunition is supplied in the form of double end closed chain free ammunition supply. This machine gun is just right for imitation!

If you give them a prototype and they don't dare to copy it, they can only ha ha.

"Mr. Qin, do you mean that our machine guns adopt Gatling principle?" director Yang asked.

Now is the initial stage of proposal. What principle does this multi barrel gun adopt? Gatling needs external energy, so it is very difficult to develop and the cost is very high. However, the effect must be much better than the gas rotating rotary tube machine gun.

"Yes, it's Gatling style, which can ensure high shooting speed," Qin Guan said.

Director Yang frowned, hardened his scalp and said, "we can try."

"Lao Yang, are you so unsure?" General Zhao said, "when can we military workers be so discouraged? Take out your courage 20 years ago. How did you take everyone to repair naval guns at that time?"

At that time, director Yang suddenly felt a sense of pride in his chest: "yes, what are you afraid of? Let's take this job. Even if we are tired to live less than 20 years, we should complete the task on time!"

What he fears most is the construction period. The time given is very short! But now, he is finally not afraid of anything.

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