"Oh, and this, tell me about ......."

Li Longyun came to the momentum.

Zhao Xingbang also came to be interested......

The other members of the military representatives were also excited.

The leaders of the base and the people of the 2186 factory and the 2109 factory were confused.

Listen to what Liu Yue said!

It is actually said that if the shell is changed, it can be fired to 4 or 50 kilometers with heavy artillery!

Liu Yue: This is getting more and more regressive.

Ignoring what the people at the base thought, Liu Yue knew what they thought.

Those who engage in missiles look down on those who engage in rocket artillery, and those who engage in rocket artillery naturally look down on those who engage in artillery shells......

"Chief, it is true. In the course of the experiment, I discovered this problem......" Liu Yuetian said shamelessly, he knew that the domestic heavy artillery had not been studied too far in recent years, after all, there was little contact with Western technology. "If we want to increase the power of rockets, we need to solve the problem of range and accuracy. In particular, the firing range requires not only a propellant with higher combustion efficiency, but also efforts in aerodynamics and the design of the shape and structure of the projectile. This increases the range and accuracy of the rocket......"

Liu Yue didn't prepare to mention artillery.

Who told Zheng Jianguo to open his mouth and talk nonsense about 12,000?

Can this thing be nonsense?

Something that is absolutely confidential!

Of course, artillery shells are not much different in essence from rockets.

Rockets are actually the development of artillery shells.

Artillery shells do not need to consume fuel during flight, and are propelled by the energy in the barrel, while rockets use the fuel consumed in the barrel to consume during flight.

In the end, it was all about dropping the warhead into the enemy's positions.

"This ......"

Lin Qiyang looked at the few people in Factory 2186.

Several people in Factory 2186 turned their heads to the side, looking like we didn't know Liu Yue.

What a shame!

Previously, Zheng Jianguo and others supported the 300-mm multiple rocket launcher project.

Liu Yue is now actually starting to degenerate in the study of shells, which is really too much of the share of the 2186 factory.

Lose face!

"Liu Yue, we are a unit engaged in rockets, and artillery shells are made by other brother units! Besides, you are learning from Dean Qian and them!" Zheng Jianguo couldn't hold back after all.

Zheng Jianguo knew that if Liu Yue's plan moved the head of the troops, how many production tasks would be added to 2186.

But he still thinks it's too bad to study cannonballs!

Even if Liu Yue engaged in individual rocket artillery, or even individual rocket launchers, they all felt that it belonged to rocket artillery, which was in line with the profession of the 2186 factory.

In the first batch of graduate students after the resumption of the college entrance examination, Liu Yue actually did not do his job, did not engage in rocket artillery, did not engage in missiles, and began to ponder artillery shells......

Before Liu Yue could open his mouth, Li Longyun seriously criticized Zheng Jianguo: "Director Zheng, this is not a shame! If only improving the design of artillery shells can increase the firing range, how much effect will this have on national defense?"

With the progress of science and technology and the development of the war situation, the distance between the enemy and the enemy has become farther and deeper, the various fortifications have become stronger and stronger, and the infantry formation has been more dispersed.

Heavy artillery used for front-line support cannot effectively support front-line troops if its range and power cannot keep up.

The artillery research and development units under the army are pondering the issue of increasing the firing range of the artillery.

Liu Yue proposed that the range of the cannon could be increased, and only the ammunition could be improved, which head of the army was not interested?

Zhao Xingbang also said excitedly: "Comrade Liu Yue, tell me what you think. ”

Zhao Xingbang spoke, and no one else could stop it.

Liu Yue could have provided a simple theory to the units that studied artillery shells for research, so as to increase the range of artillery, and it would not cost much to solve the problem.

And the troops gave them an order for the 2186 plant, and he naturally knew what was going on.

To the north, the Soviets had millions of soldiers, armored clusters, and thousands of advanced fighters......

There is no comparison with the USSR, PLA.

The number of domestic equipment for tanks is not more than 10,000, the number is small, and the performance is not advanced.

So, the artillery is the strongest.

However, at present, the artillery unit of the PLA is mainly equipped with the Type 59-1 130-mm cannon howitzer, with a maximum firing range of 27 km, and the Type 66 152-mm cannon howitzer with a larger caliber, even if the caliber is larger, but because it uses the Type 60 122 mm cannon mount, the barrel is simply replaced, and for the sake of convenient logistics and maintenance, it has 60% of the parts and components common to the Type 59-1 cannon, and the result is that the 152 gun, which has the largest caliber, has a maximum firing range of only 17.4 km.

It is not as good as the Type 60 122-mm cannon, although the caliber is much smaller, and the Type 60 122-mm cannon has a maximum range of 24 km!

The range of artillery in all countries is increasing, and if there is not enough artillery, rocket artillery will make up for it, and rocket artillery is also artillery anyway.

The domestic industrial base is weak, and in addition to the deterrent east wind of mushroom bombs that guarantee peace and mushroom bombs to the enemy's home, fighter planes are lagging behind, tanks are lagging behind, and warships are even more backward......

Even the artillery, it is lagging behind......

And then, the crazy rabbit, went further and further on the road of no return to artillery, and in the end, PLA artillery became the first in the world.

When exactly did it start that the development of artillery was so important in China, Liu Yue has heard a lot of sayings.

Some people say that after the great powers bombarded China with cannons, bringing a hundred years of humiliation, flower growers had a paranoid love for cannons......

Some people say that during the period of the Red Army, the troops only had light firepower and were backward in assembly, and the generals who came from the Red Army period gritted their teeth and said that in the future, when we are strong in the future, we must produce more artillery......

Some people also said that in the War to Resist US Aggression and Aid Korea, the heavy artillery and rocket artillery of the US army made the commanders of the volunteer army, who were not equipped with many artillery, feel that artillery is firepower, and when the country is strong, it must be equipped with artillery that is more advanced and powerful than that of US imperialism......

Some people even say that it is because Bismarck, the prime minister of the Iron Army, said that the truth is only within the range of cannons.

One way or another, by the end of the day, PLA artillery was definitely the most powerful in the world.

Even with the continuous introduction of high-tech equipment into warfare, artillery is still powerful, and its power, accuracy, and range are world-class.

Liu Yue knows better than anyone that there is actually only one reason - cheap!

The PLA, which is accustomed to thrift, is not willing to call for air support when encountering a pillbox from the enemy.

During the exercise, as long as you encounter a fire fortress, you can directly let the helicopter drop a few cannons, and a few shells can easily be solved.

What a way to save money!

Liu Yue quickly flashed these things in his mind, quickly came back to his senses, and said directly: "Chief, in fact, there is no essential difference between rocket artillery and artillery shells, except that the engine is installed at the tail of the shell...... The engine works, and a large amount of gas is quickly ejected backwards, creating thrust and allowing the rocket to fly towards the target......"

Liu Yue paused when he said this.

Seeing that everyone didn't frown and could understand, he continued: "Using fuel propellant to propel the rocket to reach its destination, in the study of the aerodynamic changes of the rocket during the flight, it was found that during the flight of the head of the rocket, the pressure generated by the air on the warhead slid along the outside of the rocket, and if it could not quickly converge at the tail, the air in the tail would be thinner...... The higher the efficiency of the rocket, the thrust force of the tail is much greater than the pressure of the air on the warhead, thus improving the flight speed and stability......"

Liu Yue said this and paused again.

Because some people don't understand!

He didn't say artillery shells, but rockets, because rockets and missiles are more in-depth in aerodynamics.

"Go on!" Zhao Xingbang motioned for Liu Yue to continue.

"Throughout the flight, the head and tail of the rocket form a differential pressure resistance. The greater the differential pressure resistance, the higher the air pressure formed by the head air flow and the lower the tail air pressure, which will seriously hinder the range of the rocket...... It's the same principle as a cannonball. After the cannon is discharged, because it does not produce thrust, the air pressure at the tip of the warhead is much greater than the pressure at the tail due to the violent friction with the air during the flight, which will consume the kinetic energy of the shell in the foot...... As a result, the shell gradually deviates from the target during the flight, and even due to the consumption of kinetic energy, it finally falls downward under the influence of gravity, forming a parabolic ......"

What Liu Yue said is all basic things.

It's about aerodynamics, physics.

Regardless of whether others could understand it or not, Liu Yue continued: "So, if you add a simple structure to the bottom of the shell that can exhaust backwards, like a rocket, you can make the shell fly farther...... Of course, it is also feasible to add a rocket engine to the shell to generate a reaction force to achieve the purpose of extending the range. ”

Liu Yue said that the concave range extension and the rocket range extension are two ways to extend the range of artillery shells in the future.