In the past few days, the US tanks have shown their power. The soldiers on the Japanese frontline are also very clear that the power of these tanks is almost no way to deal with the attacks of these tanks. Their previous desperate efforts are no longer able to deal with these tanks, and now they can only adapt to the situation.

What they didn't know was that there were anti-aircraft machine guns aiming at these tanks above the rear position, and these were even more feasible than the rocket launcher.

The US military did not realize this at all. They rushed towards the Japanese position surrounded by infantry, and have compressed Juno's position to a range of 7 kilometers. In the eyes of the US military, it is already within the range. It seems that with just one charge, they can rush over, but they don't know that at this moment, they are about to face the biggest crisis.

The attack time of the US military is slightly different. The anti-aircraft machine gun has not entered the range. At this moment, it cannot kill the enemy to a large extent. Although even the 12.7mm anti-aircraft machine gun has a range of more than 5 kilometers under condescending conditions. The anti-aircraft machine gun must hit at least 2ooo meters above, throwing gravity. Such an anti-aircraft machine gun has a doubled range. Basically, it can hit the tank. However, if you want to concentrate the key points, this possibility is not great. Without the other party realizing that China's anti-aircraft machine gun can pose a threat to tanks, the anti-aircraft machine gun troops will patiently wait for one US tank after another to enter the range.

The tanks are gradually approaching, and even the artillery fire in the rear is still conducting a covert attack on Japanese positions. The raging artillery fire seems to have changed the color of the world. As long as these positions are used, the US military will liberate the entire Juneau, and there will be no problem.

The combination of tanks and infantry shows different power to a certain extent. Even if the exchange ratio increases several times, the US military will successfully capture Juno. In a silent manner, Japan has become the biggest enemy of the US military.

In the US tank camp, Tom is a tank player. It has been 4 months since he arrived in Alaska. He survived fortunately from the bloody war before. Tom was not in great danger in the constant loss of the war. In this sense, he was very lucky, but he was unable to escape in this battle. As the first group of people to rush to the forefront of the Japanese position, he was preparing to make achievements, but he did not know that a very dangerous weapon for the tank was aiming at it.

Under the escort of infantry, the tanks slowly moved forward, under the rocket launcher and simple anti-tank weapons, which was impeccable. The area where the infantry dealt with tanks is within 50 meters, and the rocket launcher is within 20 meters. Outside 20 meters, the tanks only need to notice the underground tank trench. Unfortunately, they didn't know that a brand new anti-tank weapon was aiming at them. Under the anti-aircraft machine gun, all of these were targets. The shooting of anti-aircraft machine guns basically made the tank unable to escape, and the range was as high as 5 kilometers, at least within a range of 5 kilometers. The tanks could not withstand the armor-piercing ability of anti-aircraft machine guns. As long as the anti-aircraft machine guns start to attack, they would be finished.

The 12.7mm anti-aircraft machine gun is placed in it. Even in later generations, it is very difficult to install armor-piercing shells in such a small caliber bullet. The larger the shell, the easier it is to pierce armor-piercing shells. Of course, the more difficult it is for naval guns to deal with. The more warships or fixed 6-ground defenses, the armor-piercing ability is much greater than that of ordinary shells. In this case, the armor-piercing of naval guns also requires careful consideration. The steel core used is not simple. The steel core of ordinary strength must be based on the steel core of ordinary strength, and the hardness and penetration are increased so that they can deal with fixed targets and turrets.

The armor-piercing projectiles of anti-aircraft machine guns are easier than those of large-caliber naval guns. It is really not easy to produce armor-piercing projectiles with a real 12.7 mm anti-aircraft machine gun. Ordinary steel cores cannot be achieved to a certain extent. If the strength is not good, it will cause the armor-piercing capacity to be weakened. It is really small to a certain extent. This armor-piercing projectile is not much different from the use of armor-piercing projectiles.

Even in later generations, the 12.7 mm high-emitter extremely strong armor-piercing bombs were a difficult point. Generally, countries solved the problem of more than 40 mm, but China solved it. The reason is very simple. China has the existence of an all-in-one machine. In terms of materials and in some subtle places, it has passed this era and even surpassed later generations.

If other technologies must be based on the basics. Only with sufficient basics and analysis of technology can we intervene in that area. Without basic technologies, it is almost impossible to access that area. However, materials are an exception. Materials themselves are things that are gradually born between accidents and necessities. Many things are sometimes just a coincidence. Even some cutting-edge materials in the century may not be able to be produced in the second century. Although the cost of materials requires much higher than other technologies, accidentality determines that the production of materials can be completed in the early 20th century.

For example, for example, Bailangduoxi, this dye born in the 18th century, no one knew that it would be the predecessor of sulfonamide. Although its effective ingredient is just a metabolite of Bailangduoxi in the human body, it has its effect. This antibiotic, as early as the 19th century, or even earlier in the 18th century, had appeared in front of people, but people did not realize its effect. Even in the century, some very ordinary materials might have other uses, but people did not realize it...

The successful effect of the all-in-one machine has analytical effect, allowing many things to have complete uses, and even some things that have appeared before have unique effects in specific environments. Under such circumstances, these things have been successfully used in all aspects of China, and the same is true for armor-piercing bombs. Yang Yuanzhao insists on researching materials every day. Most of them are waste materials every day and cannot be used in China's production. However, every three or five or seven days, there will be a material that can be used. Within a few years, the materials owned by China have surpassed the future generations.

A simple armor-piercing shell is just a steel core. The shell below 20 mm is made of h35 steel. This appeared in the universal suffrage of all-in-one machines. After the identification of all-in-one machines, it is currently a material with the highest hardness, corrosion resistance and heat resistance among steel varieties. Its strength is more than several times that of ordinary steel, and its hardness and high temperature resistance are very high. It is widely used in Chinese weapons and some civil facilities.

Because steel has added a certain compound, it is not difficult to synthesize as long as it is found. It is only used in a furnace of steel and adds some additives. After clearly knowing his formula, China has developed a production method for this type of steel. Its price, because of the many precious additives, is a little higher than ordinary steel, but is still within an acceptable range.

However, when applied to weapons, especially armor-piercing bombs, the performance of this steel has increased the performance of China's armor-piercing bombs by more than 3 times. The hardness and heat resistance make this steel a standard configuration for armor-piercing bombs. To a certain extent, the processing of this armor-piercing bomb is very difficult. Such a high-hardness and extremely heat-resistant metal is very difficult to process. It was only formed at one time and loaded into a large-caliber naval gun.

However, the scanning function of the all-in-one machine can easily see the basic performance of these materials. In Yang Yuanzhao's memory, this H35 steel is even slightly more prominent than the steels in later generations. It can be said that it is the most suitable for making armor-piercing bombs. In later generations, Yang Yuanzhao was just an engineer in a fleet and did not intervene in the military industry. He did not know what the strongest armor-piercing bombs in later generations were. In the current world, h35 steel should be the strongest steel, and even ordinary methods could not be processed.

Fortunately, the all-in-one machine not only shows his excellent performance, but also some of his weaknesses. As long as the synthesis is successful, such a steel will be formed at one time. The hardness is above ordinary diamonds and has a high temperature resistance. It directly catches up with tungsten alloy. Once this alloy is made, it will be difficult to process. This is originally his weakness. Without the all-in-one machine, he may become an excellent alloy that was born by chance and cannot be applied to weapons.

However, the all-in-one machine completely demonstrates its performance. Not only does it have extremely strong hardness and temperature performance, but it can be processed with its unique performance in specific situations. The biggest weakness of this alloy is that at low temperatures, when below zero degrees, its hardness will be weakened, almost to the level of ordinary steel. In other words, if the temperature is reduced to this level, it can be processed.

Although China has high-strength alloys for powder smelting, the hardness index of this alloy is only one degree higher than that of the steel of this armor-piercing bomb. It can barely process this alloy, but the loss is huge. The performance of low temperature gives this metal a convenient processing method. It can reach the strength of ordinary metal at low temperature, that is, it can be processed with ordinary tools. Although the cost of maintaining low temperature is greater than that of ordinary processing, it is much better than that of the top-level tools. Although China's industrial production capacity is very strong, producing these tools is not a problem, but China's industry is full of things, and this top-level tool can be applied to many aspects.

Even though China's materials science is the best in the world, its production is still based on all-in-one machines, especially the tools produced by powder smelting. China's industrial production is very complex. Even if the all-in-one machine is upgraded to its current level, it is still full of production every day. Instead of consuming a lot of tools, it is better to produce at low temperatures. This is not difficult for Chinese technology to achieve.

With the help of the unique characteristics of h35 and the weakening of strength at low temperature, the steel core of the armor-piercing bomb was obtained by passing it at low temperatures. Although the processing is relatively difficult, it is not something that ordinary factories can process, making its price three times higher than that of ordinary armor-piercing bombs. However, such weapons have been several times higher than traditional armor-piercing bombs. This is a huge breakthrough in anti-tank weapons. China has produced many of them for this purpose, and it has also been transported to Alaska due to the plan.

It is relatively slow to carry by transport ships. Some armor-piercing bombs are carried by transport ships, and most of the remaining ones are transported by transport aircraft. Currently, each anti-aircraft machine gun has at least 5 ooo armor-piercing bombs of more than 5 ooo, which is fatal to US tanks.

The US tanks had not yet realized that the armor-piercing power in this era was to put it bluntly, it only resisted the firepower of ordinary machine guns. The huge turret above, and the thickest part was only about 4 cm, which is 4 o mm and 4 cm, which does not mean that the protective strength was 4 o, because this is ordinary cast iron, and the surface was strengthened a little at most, but the strength was limited. The reason why the machine gun bullets could not deal with was its thickness. However, the 12.7 mm machine gun had its armor-piercing ability above 25. The armor-piercing bullets were tripled to 75 mm, which means that nothing could stop him.

The distance of 3 kilometers is no longer clear, but the gunners who can participate in this battle are all elite, and the aiming of anti-aircraft machine guns is relatively simple. They basically aim directly at the weakest fuel tank in the tank.

This is the biggest weakness of US tanks. The fuel tank is actually exposed outside like a motor vehicle. Although there is a layer of iron as a cover, the iron plate is at most 10 mm thick, just to ensure that the position of the fuel tank is not exposed, rather than protection. After all, it is impossible to provide comprehensive protection for such a huge fuel tank.

But how could this be able to block armor-piercing bombs? Even if it is 3 kilometers away, China has carefully decomposed the minimum 50 tanks, and the location of the fuel tank is basically fixed, so this area has been received by a separate receipt and has become the target of their attack, and all anti-aircraft machine guns are aimed there.

Finally, when the last tank entered the range, the command sounded at the positions of all anti-aircraft guns, and the words "light" were fired. This sentence was transmitted to each gunner through the walkie-talkie. The gunner, who had been waiting for a long time, held the anti-aircraft machine gun in his hand and aimed at the opponent. As long as the trigger was pulled, he could kill the opponent's tank. (To be continued.)8
Chapter completed!