Although the affairs of Italy are important, China still has a long time to plan. So it's not very urgent. But there is one thing that cannot be delayed, and that is the problem of the new generation of tanks in China. As a traverser from the navy, Xu Jie's understanding of the 2 battle tank is also poor, but no matter how bad it is, he also knows one thing, that is, the design principle of T34 is still very good, of course, if it is specific to man-machine efficiency and subsystems, it will be more sad, the problem of man-machine efficiency is that the space for personnel activities is too small, especially the loader is particularly tragic, and the subsystem includes the beginning of the V2 engine (V2 was indeed okay at the time, and the potential was good, but the overhaul interval at the beginning was very low. And the lack of radio stations and the shells were too bad.

But in any case, as a layman with historical experience, Xu Jie still put forward some things worth learning from the research and development of tanks, first of all, the first problem is: the weight of the tank must not be too low, and it seems that it is appropriate to be between 30 tons and 34 tons. Like the 4 good in history, after changing to the G type, it has no potential...... If it weren't for a reasonably long 75mm gun, I'm afraid that the No. 4 would really not exist, and the Sherman of the Americans and the T34-85, which was popular in Russia in the later period, are both 30-ton tanks. As for saying that the tonnage is too high, it is definitely not good, first of all, in terms of the current technical limitations, although this plane has improved a lot compared to the historical technology, it is still far from the kind of technology tree that makes a series of heavy tanks such as the tiger and leopard Pershing. After all, that was the product of the 40s in history..........

And the 30-ton tank is different, France 2 before the war there was close to 30 tons of B1 tank, from a technical point of view, if the design is reasonable, then it is still feasible to get a tank of about 30 tons, relatively stable. And from an economic point of view. Tanks in their early 30s are also suitable for mass production, and historically the real mass-produced tank Black Panther (Germany counts medium tanks. But the weight of more than 40 tons was called medium by the Germans. How embarrassed are you to make IS2 and Pershing love! There is also a huge gap between T34 and Sherman in terms of output, in addition to national strength. The complexity of production itself is also an important reason. (Okay, but even then, the author still thinks that producing a leopard is better than producing a four, eh.) ）

The second is that the firepower must be enough! After all, the tank is an offensive weapon, and if it is for defense, it is better to leave it to tank destroyers and assault guns. So the firepower must be put in the most important position. Historically, tanks of this tonnage have been able to mount long-barreled 75mm guns or larger-caliber guns with shorter barrels, such as the 75mmL60 guns mounted on the German planning tank VK3002DB. Or the 85mm guns used by the T34-85 historically. In terms of armor-piercing ability, guns with smaller calibers but longer barrels have about the same penetration depth as guns with slightly larger caliber but shorter barrels. For example, the leopard's 75mml70 and the tiger's 88mml56. It's basically a weapon of a grade. However, the former is more difficult to manufacture, and the howitzer charge is smaller, and in the face of large inclination armor, artillery with a larger caliber will be more advantageous. Therefore, Xu Jie wanted to equip this tank with a shorter 88mm gun, while leaving a larger gun ring to prepare for .........later improvements.

The third is the layout problem, the engine and gearbox rear is a must, the large inclination armor is also a must, and the frontal protection strives to achieve a 65mm tilt of the upper part of the front of the car 55 degrees. The lower part is 80mm inclined armor. The specific degree will be determined at that time. The standard of frontal protection of the turret is temporarily pressed, and if there is any remaining weight, a gun shield can be considered. The protection of the front is already considered strong, under the weight limit. Side protection can be problematic, up to 60mm, but it should be possible to achieve the 40mm side body protection level of the Panther. However, considering that this tank is not a breakthrough tank, there is no way to reduce the side protection on the premise of ensuring firepower and frontal protection. …。

The fourth is the problem of power, Xu Jie really can't make any suggestions for power, after all, he doesn't know anything about tank diesel engines and gasoline engines, considering the current level of technology, after researching. The last engine with more than 300 horsepower should not be a big problem. As for the rest of the story, let's take our time.

The fifth is the issue of the internal space and number of people in the tank, in general, the tank is 5 people. Driver, gunner, commander, loader and telegraph operator. Would a four-seater car be feasible if the telegraph operator were removed? According to the experience of later generations, it is absolutely possible. But considering the current level of communication equipment, can the crew take care of both? Xu Jie has no idea, this can only be explored by the professionals. Similarly, Xu Jie also didn't have much research on the specific layout of the itinerary and ammunition, so he could only let the designers ......... it themselves.

In addition to tanks, there are various derivatives of the same chassis, such as assault guns, tank destroyers, and self-propelled guns. As the best type of vehicle for defense, tank destroyers ensure proper maneuverability...... Because of the removal of the turret, the firepower and protection will definitely be greatly improved, which can be seen from the difference in firepower between the Cheetah tank destroyer and the Panther tank, L71 and 75MML70 are a notch apart! Therefore, according to Xu Jie's estimate, the tank destroyer modified on the basis of this tank can be equipped with at least 88mml55 and above artillery. After all, didn't the Russians install an L30 D100T anti-tank gun on a Su100 tank destroyer weighing more than 10 tons in the late part of the war. It is estimated that the level of protection can also reach the standard of 80mm on the head and more than 55 degrees.

As for self-propelled guns? In addition to the normal self-propelled howitzer equipped with a long-range artillery on this tank chassis, Xu Jie also wants to make a heavy self-propelled mortar based on this! Because Xu Jie believes that in the future, if the army faces the fortified area, the number of large-caliber heavy artillery (above 8 inches) is too small. And if you rely on the air force, it is difficult to say about the air supremacy on the battlefield, after all, the air force of both the Entente and the Allied countries in this plane is more powerful than in history. Therefore, in order to ensure that the army has sufficient and cheap offensive capabilities. Xu Jie believes that it is necessary to build a heavy mortar to clear the army of all kinds of iron turtle ......... in the way forward.

If you want to talk about the heavy mortar in history, the most famous is probably the 2S4 Tulip heavy mortar made by the former Soviet Union, this weapon can shoot shells weighing up to 130kg and charging up to 31kg nearly 10km away. And because the trajectory is relatively curved, it can attack various surface bunkers with terrain cover, and terrain that can dodge cannons may not be able to block this weapon. And even if it is not attacked, the effect of simply fighting group charges is quite good, and the tracked turf also provides this artillery with a certain degree of mobility, and the survivability will be better.

And if the development of this tank goes relatively smoothly, the Chinese Army is also preparing to develop a heavier heavy tank, which is about 30 tons and is just a mass production in the future armored forces of China. In order to ensure that the Huaxia Army has sufficient penetration in future armored warfare, Huaxia needs a tank that can really make a final decision. And in this plan, the Chinese Army set the weight of the tank at about 45 tons! "I'm afraid this weight is a nightmare for the current logistics and maintenance department." When he saw the relevant documents, Xu Jie said secretly in his heart.

The weight of the Panther tank is this level, but in fact, all kinds of stability problems have not been completely solved from the beginning to the end, at first the engine overheated, and then the engine overheating problem was solved by lowering the engine speed, but then the Germans found that the problem of overheating of the gearbox was not easy to solve. Because this tank was originally added from more than 30 tons all the way to the weight! Many of the subsystems were designed to a standard of more than 30 tons, and in the end, the excessive weight overwhelmed the parts that should not have been in trouble. So in the end, there are still various problems with the stability of the Panther tank. Relatively speaking, the performance of the Tiger is good, the reason is very simple, at the beginning the Tiger tank was designed according to the standards of the heavy tank, and the test time in the test site was sufficient, even if the problem was found, even if it was modified, so the stability of the Tiger was not bad later. …………。

Although Xu Jie knew that the current heavy tank was limited by technology, Xu Jie still supported the army to conduct some research and technical reserves first, because this kind of tank would be used sooner or later. After all, as a breakthrough weapon, the side protection must also be emphasized, in his plane, many people think that the Tiger tank is more balanced than the Leopard because of its stability and better side protection...... Compared to the Tiger tank, which had 80mm side armor, the Leopard's 45mm side armor was too fragile for anti-aircraft guns.

The Leopard has such a problem, as a tank whose performance is not as good as the Leopard, the Huaxia 30-ton tank has more problems, the frontal protection is not enough, and the sides are the same slag. If such a tank is used as a spearhead of attack, then the result will naturally not be very good. So Huaxia needed a heavy tank as the spearhead of the attack. The requirements are simple, frontal protection must be able to withstand the blows of most artillery guns, and side protection can withstand the blows of ordinary medium-caliber guns, and at the same time be equipped with a heavy gun that can destroy almost all tanks! On the issue of the choice of artillery, Xu Jie prefers the cannon, which may lead to insufficient penetration of large inclination armor if it is too small. (Equivalent level of kinetic energy.) With the same technical level of shells, a gun with a larger caliber will perform better at long distances against inclined armor. And if the caliber is too large, it is necessary to use split reloading, which leads to a low rate of fire. Of course, all this is just a theory, and it will take a long time to ......... it will be realized.

Thanks to the book friend zhouyu1976 for the reward ~~~~~, and the book friend soft five cows for the monthly ticket support ~~~~. Subscriptions continue to decline, reaching a new low! Ask for a subscription and ask for support ~~~~~. (To be continued).