"100mm tank gun? With such a large caliber, can it fit the body of a 30-ton medium tank? Karl wondered.

Xiao Weiguo said: "The use of a single inner barrel, a horizontal prismatic semi-automatic gun bolt and the use of a one-piece 100 mm shell in the tail can control the weight of the 100 mm tank gun below 1500 kg, the weight of the 100 mm armor-piercing projectile does not exceed 20 kg, and the grenade does not exceed 30 kg, so that it will not exceed 2000 kg in the case of mixed loading, plus the weight of the turret structure, the weight of the entire turret should be less than 10 tons, which can be fully installed on the hull of a 30-ton medium tank, You must know that the tender document allows the weight of the car to be 35 tons. ”

Xiao Weiguo is still envisioning that after the technology matures in the future, a new type of smoothbore gun can also be used, but now the technical conditions are definitely not up to it, and the power of the 100mm rifled gun is enough to deal with all tanks during World War II. The early tank artillery was rifled guns that dominated the world, and the main battle tanks of various countries were all equipped with rifled guns.

Later, Chinese tanks of the 59, 69, and 80 series used rifled guns. In the 60s, the USSR first adopted smoothbore guns on its T-62 tanks, after which Western countries followed suit and were not to be left behind! The reason why smoothbore guns are favored by countries is mainly because they have many advantages over rifled guns. First of all, the smoothbore gun has no rifling, its production process is simple, the price is low, and at the same time, because there is no rifling wear, its barrel life is longer than that of rifled guns. Secondly, the smoothbore gun can withstand higher rifle pressure due to the fact that the rifled gun is prone to cracks due to the stress concentration at the rifling root, which is of great help to improve the muzzle velocity and firing range of the projectile, and the rifled gun must pay higher chamber pressure, longer barrel length, and greater rifling wear if the rifled gun wants to obtain the muzzle velocity of the rifling gun, which is limited to tank guns.

However, although the smoothbore gun has many advantages, the disadvantages are also obvious. That is, only anti-tank shells can be fired, while smoothbore guns can use a variety of ammunition, so that tanks equipped with smoothbore guns can perform more combat missions. Unless it is a heavy main battle tank in the future, the smoothbore gun can be used.

Karl laughed and said, "Philip, do you want this medium tank to be able to perform more offensive combat missions, such as using grenades to shell enemy positions?" Become an effective addition to artillery? ”

Xiao Weiguo nodded and said, "That's true." Judging from the current mainstream tanks in the world, it seems that a 50 mm caliber tank gun is sufficient, but we also need to take a long-term view and make this medium tank an all-rounder. In addition to being able to fight against tanks, it should also have a variety of capabilities, and the larger hull and turret design can not only make this tank have a good potential for modification, but also allow the tank crew to have a more comfortable operating space, even if it is a large man of 1.9 meters, he should be able to become a tankman. It's the tank we need. ”

Messerschmidt said: "When it comes to the operating space of the tank, it is the same as the fighter plane, and a comfortable operating environment can allow the tank crew to exert stronger combat effectiveness. I think the design sketches of both tanks are based on the rear of the power and transmission parts, and the engine is transverse, which really allows the tank to have more usable space. It's just that the engine and transmission compartment have to be arranged very compactly, and I don't know if there is a way to solve the design and production problems of the engine and transmission system. ”

Xiao Weiguo smiled: "We haven't done it, but companies like Gallem-Benz and Porsche have experience!" We don't have to do it all ourselves. Just like the Wind Thunder engine, we can also subcontract some of it to other companies. And the whole is up to us. If we produce all the parts on the tank, we don't have the ability to do it, and we don't have the need for it. I am going to use a high-power diesel engine, which not only has more power and torque, but most importantly, the diesel is safe and will not cause an explosion after the tank power compartment is broken. After the adoption of a V-type diesel engine. The width of the engine can be narrower, which can effectively use the space under the engine, so that the gearbox part can be put into the engine recess space, and the upper degree of the car body can be shortened, so that the space length of the combat part can be expanded. This allowed the tank to mount large-caliber guns to increase firepower. Although it will cause some difficulties in dismantling and repairing, and the structure will become a little more complicated, these problems are all technical problems and are secondary to the overall performance improvement of the tank. ”

Messerschmidt said: "Not bad! The driver is located at the front of the hull, to the left, which is convenient for driving and operating the machine gun. In addition, the space of the battle part feels so big! ”

Xiao Weiguo nodded and said: "In battle, the tank crew is highly nervous physically and mentally, and it is easy to get tired, so the larger space and suitable position are convenient for observation and combat operation, which is a problem that must be seriously considered in tank design." The diameter of the seat of this medium tank is about 2.3 meters, and that of a light tank is about 1.9 meters, because there are 2 or 3 crew members, plus the gun loading structure, the loader is on the right side of the gun, and the commander and gun commander, who have a relatively small range of movement in battle, are on the other side of the gun. ”

"The walking part is also very important. My design is that the inducer wheels are in the front, the driving wheels are in the rear, the load wheels are all six pairs, and there are three towing wheels. This allows for a smaller diameter of the load wheel. The large load-bearing wheels are heavier, the stroke is small, and the carrier wheels cannot be installed, so it is easy to cause the tracks to fall off when driving at high speeds, and the vibration of the tank body is large, not only the tank crew is uncomfortable, but the hit rate is also greatly affected! Therefore, the use of small load wheels is a better method, small wheel torque, heavy load, fast starting, and can effectively reduce the height of the body. Xiao Weiguo finally said.

After such a discussion, Karl and Messerschmitt both had a clear understanding of the overall design of the tank, so the two tank design schemes of Dragon Soul Ordnance were decided, Xiao Weiguo was responsible for the overall design, and a part of the designers of Messerschmitt Company were dispatched to assist in drawing and calculation, and it took them only one week to complete the scheme design work. When the detailed drawings of the two tanks appeared in front of everyone, everyone was shocked by the two new tanks with unique shapes! The shape of the 30-ton medium tank is actually Xiao Weiguo's latest 30-ton light tank borrowed from China in the previous life, although it is a light tank in the 21st century, but it was a medium tank in World War II. The 15-ton light tank looks like a tank directly reduced from the hull of the ZBD04 tracked infantry fighting vehicle. (To be continued.) )