Now that the arsenal has begun to produce more long-range bombers, the pilots will be overjoyed to form a team to bomb the little devils, especially the female cadets who are waiting for the long-range bombers.

Of course, there is also an important task, that is, to produce more and sell it to the Air Force, and the Allies will also come to order it soon, and when the time comes, the business will be so good that it will explode, so Duan Yunpeng has reported to the leaders again, to expand the arsenal again, and prepare for the production of hundreds of long-range bombers and fighters per month in the future.

Duan Yunpeng knew that the Eighth Route Army was still lacking real tanks, so he was starting to design and manufacture the first real tank of the Eighth Route Army, which was a medium tank, so if it was manufactured in batches, they would crush the light tanks and medium tanks of the little devils.

Because the medium tank of the little devil is only known as a medium tank, in fact, the combat effectiveness is relatively weak, so it can only bully the Chinese army without tanks, and if it is against the tank clusters of the Soviet Union and the United States, it can only be beaten.

When Li Yunlong heard the news, he went to the arsenal to find Duan Yunpeng.

Li Yunlong said excitedly: "Xiao Duan, are you really going to make a tank?" ”

Duan Yunpeng nodded and said: "Yes, I am now going to set up two design centers in our arsenal, one is the armored combat vehicle design center and the other is the aircraft design center, and our arsenal should also be divided, and the two parts of the aircraft and the tank armored vehicle will be separated and carried out separately, so that the efficiency can be higher." I've already designed our first tank, would you like to take a look? ”

Li Yunlong was even more excited when he heard this, and he was about to jump up, damn, in the future, with tanks and combat planes in the air, it would be completely crushing the little devils, not to mention driving the little devils out of China, even if they hit its homeland, there would be no problem, Li Yunlong had this confidence.

Now the arsenal has a production line for tank destroyers, and it is only necessary to build another tank production line according to this, because the two are actually the same, just a wheeled and a tracked type.

Duan Yunpeng knew that in World War II, the warring sides produced a total of hundreds of thousands of tanks and self-propelled guns, including tank destroyers.

In the middle and late stages of the war, there will be many general battles of armored clusters, sometimes with thousands of tanks participating in a single battle.

Although it is said that on the Chinese battlefield, there were few tanks in the original time and space to duel, but now it is different, because if the Eighth Route Army and the Chinese army have a large number of tanks, then the little devils will definitely mobilize more tanks to come over.

So it will definitely be useful when the time comes, and it must crush the little devil's tank in terms of performance, especially the small devil's medium tank.

Duan Yunpeng opened the design drawings, and Li Yunlong was excited when he saw it: "Xiao Duan, your design is really strong, how did you get this tank design, what is the point?" ”

Seeing that Li Yunlong was so studious, Duan Yunpeng also said patiently: "The design of this tank is actually the same as that of a fighter, and the design indicators must be set first." For tanks, there are three main indicators, one is firepower, one is mobility and the other is protection. First of all, the firepower is very related to the caliber of the main gun, the current tanks of the little devils, the caliber of the main gun is very small, at most 57 mm, in Europe it is different, the current main battle tank, the main gun has reached more than 75 mm caliber, so our medium tank, the main gun is set at 88 mm caliber, this gun is very powerful, no little devil's tank can stop 1"

Eighty-eight mm caliber? Li Yunlong said excitedly: "Mom, this is bigger than the caliber of my Italian cannon1"

Duan Yunpeng said with a smile: "That is, such a tank gun can easily penetrate more than a hundred millimeters of armor, just imagine how the little devil tank can block it." Of course, in addition to the main gun, there must also be a coaxial machine gun and a high-level dual-purpose machine gun, which can also be used for air defense. It may not be necessary in the future, but it will still be available! The other is mobility, our medium tank weighs 25 tons, so it is necessary to use a diesel engine of more than 400 horsepower, so that it can reach a speed of more than 60 kilometers per hour, and the cross-country performance will be good. ”

Such a high-horsepower engine is indeed powerful, and Li Yunlong also knows that the more horsepower, the better, so that the tank can run fast, and the armor protection is guaranteed.

This time, Duan Yunpeng's design is directly against the most famous T34 medium tank in the Soviet Union, and the two are comparable in tonnage, but in terms of firepower, the tank designed by Duan Yunpeng is more powerful, after all, the caliber of the 88mm tank gun is very large in World War II.

At the beginning of World War II, many tank guns were short-barreled, so the armor-piercing ability was seriously insufficient, while Duan Yunpeng designed a long-barreled one, so there were no such problems.

Duan Yunpeng continued: "The protection is very important to the tank, the only remaining tank must be able to defend against devils of the fifty-seven mm tank gun, so the thickness of the frontal armor must reach one hundred and forty mm, and the other parts must be more than thirty mm, so the front of the tank adopts an inclined design, which is equivalent to improving the effective thickness." As for reactive armor, there is no need to use it, and composite armor can be used at any time in the future. ”

Li Yunlong was stunned, this was too complicated.

The little devil's tank mostly uses a gasoline engine, but Duan Yunpeng's design must have chosen a diesel engine, because it is very dangerous to use a gasoline engine, and the Germans paid a great price for it in World War II.

Although the gasoline engine is relatively more horsepower, it has less torque, which is not conducive to low speed and starting acceleration.

Of course gas turbines are better, it's just that now they don't have to be used.

In 1943, the Germans had a plan to install gas turbine engines for Leopard tanks, which could run on a variety of fuels and were more powerful, but with higher fuel consumption.

Li Yunlong looked at Duan Yunpeng's design, and he felt his blood boiling.

This twenty-five-ton medium tank has a road speed of more than 60 and an off-road speed of more than 30, a maximum range of 300 kilometers, an armor-piercing capacity of the main gun of 140 mm, which can carry 70 shells, which is considerable, and the front of the turret has a protection capacity of more than 100 mm.

On the battlefield, it is possible to cross an obstacle of less than one meter directly, and it is also a water cross, and it is easy to pass through a depth of one or five meters.