The other tank is more difficult to maintain, especially when replacing parts for the tank, the monks and the others didn't understand, so Li Yunlong had to go on the battle himself!

From afternoon to evening, Li Yunlong stayed in the Douding Tank to do repair work.

Although he has comprehensive mechanical knowledge, if he uses it, he still needs to slowly explore and practice it.

It was not until late at night that Li Yunlong finally came out of the tank in a dirt.

Ding Wei had already napped against the wall. Li Yunlong looked at him and smiled, directly activated the tank, and drove towards Ding Wei.

Ding Wei heard a rumbling sound in his dream. When he opened his eyes, he immediately saw a muzzle facing him, which scared him so much that he jumped up.

"Oh my god..."

Li Yunlong laughed in the tank: "Lao Ding, you are too timid. Are you afraid of your own tank?"

When Ding Wei saw Li Yunlong's old face that deserved to be beaten, he was immediately angry.

"Li Yunlong, you bastard, will it scare people so scary, okay?"

But he reacted instantly and immediately changed into a smile: "Hey, have you repaired this tank?"

Li Yunlong raised his head proudly: "I have said a long time ago that our old Li knows astronomy and geography, nothing I can't do!"

"Isn't it just a tank built? It's a trivial matter to me, Lao Li!"

Ding Wei climbed up with a smile and touched the tank left and right.

"Old Li, you are so good! We have three tanks all at once, and we are the richest in the Eighth Route Army. Oh, can you put this tank unit under my command?"

Li Yunlong glared at him: "Old Ding, don't dream? Let me tell you, the tank unit must be my direct unit. No one else except me!"

Ding Wei stuck out his tongue at him: "Stingy guy, aren't they just three broken tanks? I don't like them yet. If you encounter a Japanese cannon or plane blown up, your three tanks will be given in vain!"

"Don't the Jinsui Army and Lao Chiang have tanks? They are still useless, have they become iron turtles?"

Ding Wei's words made Li Yunlong suddenly calm down.

Although this attack on Ping'an County was very smooth, it quickly used up all the mortar shells in Li Yunlong's hands at one time.

After entering the county town, many soldiers died in battle because they did not have firepower support.

Although the attack was very glorious, it won.

But Li Yunlong's men also paid the heavy price of more than 300 people killed in battle and injured more than 500 people.

Ding Wei's reminder reminded him of the importance of weapons.

"Damn it, I haven't made new weapons for a long time! I used to be poor, so it was already amazing to be able to build rifles. But now our old Li is rich and can no longer be as timid as before."

"If you want to fight and win, you must build some more powerful weapons. For example, infantry cannons..."

Thinking of this, Li Yunlong jumped out of the car and walked out on his own.

When Ding Wei saw him like this, he thought he was injured by his words. He hurriedly shouted: "Hey, Lao Li, don't be so stingy? Just kidding, hey, why are you like this? You can't make a joke..."

Watching Li Yunlong leave on his own.

Ding Wei was so angry: "Li Yunlong, do you want to be so stingy? You usually say that I am too much, when did I live like this? Really, the older I get, the bigger the temper!"

Li Yunlong walked all the way to the previous headquarters.

"Captain, where are you going for this matter so late?"

Chen Quan and Huang Zhiyong, who were on duty at night, immediately stopped and stepped forward to ask when they saw Li Yunlong.

But Li Yunlong seemed to have not seen him, walked straight past him, and he greeted him like he didn't hear him.

Chen Quan scratched his head helplessly and said to Huang Zhiyong beside him: "What's wrong with the commander? You'll walk so fast, don't worry about something happening again.

Huang Zhiyong shook his head: "I don't know either, but we just captured the county town, so nothing should happen."

Chen Quan nodded thoughtfully, then turned around and continued patrolling.

After returning to the house, Li Yunlong searched around and finally found paper and pen from a drawer.

The system appeared in my mind again. After Li Yunlong retrieved the relevant knowledge, he immediately picked up the pen and quickly drew the drawings on the paper.

In less than three hours, two drawings were already drawn.

Li Yunlong looked at the stack of drawings excitedly, his face full of smiles.

What he lacks now is heavy firepower. He used to be unable to produce, but now he has more and more things.

Making small cannons is no longer a dream!

He looked at the drawings and found both weapons from the mechanical manufacturing collection, and they are also weapons he could barely make at present.

le.IG18 infantry cannon, with a diameter of 75 mm, a length of 0.88 meters, and 3793 meters. It can be equipped with general shells, air-core charge armor-piercing shells, and high-explosive grenades.

In terms of performance, in addition to having artillery shields, this cannon is more elastic among the infantry cannons with low appearance than the Type 92 commonly used by the Japanese.

It can perform direct shooting or high-angle indirect shooting, and it also has the characteristics of field guns, howitzers and mortars.

But like Type 92, the initial speed of le.IG18 is too low and the ballistics are too curved, so it cannot accurately hit the target of moving at high speed!

The most important thing is that the le.IG18 infantry cannon is too bulky, and offensive and defensive battles may come in handy.

But once you encounter mountain combat, the role you can play will be very limited.

It was precisely because of this that Li Yunlong specially drew another cannon.

The PP89 type 100mm mortar has a caliber of 100mm, a total gun weighs 73 kilograms, can fire 15-20 rounds per minute, and the maximum range can reach 6400 meters.

In addition to its long range and great power, this kind of mortar has a very good concealment.

In mountain combat, long-distance bombing or fixed-point fire cover can be carried out, which can play the role of fighting cattle across the mountain!

As for the production issue, Li Yunlong was not worried at all.

After the Japanese tank maintenance factory is rectified at that time, with the help of Soviet technicians, there is no problem in creating a production line.

As for shells, they can be used to seize them from the Japanese first, or directly produced them.

The material problem is also easy to solve. With Li Yunlong's current position in the boss's mind, he can be mobilized from the arsenal.

Although the boss may be fetched by the boss as before, what does it matter?

As long as weapons can be made and the Japanese can be driven away, these drawings will be contributed.

Anyway, once these two cannons come out, they will not be able to hide them!

Thinking of this, Li Yunlong picked up two drawings on the table.

After carefully reading it, he nodded with satisfaction: "After the pillar injury is recovered, you can consider expanding the artillery company into an artillery battalion. With these two artillery, maybe you can have a evenly matched artillery battle with the Japanese at that time."
Chapter completed!