The door of the courtyard house has been welded dead

The gun body, freed from the steel cable, stood firmly at the rear of the axle.

Yang Weimin climbed down the iron stairs of the overhead crane and looked at the truck cannons assembled together in the workshop with a fascinated look in his eyes.

Is this a military factory? It’s really different from the work I did before~!

He was not the only one who felt this way.

This group of old guys in the factory are doing this kind of work for the first time.

In the movies, they have seen the car-mounted Katyusha, and when the shells were fired, they were like a meteor shower composed of shooting stars, piercing the dark sky.

Now, they have mounted the cannon on the car, which looks a little strange, but not unacceptable.

"ВыходиланаберегКатюша, Навысокийберег, накрутой!"

Li Feng was not surprised at all that Mr. Shen could speak Russian. It should be said that there were few engineers of this era who could not speak Russian.

Listening to him humming the Russian song, although Li Feng could not understand the lyrics, he still knew what he was singing through the rhythm.

"Hey, Mr. Shen, this is not the Katyusha of the Russian bear, this is our own Katyusha~!"

"In China, it's not appropriate to call her Katyusha. It's better to call her Cuihua or Cuilan, which is more down-to-earth~!"

This name is indeed very down-to-earth, but it is a bit too rustic. When Mr. Shen heard that Li Feng was going to name it this way, his eyes twitched and he couldn't help but retort.

"After it's assembled, according to the military's naming method, it should be called Type 9~!"

"Let's see if we can get the troops to equip it successfully~!"

Facts have proved that no weapons research and development work is smooth sailing, and all kinds of strange problems may arise in the process.

I watched the workers press the handle to release the spade little by little. The modified spade rushed to the bottom of the rear of the vehicle and tilted nearly forty-five degrees. Finally, it was tightly stuck to the ground.

Directly in front, a hydraulic support frame was extended at the same time. The hydraulic rod, as thick as the calf, supported the entire vehicle steadily. It looked like a crane at work. Of course, the workers might have gotten inspiration from the crane.

This work requires four people to work simultaneously until the hydraulic rod can no longer be pressed.

After the car body is propped up, it needs to remain level both laterally and horizontally.

"Level~level it!"

After the bubble in the spirit level swayed left and right, it slowly moved towards the front of the car. Master Jia couldn't help but frowned. An unexpected situation still occurred.

"The gun is still too heavy, and the center of gravity is a little too far back. Can the hydraulic rod at the rear of the vehicle go down a little further?"

"It's in place. I can't press it any further. If I press it any further, the hydraulic pump may not be able to bear it!"

I moved the level forward again and found that it was indeed the case. The front was higher and the back was lower. The hydraulic rod in the front had been raised into place.

The front tire was about two centimeters off the ground, and the rear tire was only about one and a half centimeters off the ground.

Li Feng didn't understand the principle of the spirit level, but he could see that when Master Jia squatted down to check the height of the tire, he could see that the car body was still slightly tilted backwards.

This is because the gun barrel is placed on the front of the car, so the weight is slightly shared. If the gun barrel is lifted and the weight continues to be applied to the rear of the car, the tilted posture may become more serious.

"The rear hoe is in place~!"

The technician in charge of the hydraulic support rod project had sweat on his forehead.

At this point, the inconsistency between the front and rear levels was already a problem for him. When he officially lifted the gun barrel and fired a shot, the entire front of the car might lift up.

Mr. Shen, who was originally planning to take us on a tour, came over and walked to the rear of the car. Looking at the base where the gun barrel connected to the car body, he couldn't help but shook his head.

The weight of the front of the vehicle only consists of the cab and the engine and gearbox, but the rear of the vehicle, in addition to the gun barrel, probably considering the recoil, the base is very thick. However, because it is too thick, the center of gravity shifts.

"The base where the gun is connected is too heavy, and the rear axle is not light either. Retract the two hydraulic pipes in front a little bit, and add some counterweight~!"

At this time, Mr. Shen also had to join the team to explore the root cause of the problem and gave some of his opinions.

"It's easy to increase the counterweight, but the truck gun also has to carry shells. Each shell has 80 rounds, and each round weighs about 20 kilograms. Can this weight be suppressed?"

Seeing a group of people trying to find a way to increase the counterweight in the front, Li Feng made a suggestion. It seemed that many truck guns in the previous life were like this.

The gun body is at the back, and the weight of the shell is at the front, so the center of gravity can reach an average point~! "Almost, overhead crane, first hang a ton of counterweight and try it~!"

There is not much in the steel rolling mill, but there are some counterweights. The overhead crane hoisted a few steel ingots, and the raised front of the car was gradually pressed up.

Fortunately, the imported Hongyan off-road truck has a standard load capacity of ten tons, which has a large redundancy. If it were really an old Jiefang, the weight of the gun body alone would be completely overweight.

Being overweight does not mean the vehicle cannot pull the load. It can still drive normally on regular roads, but forget about off-roading. If there is a small pothole and the wheels fall into it, there is not enough power and the vehicle cannot climb out.

This is also the reason why the introduced Hongyan has to be implemented in Sichuan.

"Okay, the horizontal problem has been solved temporarily. You can try to lift the barrel~!"

The temporary solution of a problem means entering the next test. Fortunately, everyone has figured out the basic principles of artillery these days.

The rotating wheel of the gun height lowering machine was spinning wildly in the worker's hand, and the stainless steel hydraulic pipe was gradually pushed out. The gun barrel, which was originally drooping on the front of the vehicle, was lifted up little by little, visibly to the naked eye, until it reached the maximum elevation angle.

"Okay, no problem. I just might need someone taller to help me reload~!"

Even if the gun body is raised to the maximum angle, the chamber for the shells is still located at a high position from the ground. In addition, a shell weighs more than 20 kilograms, so it is really difficult for people of shorter stature to do this job.

"In this way, the shells are located behind the cab, and it is a bit inconvenient to carry them back and forth to the rear gun chamber. It is very demanding on the soldiers' physical strength. Can the gun body be equipped with a movable and pushable feeding device~!"

Li Feng, who was standing behind the cab, signaled the soldiers to move the shells.

But even though he was 1.78 meters tall in this life, if he wanted to put the shell into the barrel, he had to stand on tiptoe and lift his body almost to his neck, which was very difficult.

Rabbits are not eagles either. There are so many tall and strong black uncles serving as human loaders. In this era, malnutrition is common. Even Li Feng, who is only 1.78 meters tall, looks tall in the crowd.

In order to come up with a solution and consider it from a practical perspective, Li Feng once again gave his opinion.

"On the side of the gun, we only need a rod that can be pushed back and forth and adjusted up and down, and a feed slot. The transporters only need to move the shells from the ammunition box in front of the vehicle into the slot, and then push the rod to push the feed slot to the back of the gun. Two people can work together with a long stick to push the shells into the gun barrel easily~!"

If there is no screening, and the tall and dark black uncle is not there, then use a mechanical structure to replace him. The worst thing about doing research is that laymen guide laymen, but Li Feng is not a layman in this regard.

In his impression, modern truck guns are all semi-automated, but the conditions are not unavailable now. If the problem can be solved purely by mechanical structure, that would be the best, as mechanical structures are the most stable.

"Well, this method is not bad. This pole can be made like an elbow joint, so it can move freely. The problem is solved~!"

I have to say that Mr. Shen knows how to cooperate. The key is that Li Feng's idea is very much in line with science and engineering thinking. If a problem is difficult for humans to solve, then leave it to machines. When he said this, he might have already started drawing in his mind.

"I think I understand what Secretary Li means. Engineer Chu, you have to design it later. You are an expert in this area, and it won't be difficult to make a movable rod~!"

Master Jia took a look at the human arm and found that what Mr. Shen described was very apt. He immediately understood the mechanical principles involved. Of course, he couldn't design this thing and could only leave it to a professional!

Hearing that his suggestion was adopted, Li Feng smiled and succeeded again.

As for Master Jia thinking that the difficulty is not high enough and wanting to increase the difficulty of the truck gun design, Li Feng will have to give these people a good lesson.

It's very simple. This gun is now entirely a mechanical structure.

"It's not that difficult. Then I'll give you a difficult one. You can also say it's a future prospect or a long-term plan~!"

"First of all, our hydraulic rods are all adjusted manually. Human strength is limited after all. With electric, or electric propulsion, we only need to flip a switch on the vehicle, and the two hydraulic rods and two spades will extend automatically. How convenient!"

"In the future, the gun's elevation and pitch angles, as well as its left and right rotation, can also be driven by electric motors, achieving a basically automated adjustment~!"

Seeing that Mr. Shen seemed to want to say something, Li Feng quickly waved his hand. He knew what Chief Engineer Shen wanted to say.

"I know there are difficulties. One is the battery capacity, voltage, and load capacity, and the other is the output power of the motor. But isn't the era developing? Technology is also constantly improving~!"

"This is the first truck gun that was made by our factory, but it's not over yet. The conditions are not good enough now, and we have no choice~!"

"But we still need to think more about how to continue on this path. I am just providing a future development idea. The characteristic of mechanical is stability, but electric and pneumatic are also a development direction. They can quickly put this truck gun into combat status and reduce the initial preparation time~!"

After Li Feng finished speaking.

Even Mr. Shen couldn't help but applaud him. He suddenly found that Li Feng's thinking was still very useful and it formed a mysterious collision with his ideas.

Batteries and motors may not work now, but that doesn’t mean they won’t work in the future. If electric power doesn’t work, there are pneumatic power. There are many other ways. (End of this chapter)