After receiving this project, the people on the side of Mercedes-Benz Heavy Truck Factory were also quite interested, but after some calculations, they found that the problem was very big.

"We originally planned to use the same scheme as the crane, with the outriggers placed on all sides, but we calculated that when the gun fires, no matter how much the girder of the car is strengthened, the recoil will completely bend the girder of the car at the moment of firing." Mia said.

The tires will definitely not be able to withstand the recoil of the artillery fire, so the plan here is to put down four outriggers around the crane to let the tires get off the ground, so that the outriggers can bear the recoil of the launch.

However, after some calculations, it turned out that this did not work either. The recoil force when the gun fires is too large, since it is mounted on the car, it will just hit the girder of the car, and the strong recoil will make the girder of the car be bent.

No matter how strong it is, it can't be strengthened!

Thinking of this, Mia felt a little discouraged and loaded the cannon into the car, this is a whimsical plan!

"The scheme of using hydraulic outriggers is also unacceptable to us." Qin Zhenhua said: "Under this scheme, the deployment and evacuation time is too long, which is not in line with our positioning, even if it is slower than the vehicle with a tracked chassis, it must be completed in one minute, not too slow." ”

If the four legs are unfolded, it will take too long, and it will not be able to meet the needs of actual combat at all, and it will eventually become a chicken rib.

The crawler chassis relies on the track belt to bear the recoil of the car body, and at the same time, the entire body is welded with armor steel, which is integrated and can be used to withstand sufficient recoil.

However, the car is not good, the main component of the car is the girder, even if the Mercedes-Benz heavy truck is most proud of this variable section girder, which is only used for transportation, not to resist the recoil of artillery firing, and local reinforcement is not good.

Now, everyone is contemplating the chassis of this heavy truck.

Truck gun is still a new thing, everyone in the design, abide by the simplest principle, the 122 mm howitzer on the car, the most convenient, of course, is the barrel backwards, the gun body fixture, directly installed on the frame, in this way, the barrel backwards, is the most convenient.

At the same time, it is concealed before firing, and after firing, it must be running backwards, so entering the position backwards and running after the fight is definitely the most convenient plan.

It's just that the arrangement of this scheme allows the recoil of the gun to point to the girder part of the rear of the cab, which is the least strong.

How to fix it?

The engineers of Mercedes-Benz heavy trucks have already thought about strengthening the girders, how to strengthen them is not enough! After all, that part is dangling.

"Our cannons, the main means of fixing is the large frame, and at the same time, in order to prevent backlash, there is also a hoe shovel structure, can we think of this structure, put this structure, on the truck gun?" At this time, Lin Zhu suddenly spoke.

In order to reduce the recoil of the cannon, designers from various countries are trying to find a way, and there are two most important methods, one is to gradually increase the resistance to the barrel when retracting the barrel in the backseat of the barrel to make it stop, and then the reentry machine pushes the barrel back to its original position.

The other is the hoe shovel, also known as the plough, as the name suggests, it looks like a farmer's plow, but it is backwards, so that after reaching the firing position, put down the plow and fix it, after the gun fires, the gun body will react backwards, and then, you can use this hoe shovel to poke into the soil, so as to fix the gun and prevent the position change due to recoil when the gun is fired, which affects the shooting elements.

When the truck gun is shooting, a big problem is that the body of the car shakes, which affects the accuracy of the shooting target.

Lin Zhu's statement immediately reminded Qin Zhenhua, and Qin Zhenhua's mind flashed with a flash of inspiration.

"I think we can change the plan." Qin Zhenhua strode over, pointed to the girder behind the cab and said: "We are here, add a diagonal downward hoe shovel, or it can also be the way of outriggers, so that when the cannon fires, the recoil will come over, and it will be transmitted to this hoe shovel, and the car girder will naturally be fine!" ”

The girder is empty underneath, so no matter how the girder is strengthened, it can not withstand the recoil of the artillery fire, if it is like this, add a ejector rod in the back, directly to the ground, it is a hard connection, in this case, the recoil is directly directed to the ground, there is no need to worry about the car girder problems.

"Qin, you're right." Mia was also a sight to behold.

The participation of the Germans is a must, because the chassis belongs to others, and they have to measure all kinds of data through the other party, but as for whether it will cause a leak, Qin Zhenhua did not think about it so much, it is purely mediocre self-disturbance.

In the military industry, there has always been no respect for patent rights, I can build it, I will make it, what do you say patent rights are useless.

Once such a hydraulic hoe shovel is installed in the right position, it can allow the truck gun to be successfully fired, then there will soon be a group of followers, unless it is never announced to the public, that is, it is not used, it is naturally absolutely impossible.

Anyway, the outside world will know, so why not do it if you are here with the Germans and can speed up the progress?

"If the position is carefully designed so that the recoil of the cannon is transmitted in this direction, then I think that other brackets can also be omitted, which can also greatly improve the rapid reaction ability, after arriving at the destination, the gunner needs to aim, determine the shooting elements, in the process, you can put the hoe shovel directly down, so that the conversion time between the truck gun in the marching state and the combat state will not exceed 1 minute. It is fully capable of meeting practical requirements. ”

"yes, I think I can try!" Mia's chest rose and fell, indicating that her heart was also constantly rippling at this time.

As an engineer, when you see a wonderful industrial product, you will be amazed by the ingenuity of the designer, but now? Now, Mia has seen another exquisite and wonderful design scheme, cleverly solving the problem, this Qin Zhenhua is really amazing!

It's just that she didn't know that at this time, Qin Zhenhua's mind was still surging with another bolder idea, if this cannon was turned one hundred and eighty degrees, would the entire recoil of the cannon be able to directly touch the ground?

If this plan can be realized, the 152 mm cannon can also be loaded!

However, this is a matter for the future, the rice has to be eaten in one bite, and now the problem in front of you is solved!