Chapter 1796: The good news flew in the lonely city, never a sound, the sky thunder

I saw the cannon placed on the ground, with its mouth facing the sky, about 1.6 meters high. The cannon body looked thick and short, and the barrel wall was very thick.

Below the cannon is a pure steel gun mount. Shen Mo was surprised to see that there was a thick spring cushioning device below the cannon - this was actually a retracted cannon!

This type of retracted artillery can use the gun itself to resize the impact momentum when the gun generates huge recoil force.

At the same time, the wheels under the gun mount slide backward from the track for a period of time to completely absorb the recoil of the gun.

When Shen Mo saw this design, he knew that this must have been made by the Vulcan team of the Shengong Camp for the boy!

Sure enough, when he turned back and looked back, he saw the fat little white man Tang Tianji at first glance.

...

"Come here!" Shen Mo saw that Tang Tianji, who was full of brains, was tricked, and saw that he shouted angrily.

I saw this young fat man, who heard the teacher call him, had a shameless smile on his face, and a few light leaps came to Shen Mo.

"Teacher..." As soon as he saw Shen Mo's bad expression, the fat man immediately put away his smile and his little face turned paler.

"explain,"

Shen Mo's face was as deep as water and pointed to the strange-shaped cannon next to him.

"This is not...I...I'm..." Tang Tianji didn't know what to say for a moment, and his words were incoherent. His embarrassed look made Yang Miaozhen and others beside him laugh.

When Tang Tianji finally recovered, he saw him breathing a sigh of relief, and then said, "I received the dough melon... It was Li Muyuan, the cannon usage report sent by Yitian Fortress, so he had this idea."

Then, under the explanation of Tang Tianji's aroused and white face, Shen Mo understood the whole story.

It turned out that during the defense battle of the Yitian Fortress, due to the large-scale use of artillery, the densely fired shells significantly shortened the life of the body tube.

While the cast steel cannons were constantly fired with double charges, cracks appeared in the cast steel cannons at that time.

So the artillery soldiers of the Yitian Fortress had no choice but to burn and anneale the cracked places with a rope soaked in kerosene. Then they saw off the section of the about to crack the gun barrel and accidentally transformed twelve short-mortar cannons.

As a result, when used in the fortress in actual combat, the effect was indeed similar to the craftsmen who transformed it.

Of course, the range of the artillery was sharply shortened, and the ballistic was outrageously curved. The artillery soldiers of the Yitian Fortress could only raise the gun to bombard the Jin army that was sieging the city.

So after this artillery use report of the Yitian Fortress was sent to the Shengong Camp, Tang Tianji suddenly became enlightened!

Before this, the artillery development team of the Shengong Camp had already gathered a group of Shen Mo's proud disciples. These artillery madmen thought about every day how to increase the range and power of the cannon.

However, in this process, the more you want to shoot the artillery farther and the more powerful the artillery, the larger the caliber. However, this large-caliber long-body cannon has an unimaginable weight!

Therefore, the large-caliber artillery they designed is difficult to process, but is not convenient for transportation and use. It weighs several tons at a weight, and in this era, it is impossible to move it by dragging muds and horses on the mud!

So this report immediately made Tang Tianji think: If the body of the large-caliber artillery is sharply shortened, making it only one-quarter or even one-fifth of the original one. It can greatly reduce the weight, and immediately increase the movement performance of the large-caliber heavy artillery several times!

So in this case, this large-caliber artillery was designed in the hands of members of the specially developed Vulcan team.

During Shen Mo's period in Shandong, of course, it was impossible for him to take care of Tongzhou's affairs in all aspects. It was even more impossible for him to send documents to Shandong for him to sign.

What's more, the children of Shengong Camp now have high professional qualities. At least it is impossible for casualties to occur in the experiment.

So this bizarre artillery experiment was carried out like this, and such a weird artillery was produced.

When Shen Mo saw this thing, he knew that this was a large-caliber mortar that appeared in history!

Since this kind of artillery has appeared in history and has been popular for a long time, it means that there are indeed reasons for its existence.

First of all, since the body tube of the mortar is not long, the caliber of the cannon can be made very large. In addition, this kind of cannon also has a short body tube, so the ballistic trajectory of the cannon it fires very curved and must be fired into the sky to hit the enemy.

But for this reason, the mortar has obtained a unique skill...it can hit obstacles or enemies behind trenches!

Therefore, in history, the actual mortar was simply the original model of the mortar.

...

But when Shen Mo saw the sample cannons made by these children from the Shengong Camp, he shook his head a lot... because this thing is still too heavy after all!

In Shen Mo's idea of ​​building a military army, the movement speed of the army has always been calculated by him as the main combat power.

Therefore, due to the road environment of the Southern Song Dynasty, this large-caliber artillery was still difficult to follow the army to maneuver quickly.

If you want to know how important the road is to an army or even a country, you can use a specific example to prove it here.

In the Roman era, the width between the two wheels of the carriage at that time actually depends on the width of the body of the horses at that time. Therefore, the width of the two horses walking side by side between the shafts becomes the distance between the two wheels of the carriage.

Once such a carriage is on the road, the deep ruts formed by its wheels will make other wheels wider than the ruts or wheels narrower than the ruts completely unable to walk on such two deep grooves.

In this way, the wheel spacing in the Roman era has been used in later Europe, and has been used in the steam train era.

Later, because of the habit of such a carriage wheel spacing, when building railways in later Europe, such widths were conventionally adopted.

Later, when NASA made a large-thrust rocket, in order to facilitate the transportation of the rocket engine on the railway, it was designed to not exceed the limit of the train car.

That's it, if you put it strictly, the diameter of today's most advanced moon rocket engine actually depends on the width of the horse's butt in the Roman era!
Chapter completed!