The Great War on the Danube suddenly began.

On the third day after settling down, Qin Fusheng and Yang Xiugao were still negotiating a treaty of commerce and mutual assistance with Vlad III. Where tariffs and exemptions are involved, it is very difficult to negotiate. And when the Ottomans gathered their boats and were ready to cross the river, Qin Fusheng angrily told Vlad III,

"Don't talk about it, I'll destroy this artillery!!" Qin Fusheng roared in the lobby!

But fortunately, this brute boy had this outcome, and Vlad III, who wanted to look down on the infidels, had to relent, and signed a treaty of 'loss of power and humiliation' with zero tariffs and semi-commercial taxes. Speaking of which, it's hard to reflect the difference between mountains and plains when playing games. The Wallachians have been stubbornly resisting the Ottoman attacks against the mountains in the mountains, which can be said to be very brutal.

Therefore, when dealing with unruly people, we should be tough. Yang Xiugao came out of the school for the first time, and was slightly frustrated by this Wallachian barbarian, the root of the problem is that Yang Xiugao is a reasonable and wise lord of the country, but in fact? Historically, Vlad III ruled the country with brutality. Use terror to intimidate the people, and use blood to deal with the enemy. You talk to him about brains? He talks to you about knives!

As soon as the artillery was changed, Vlad III obediently agreed. After all, he doesn't have the talent to play artillery, and those who can play artillery are all Qin Fusheng's people.

Actually, then again, the principality of Wallachia has a fart business! A group of barbarians who lived in the mountains and under the mountains originally made a living by farming and hunting, and the Hungarians came to beat the Hungarians, and the Turks came to beat the Turks. As soon as the war began, the economy and economy regressed.

For Vlad III, this is actually the equivalent of buying and selling without capital.

Qin Fusheng and Yang Xiugao stood on the north bank of the Danube, and the Zhuerzhu Fortress was actually a wooden fence building, and the Rusai on the opposite side was just an extra brick and stone base.

The Ottomans (there was no such thing as Turkey at that time, the Ottomans considered themselves to be the descendants of the Ottomans, and they all called the Ottomans as their national name) set out in small boats and thousands of sails, aiming directly at Jurju!

At this time, several boats have landed on the beach!

It has to be said that the combat effectiveness of the Wallaki is quite okay. Without wearing armor, they fought back and forth with these elite new Ottoman troops with their blood. You can even drive them down the river.

On a beach, red, white, yellow, green, even half of the brain, a tongue that is still beating, or whoever has cut off the male genitalia are all sprinkled on the beach, showing that God and Allah treat all life equally.

The first wave of the Ottoman offensive failed.

"Don't worry! These Wallakis are greedy and incompetent, and they forget their interests! Keep attacking! Send more men to attack! Scatter the fishing boats! Mehmed II glanced at the military camp across from him and said, "Hmph! And send reinforcements? Did he think he could have the power of artillery? ”

The court officials looked over....... Twenty guns were discharged in turn, pointing at the Danube!

“....... Well, I mean, how could his artillery be as fierce as Constantinople? Mohammed II immediately changed his tune.

Dozens of fishing boats rushed ashore, and a large number of Ganishari regiments jumped out of the fishing boats, their white turbans and yellow armor shining together, which was quite a bit of a divine soldier.

"Do you know what the king likes to shout the most? Cannon blast! "Qin Fusheng has the same temperament as his father Bao Heigong, and he has a fiery temper. This time, he was sent to Jintao Mansion to temper his nature, which is good, and he has tempered a cannon general.

"Cannon blasting!" The artillerymen, the Slavs, and the Valakis also shouted with Qin Fusheng! I don't understand it, but it seems to be very imposing.

Boom Boom Boom !!

One by one, the artillery was bounced up by the recoil, and the two-pound cannon flew with smoke all the way towards the Ottomans who had just come ashore and had not had time to disperse!

The tumbling iron bullet knocked over a dozen people with one face before it was shot into the water, leaving a road of blood and fire! The severed limbs and remnants of a dozen people flew in all directions! The landed Garni Shari regiment immediately fell into chaos!

Vlad III's army immediately swarmed up and put to death these bastards who had taken refuge in the infidels!

........

Looking at the tragic situation on the other side of the river, Mehmed II said with a gloomy face: "Withdraw the troops!" ”

Mehmed II had already decided that he had suffered from this artillery! It's a pity that Urban has been killed by his own cannon, but he still has a chance to find more cannon casting talents. Let them come to their own court!

Cast cannons!

Forge a lighter, more agile iron cannon!

.......

"Jump!"

The blacksmiths lay on the ground, helplessly listening to the muffled sound. Cannon, blown up.

The research progress of the four-pounder cannon at the Great Iron Prison Headquarters obviously couldn't keep up with Qin Cang's thoughts.

It was not until the eighteenth century that craftsmen realized that the length of a cannon was related to its firing range. The slender barrel allows bullets to be fired at a longer distance.

But Qin Cang, a liberal arts student, was later engaged in iron-making work, so he couldn't get in touch with cannon casting. His iron is a high-quality iron plate that he buys directly from the steel mill, and he can be turned into a finished product by tempering, but this side is completely different.

First of all, there is the issue of iron. The blast furnace is not good, it is reconstructed, the water conservancy blower is on the field, the regenerative furnace is supplemented, and the iron quality is close to the gray wrought iron! But there is always a problem when pouring molten iron. Some people think that the watering machine needs to be improved, so it is being revised; Some people think that the mud fan of the cannon is still making trouble, so they are also developing the iron cannon stamen.

There is also a question, how to balance the thickness of the front and rear of the cannon? It is completely impossible to determine this proportion, if the blacksmith himself does not cast it a few more times. Therefore, this time the cannon sample experiment failed again.

"Eunuch! I heard that the school in that city taught arithmetic. What's the curve or something, let's find someone to help us figure it out, right? Some blacksmiths said with a big brain.

"This ...... It's okay, Sima should be a live horse doctor. ”

Chu Jing temporarily agreed with his idea. But for his part, he chose to improve the facilities for pouring molten iron. The original pouring was to pull the molten iron and pour it directly in, and the manual operation relied on the operation of the old blacksmith.

This time, the blast furnace was restructured, the regenerative furnace was below, the water conservancy blower was on the side, the blast furnace iron-making point was higher, and the molten iron was directly controlled from top to bottom.

This is Chu Jing's plan.

Soon, the arithmetic man came. After calculating the cannon sample, he said, "Your cannon body is not reasonable!" ”

"Unreasonable?" Chu Jing and a group of blacksmiths fell into depression one after another. The relationship has been fighting for so long, and you haven't even got the appearance right?

If you want to see more and more exciting content, please use WeChat to search for the official account txtjiaa