After Sun Chengzong thanked him, he presented the artillery materials for the exercise and sat down respectfully.

There are six cannons on the school ground, with three models in total. The two models are field cannons that are to be equipped with a large amount of equipment for the army, named Wansheng Ten-Kim Cannon and Five-Kim Cannon respectively.

It is easier to remember according to the weight of the shells. Moreover, it is made according to the Napoleon artillery drawings drawn by Zhu Youxiao, which corresponds to about twelve-pound and six-pound cannons.

With hired cannon casting technicians and technical foundations for imitating red cannons, it is not a problem to manufacture these two types of field artillery.

The tubes of these two types of artillery are not long and look much smaller than the Red Cannon. In addition, the wheels more than one meter high are obviously far more maneuverable than the Red Cannon.

In fact, Zhu Youxiao was still not very satisfied with the weight of the cannon.

As for a field cannon, a horse is pulled up and running fast, which is called flexible and maneuverable! But the real level of technology also forces him to settle for the second best and reduce his expectations.

Both field guns adopted the casting technology of iron-core copper bodies, with the total gun weights of 612 kg and 245 kg respectively, which was 30% lighter than casting with bronze.

Weight loss was successful, and the cost was much cheaper than that of bronze, but it also sacrificed some range and power.

According to the sample cannon test made in bronze by Xu Guangqi, Sun Yuanhua and others, the range can reach about 1,600 meters and 1,100 meters respectively under double charge (bronze has good ductility and is not easy to explode).

The cannons made of iron cores and copper bodies only dare to use standard charges, and the range is reduced to more than 800 meters and about 500 meters.

Material cost, difficulty in casting, weight and maneuverability, range and power, etc. are necessary to consider casting artillery and equip the troops on a large scale, and finding a balance is also necessary.

After comprehensive consideration, Zhu Youxiao still settled for the second best, abandoned the bronze material, and ordered the Weapons and Powder Bureau to manufacture a large number of two types of field artillery.

Taking advantage of the preparation below, Zhu Youxiao read the various parameters of the related artillery again, and felt that it was enough to be satisfied in this era, and it could even be said to be the world leader.

Taking the Ten-Kim Cannon as an example, it is close to the Red Cannon in terms of range and power; it is stronger than the Red Cannon in terms of mobility.

The five-jin cannon is more mobile and flexible, although compared with the ten-jin cannon, the advantages brought by weight reduction are not as big as imagined.

The quality and performance of steel still need to be improved. Zhu Youxiao heard the whistle, took back his gaze from the information, and raised his telescope.

The exercise field is built along the mountain, with snow on the bare hillsides, with some flags and wooden targets as targets inserted.

On the simple-set positions, the artillery has been set up. Under the leadership of the instructor, more than a dozen martial arts students filled medicine and loaded ammunitions, and then took another distance measurement and adjustment. They hid behind the earth wall next to them, leaving only one ignition.

Boom! The sound of cannons sounded, white smoke rose, and the telescope in Zhu Youxiao's hand moved, trying to follow the trajectory of the shells. But the shells with a speed of three or four hundred meters failed his intentions.

The shells hit the snow on the hillside, splashing a ball of snow dust, and Zhu Youxiao discovered the bounce point.

The whistle sounded again, and a moment later, another cannon also roared, hitting the target, and several wooden targets were smashed and shattered.

Zhu Youxiao nodded, and the power of the two ten-pound cannons was still satisfactory.

Moreover, the elevation angle of the cannon is very small, almost five or ten degrees, in order to make the shells bounce as much as possible and increase lethality.

If this gun goes down, the enemy army line of about 500 meters should be able to penetrate six or seven people (targets), which is what the West calls the company column.

Zhu Youxiao had some understanding of this through the artillery test data submitted previously. He imagined the scene of flesh and blood alleys appearing in Jiannu's array, and smiled with his lips.

Next is the bombardment of the five-jin cannon, which is significantly less powerful than the ten-jin cannon. According to the reported data, three people can barely be penetrated within 300 meters.

After lowering his eyes and thinking about it, Zhu Youxiao thought that the car that bombarded Jiannu was quite good. Of course, the same is true for hitting people, with a shorter range, but the accuracy was improved.

Using cannon snipers to kill a few more big bosses, Zhu Youxiao made a ruthless move and turned his telescope to the "water tank" cannon.

The Ming Dynasty was in a state of great force - Well, Zhu Youxiao took this name, not domineering, and even confused, but he liked it.

Parabolic ballistic artillery should be accurately called mortars, and there were also those at that time. However, it was the first time that such as the Ming Dynasty was launched.

Zhu Youxiao gave it to you for a short time, so Sun Yuanhua and others built it. It can be seen that the production and manufacturing of this kind of artillery is very easy and the cost is very low.

However, it is easy to build with heavy force, but it is not easy to manufacture flowering shells, and the cost is much higher than that of solid shells.

Therefore, Zhu Youxiao is still hesitating and not making the final decision on mass production. This is different from the thunder and grenade trucks, which are simple and cheap.

In the field of view of the telescope, Sun Yuanhua and others personally operated the latest large-caliber cannon.

Well, this is a gunpowder pack for loading and launching, and then use a push rod to compact the pack slightly.

Zhu Youxiao looked at the actions of Sun Yuanhua and others and was able to guess it was almost impossible.

Then checked the installation of wooden delay fuses, and then - Zhu Youxiao laughed again. There was an iron ring on the shell. Sun Yuanhua and others used iron hooks to hook the shell and slowly put it into the barrel to ensure that the original delay lead pointed to the muzzle.

When the launching drug is ignited, high-temperature and high-pressure gunpowder gas will be generated. If the wooden conical signal tube is facing the gunpowder, the gunpowder gas will easily blow into the shell from the small hole in the middle of the signal tube. The result will be a "boom" explosion in the barrel.

Sun Yuanhua and others checked the cannon again before stabbing through the fire door with a long awl, piercing the gunpowder bag, and then inserted a long lead into it...

The lead was ignited, and even the gunner quickly ran into the earth wall next to him, and everyone was watching this cannon that had never been seen before.

With a loud "boom", as the flames and white smoke rose, the shells shot out of the cannon chamber. The wooden signal tube filled with slow-burning gunpowder sprayed with gunpowder gas sprayed vaguely Mars, swept across the sky and flew into the distance.

The Ming Dynasty's heavy fire was astonishingly fast, with shells reaching more than 20 kilograms, equivalent to 24 pounds of Western mortars. Since they are made of bronze, the loaded launching medicine is twice as high as that of a ten kilogram field gun.

Although a lot of gunpowder does not have time to burn fully due to its short tube, it is quite amazing from the momentum of its launch.

It's quite scary! Zhu Youxiao's telescope stopped at the bounce point on the hillside, and he didn't forget to complain.

Time is passing, and Zhu Youxiao has not moved. People who are not sure about the situation can only wait. I wonder if the cannon has been fired, can it be killed by killing the enemy by this moment?

After a long time, Zhu Youxiao estimated that it had been thirty or forty seconds before the landing shell exploded with a loud bang, and a black smoke column mixed with snow dust and mud rose on the hillside.

Amid the surprise that everyone couldn't help but make, Zhu Youxiao put down his telescope and breathed a long sigh.

Because of the large firing angle, the shells fired by the mortar cannon generally fly in the air for a long time.

In order to avoid explosions in the air, and to ensure safety of launch, delayed fuzes are better than short. Therefore, thirty or forty seconds are only medium, and some fall to the ground and explode even lasts for a minute.

Zhu Youxiao could also accept that the extremely simple information tube could reach such a level. This is much safer than the flowering fire shell with long leads that need to be ignited at the muzzle.

As everyone turned their eyes again, the emperor on the stage stood up, and Sun Shangshu seemed to be bowing to persuade him, but the emperor smiled and waved his hand unmoved.

Finally, accompanied by Sun Chengzong and under the protection of the guards, the emperor walked off the stage and walked towards the artillery position.

"Long live the greetings of my husband (the last general)!" Wherever the emperor passed, all the civil servants and military generals paid their respects.

"No gifts, just keep your body flat." Zhu Youxiao raised his hand from time to time and smiled and called out to everyone.

Walking straight to the artillery position, the emperor first circled around the Ming Dynasty twice, then looked at the shells next to him, and occasionally slighted his head, and praised Sun Yuanhua and others.

Then, Zhu Youxiao came to the field artillery not far away, observed it nearby, and reached out to pat the heavy artillery barrel, with a relaxed smile on his face.

Because of the small diameter, the body tube of the field cannon is not long. Unlike long-barrel cannons such as the Red Cannon, they can also fire flowering bullets.

In other words, field guns can fire three types of shells: solid shells, grenades, grenades... shells. This is basically the same as the information about Napoleon artillery in Zhu Youxiao's memory.

Since field guns can also fire flowering bullets, why do you still need to create a heavy force in the Ming Dynasty?

Because the Ming Dynasty is heavy and not only has a long range, but also has a light weight. In addition, the thick wooden base is less than 200 kilograms, so you can pull it and run it when loaded into the car, and you can even move it with people. The mobility is extremely strong.

When fired at a forty-five degrees, the Ming Dynasty could hit about one thousand meters; the ten-pound cannon was seven or eight hundred meters, the five-pound cannon was more than five hundred meters, the old cannon and the Franc plane were more than three hundred meters, and the more than one hundred meters were thunders thrown by the grenadiers.

Within one hundred meters, the distance between light and heavy muskets is showing their power; if it is closer, you will use a bayonet to fuck him!

Zhu Youxiao thought about the killing distance of the enemy, from the bayonet that was so close to the distance bombing of a thousand meters, he couldn't help but feel happy.

On a whim, the emperor actually took the initiative to carry a ten-pound spherical bullet, walked to the cannon, and stuffed it into the muzzle.

"Long live, be careful." Teacher Sun hurried forward. The old man in his sixties was still moving very quickly.

Zhu Youxiao waved his hand, watched the shells smoothly into the barrel, blinked his eyes, looking thoughtful.

After a while, the emperor who seemed to have some understanding smiled and praised the students in the martial arts and artillery department before turning around and returning to the palace.

…………………………………

Attention to firearms, artillery, and artillery is the firm thinking that modern people who traveled to ancient times have been in the development of military history.

A large number of artillery used in wars, even field battles, as well as the regularization and specialization of artillery, have a profound impact on the historical war process, and it is not a matter of being called a milestone.

"Architecture is the god of war"!

Zhu Youxiao carefully wrote down the imperial writing topic, thought for a while, and continued to write about the expansion of artillery department and artillery training for martial arts.

Making artillery is very expensive, and the gunpowder and shells required for training also cost a lot, but this is not the most important thing in Zhu Youxiao's opinion.

Cultivating professional, formal and heroic artillery and formulating scientific and advanced artillery tactics is what Zhu Youxiao believes to be the key and difficult point.

Although Zhu Youxiao had urgent hopes for pacifying Liao, it was obviously too hasty to use artillery for field battles now.

The factors that determine the victory or defeat of a war are important, but more importantly, the people who use the weapons.

Therefore, it is only the beginning to equip the troops with a large amount of artillery. Before artillery and tactics meet the requirements, they should be used for defense rather than field combat.

Field artillery is very different from defense based on cities or positions. The setting of positions, the angle and distance of bombardment, and the cooperation with infantry and cavalry, etc. This is a complex science.

Even if Zhu Youxiao can produce some theoretical knowledge from later generations, it is incomplete and needs to be tested in practice.

"Emperor, Sun Yuanhua is waiting for him to see you." Wang Tiqian entered the hall and waited for a while. When he saw Zhu Youxiao stop writing, he bowed to report.

Zhu Youxiao didn't finish writing, but he put down his pen, sat up straight, and said, "Come in!"

It was not long since Sun Yuanhua entered the palace to bow to him, and after giving him a seat, he waited for the emperor to ask questions.

After the successful development of the flintlock rifle, Zhu Youxiao ordered Sun Yuanhua to adjust the production of the Gunpowder Weapon Bureau.

While developing field artillery, the production and manufacturing of flintlock fissures were fully produced. The production and manufacturing of the Red Armory Cannon was transferred to the Guangdong Weapon Bureau, and relevant technical personnel were sent to provide guidance and assistance.

In other words, the weapons bureau of the capital placed the focus of the production and supply of weapons and ammunition in the north, and abandoned the plan to equip the red cannons in the army, and classified the red cannons into shore defense and naval equipment.

Now, field artillery has been successfully developed, and large-scale production is certain, it depends on the emperor's arrangement.

Zhu Youxiao sorted out his ideas and said slowly: "The production and manufacturing of field artillery can begin, and I will immediately withdraw the funds. What is the output? What is Sun Qing's estimated output?"

Sun Yuanhua hurriedly bowed and said, "Most of the craftsmen who made the Red Cannons are still there, and field artillery is also easier to build than the Red Cannon. I think it would be fine if I produce one ten-pound cannon or five-pound cannon in the early days."

After pausing, Sun Yuanhua continued: "At the same time, two to three more Ming heavy mortars can be built."

The cost of the Ming Dynasty heavy mortars is low and easy to manufacture. They can be completed by just pulling out a small number of craftsmen. However, the manufacturing of field artillery is much more difficult, including supporting equipment such as gun mounts and gun vans.

Zhu Youxiao nodded. Such output could barely satisfy him. After all, the Gunpowder and Weapons Bureau also had to produce ammunition, and the quantity was also very huge.

A month later, the spring was warm and the ice melted. When the Liao Town people in Jinzhou and Dalinghe City were able to be equipped with thirty field artillery, and more than 60 Ming dynasties were forced to be forced.

Combined with the fortifications of the trench chest wall, even if Nurhaci demolished the city wall, the Ming army was sure to stick to it.
Chapter completed!