In the mountains thirty miles northeast of Ponu City, there is a secret experimental field of Zhang Ping'an, the commander of the Ponu Army. There is a valley within a radius of twenty miles, which has been flattened like a mirror by hundreds of Mongolian slaves. Today, the General Zhang will experiment here with a series of*. For this reason, the five thousand soldiers of the personal guard camp surrounded the place tightly. The Liuqingshan Mountain troops sent a main army to patrol the possible pedestrians in the deep forest. As long as Zhang Ping'an made things, they will not be visited by anyone. Even if this person is Chen Pi, the deputy commander of the Ponu Army, it is impossible to come forward to see the details.

The Pou Nu Army has long been able to produce * for fired muskets. It is of course no problem to make * something that is not technically high. Today, Ye Yuxuan first conducted an experiment on the * explosion. Zhang Ping'an was satisfied with seeing thirty * explosions exploded one after another. Although the explosion sound was not high, it represented that the Pou Nu munitions crossed an era. In order to strengthen the confidentiality of the secret laboratory, Zhang Ping'an divided the laboratory into two. Even his favorite student Ye Yuxuan did not know the production process of nitric acid, nor did he know the purity ratio of nitric acid.

Seeing the five cannons of different caliber sizes placed in the experimental field, Zhang Ping'an began to order to first test the passive* of ten kilograms a hundred feet away. When a soldier in the personal guard camp ignited the lead with thirty feet away, Zhang Ping'an looked at Gu Xin, and Gu Xin immediately turned over the timing hourglass and placed it on the ground. Zhang Ping'an covered his ears with his hands and observed the explosion with his naked eyes. When the explosion of ten kilograms, the huge explosion still shocked Zhang Ping'an. The power of the explosion of ten kilograms is enough to cover the explosion of fifty kilograms.

Afterwards, Zhang Ping'an ordered the test of the safety of *. This * was blunted with diatomaceous earth and exploded a long time after high temperature fire, which means that the safety of * has met the requirements. Then, Zhang Ping'an began to test several types of artillery cast iron *, and he wanted to see the effect of practical application of *. These five artillery uses rifled cannons, and their casting technology can well reflect the intelligence of the craftsmen in Ponucheng. Last autumn, when inspecting the casting artillery workshop, Zhang Ping'an told the craftsmen some principles of thermal expansion and contraction.

The master craftsman Wang Ermu was asked to cast several solid cannon bodies first, then drill the drill bit out of the cannon chamber, and then polish the cannon chamber with a grinding wheel. A solid steel column center of the same size was made according to the diameter of the cannon chamber, and a tungsten drill bit was pulled out of the rifle. The winter in Ponu City was extremely cold, and Zhang Ping'an estimated that the outdoor temperature could reach more than minus forty degrees below the next generation when it was the coldest. Gu Yaxin, the former chief officer of the Thousand General of the Review Group of Ponu Army, was famous for her at a glance. She could judge the defects in the casting parts without any tools. Since she married Liu Chong, she has been idle at home to take care of her husband and children. But Zhang Dashuai asked him to help Wang Ermu, but Gu Yaxin did not refuse. Anyway, there were not many cannons, which was only a hundred cannons could be watched in one day.

When the craftsmen of Pou Nucheng frozen the outside of the house for several days and stuffed the cannons at room temperature inside the house, they were stunned. When the craftsmen saw that it was impossible to stuff the inner chamber of the same size and stuffed it behind the cannons, they all sighed that Mr. Zhang was really a god, and even knew this kind of unpredictable method. In particular, after the test of the cannon, the inner chamber was squeezed by the explosion and tighter. This rifled cannon can increase the rotation of the shells at the moment of firing out, which not only increases the range of the shells, but also increases the accuracy of the shells.

Zhang Ping'an, who retracted his imagination, walked towards the test artillery under Ye Yuxuan's arrangement. Seeing this four-wheeled artillery with the front and the back, Zhang Ping'an couldn't help but sigh at the craftsmen's wonderful ideas again. The two small wheels on the back of the artillery frame equipped with the two long artillery can be disassembled when the artillery frame is fixed. The two rear fixtures like iron shovels are firmly inserted into the ground, which can effectively resist the recoil force generated after the artillery fire. A semicircular roulette under the gun body indicates that the gun body can move left and right without the gun body being moved.

The circular gears on both sides of the gun body can be raised and reduced the shooting angle of the gun body. Two solid cast iron fasteners fix the adjusted shooting angle. Zhang Ping'an walked two laps beside the gun and asked Ye Yuxuan: "How far can this gun shoot? How many times do it need to be cooled? How long does it take to cool down?"

"Reply to Mr., this kind of three-pound cannon can hit five to six miles. After nine consecutive rounds of fire, it must be cooled. If it is fought in the cold winter, it can shoot twelve cannons, and only seven rounds cannons cannons in summer. The cooling time is less than half an hour in winter, and one hour in summer. However, it depends on what kind of shell it is. If the round shell is at most five and a half miles. After the long-column shell is fired, it will hit up to seven miles without rolling!"

"Oh? How do you know that the shells are rolling in the air? Do you have such good eyes?" Zhang Ping'an was very surprised. When he checked guns in later troops, he often saw horizontal and vertical bullet holes on paper targets. Zhang Ping'an never remembered to explain to them that long bullets on the cylinder would flip in the air.

"Mr. He was joking. Even Liu Gu's eyes could not see the shells flying out of the cannon chamber. When we tested the cannon, we found that the range of the column shells was sometimes very short after being fired. Later, we used a wooden frame to lay a large cloth and found that the shells were rolling in the air. For this matter, Vice Premier Long Tao also said that we were ruining the cloth and asked us to use ragged cloth to do an experiment."

"Yuxuan, Long Tao is right. You are the smartest people in my Pokémon Army. Why can't you think about it? Isn't you also a target if you nail white paper to a thin wooden board? But you don't have any worries, don't save any money you should spend. Don't go to the civil yamen to ask for things in the future, otherwise Chen Liang will double the price when he checks out with me. If you lack anything, go to Wang Qinghe. Even if I eat braised vegetables, I have to ensure your expenses."

Of course, Zhang Ping'an knew the role of advanced technology in war, especially when facing the next opponent who was also armed with firearms. Advanced weapons could give the Slave Army the advantage. For this reason, Zhang Ping'an attached great importance to this new type of * and artillery experiment. While speaking, Zhang Ping'an touched the dark body of the new type of artillery, and was obviously full of expectations for this test. Then, Zhang Ping'an and his friends came to a thick bunker southwest of the test range to watch the test firing of the artillery.

This time, the artillery test was the deadly gunners in the artillery team of the Pound Slave Army. They were punished for violating military discipline in the three artillery teams of the Pound Slave Army. Since these veteran gunners were all veterans who had gold medals for avoiding death, they could escape from the sea of ​​suffering after the death battle was completed. In order to get closer to actual combat, this artillery test started with a pound of small cannon as usual. A pound of small cannon was one foot long, and like a three-pound cannon, the rifled cannon warmed up from solid bullets, and the fired* wrapped in nitro silk, and the air-exposed round wooden boards were loaded into place in turn.

With a "boom!", the live ammunition accurately hit the mound of earth three feet a square in the square. The 1.5-meter-high earth pillar raised by the solid shell indicates that the power of the rifled cannon is far higher than that of ordinary smoothbore cannons. Zhang Ping'an was not interested in this solid shell shooting. After seeing the effect, he ordered Ye Yuxuan to change the **. At this time, Ye Yuxuan issued an order to change the ** while explaining to Zhang Dashuai: "Sir, **, there are three types of detonation protection after shooting. One is * detonation, but this detonation method still has problems for the time being. The detonation method is not too stable, and there is a situation where the shell does not explode. There is also a *fuze in front of the shell. This fuze explosion is much better than *. If it encounters sand and swamp terrain, only 50% of the shells can explode. The most stable one is to use *detonation*."

Ye Yuxuan's explanation made Zhang Ping'an a little helpless. Any good military and technical achievement must have a continuous improvement process. But the Pou Nu Army couldn't wait, so Zhang Ping'an said to Ye Yuxuan: "Well, let's take a look at this ** first, you can improve it slowly. Since the *detonation stability is high, can you install two fuzes on * and *? You must set up as soon as possible. The soldiers on the front line of the Pou Nu Army cannot wait with blood!"

"Okay, the first shot is *made as a spherical fuse*, the second shot is *fuze cylinder*, the third shot is *fuze cylinder*, and the fourth shot is *fuze cylinder*. The explosion rate of * and *fuze circular* is only 20%, so this shell is abandoned."

Ye Yuxuan ordered the firing of the gun while explaining. This time he used a three-pound cannon, and the target was still a half-in-and-out mound. This time the gunner aimed at a little deviation. After the shell was fired, it hit about half a foot to the left of the mound. * did not explode immediately, but instead formed a jump. After bounced twice, it exploded in the air at half a height of two feet. This explosion was several times more powerful than the largest nine-pound bomb in the Po Slave Army. The iron shrapnel brought out a large rain of bullets within a radius of ten feet of the explosion point. The small pillar of soil stirred up by the shrapnel, forming a ball of smoke and dust.

Zhang Ping'an was very satisfied with this result. He slapped: "This kind of shell is good! Awesome! Awesome! Guxin, arrange for the workshop to produce a batch of these * first to transport them to Ping'an City."

Gu Xin also woke up from the shock of the huge power generated by the shelling. While he used the record book to record the highest instructions of General Zhang. The subsequent * shelling confirmed what Ye Yuxuan said, and the *column shells also had the defect of delayed explosion. The *column* might hit the soft ground without explosion, while the * used * as a fuse exploded halfway on the road when they flew out fifty feet. Just when Zhang Ping'an, the commander of the Pou Slave Army, was enthusiastically experimenting with the new type, Huang Taiji, the assistant to the Qing Dynasty, was planning in his commander's tent, and waited for the main force of the Pou Slave Army to withdraw his troops and set out to launch a full-scale counterattack. (To be continued)
Chapter completed!