PAI hit PAO shell, is the most technical content of the whole mortar, but also related to the mortar this task can be completed the key, a total of 12 engineers and 21 fitters, accepted this research, Yang Yuanzhao at the beginning of the drawing, in just a week, was overturned, the ordinary firing pin mode, is considered to be unsolvable, the engineer after research, decided to follow the basis of the ordinary mortar, carry out a certain modification, the bottom will be fixed with a fixed device, loaded with a primer, a stimulate, Both shells and primers need to be added. www.

In fact, this is already the prototype of mortars, which were implemented in 1904, during the Russo-Japanese War, in order to deal with Japan's trench tactics, but no one noticed.

This method, from a certain process, has achieved a one-time molding from scratch, for Baotou, a little worse, such a solution, all of a sudden, let the mortar, from theory to practice.

After several stages and several studies, many scientists concluded that in addition to a lot of numbers, gradually, began to think about how to fix the gunpowder bag on the PAI shell, so that the firing speed of the mortar would be improved again on the basis of the previous one.

A small cannon, in a sense, speed is the key, even if it is equipped with a powder pack, the speed of the mortar is much faster than that of ordinary guns, but the power is slightly less.

Yang Yuanzhao has been soaking here almost all day long, if he is asked to say that there is a theoretical problem about mortars, it is really difficult for him, he is about artillery. Originally, he didn't know much about it, but he drew a rough diagram. It's still okay, look at those military pictures in later generations. Even on the animation of QQ pictures, I have seen similar pictures of mortars, as well as the general appearance of the shell, the general structure is still known, compared to ordinary shells, the belly is a little big, the tail is contracted, and even some tail fins are added.

The addition of the rear wing is definitely the finishing touch. In itself, referring to the previous mortar artillery, the flight trajectory of the shell is not controllable at all, the direction of the gunpowder is different, and the position is also greatly changed, which is probably that although Russia uses the mortar to deal with the Japanese army, whether it is Japan or Russia, it will be later. None of them paid attention to the mortar, the key to this epoch-making infantry weapon.

With the tail, the medicine bag is barely fixed in front of the tail, leaving a passage on top of the shell. For the firing pin at the bottom of the mortar, hit the shell, and then ignite the powder pack. The gunpowder burns to push the cannonball, which erupts forward quickly.

The shells fell inside the mortar. Before the rear wing hits the ground, the first thing to hit is the firing pin. The high gunpowder, which will be excited in an instant, erupts backwards, and then pushes the cannonball forward to hit the cannonball, on top of the cannonball, how much safety in the end, how much can have the greatest power, which requires a series of real yàn, and the fuse of the cannonball, at the beginning, using the most reliable and easiest to solve impact lead, not the less reliable delay lead.

After a week of continuous development, finally, a relatively mature plan was agreed, and after drawing accurate drawings, it was handed over to the machining workshop, which after a day, came up with a real product and made several mortars.

Because it is an experimental product, and it is a temporary production, whether it is a mortar that is barely made, or a shell that looks strange, followed by a mortar with the same strange appearance, it was taken to the artillery test site and tried.

Wang Jinming and several artillery commanders were also invited to watch, Wang Jinming has been back for a few days, and is arranging to suppress bandits, to be honest, it is not an easy thing to suppress bandits, it is not as simple as Yang Yuanzhao thought, you know, the northwest side is also vast and sparsely populated, because it is close to Mongolia, it is easier to get horses, plus this is an important trade route, the horse bandits who are active in this area are almost like cattle hair, and recently, because the year is not good, the bandits who cross the border from Henan, Shanxi, and even Shaanxi, there is no five thousandThere are also 3,000, hundreds of thousands of bandits, some have no fixed place, some gather in the mountains to guard, do not understand the information, rashly go, I am afraid that the 3000 new army, there will not even be a scum left, even if it is the Yellow River patrol battalion, really encountered with the bandits in the wild, it is not easy to defeat, and it is impossible to completely annihilate, similar to the red turban thief, but it can no longer be.

"Wangtou, what are we doing here, I haven't seen any cannons!" It was Li Tie, the team leader of the artillery team, who was from Hebei, and had dealt with Wang Jinming before, and then Feng Yuxiang went to the northeast, he searched in many ways, and invited him from the fourth town.

I have to say that Feng Yuxiang's vision is good, Li Tie's skills are strong, with the help of a large number of shells, his artillery skills are even stronger, and the most important thing is that his management ability is also outstanding, Feng Ying can train more than 100 gunners, which has a lot to do with him.

"I heard that it's a new cannon, it's a new product in the real yàn room, let's take a look!" Wang Jinming said in his mouth, but he didn't think much of it in his heart, after all, China has not made artillery for many years, Jiangnan Machinery Bureau, imitating 150, 180 naval guns, is completely a scum, even Beiyang is unwilling to use them, short life, and not easy to control, and foreign ones, completely different things.

"It's coming!" The sharp-eyed orderlies saw in the distance, from Baotou, a tractor was moving rapidly, followed by several carriages, less than 5 minutes, these vehicles stopped, Yang Yuanzhao first greeted Wang Jinming, and then everyone's eyes fell on those strange pipes.

The pipe, which seems to be a seamless steel pipe imported from Citi, is welded together with electric welding, and it seems to be a welder of a first-class master, and on the outside, there are not many welding joints in sight, a strange pipe, no running bolt, no aiming device, just a pipe with a bracket, and a square base at the bottom.

Li Tie couldn't help muttering in his heart: "Could it be that Yang Ye's brain is in water, what looks like a cannon is a cannon, and this is not a child's house!" ”

Although he thought so in his heart, Li Tie didn't say much about Yang Yuanzhao's status in Baotou. Li Tie knows very well that it can be said that the militia is not enough. Whether it is the Yellow River patrol battalion or not, they all rely on Yang Yuanzhao's snort to live.

After carefully positioning the mortar. A few real people carefully took out a few strange-looking cannonballs, which looked like ordinary cannonballs, but they were completely different, with a pointed head, a big one in front, and a few things that looked like arrows at the bottom after the back was tightened.

Although this is not the first time to test, a new product requires a lot of preparation. There are several hidden pits around, as well as protective bunkers built by sandbags, Yang Yuanzhao and the others withdrew from the test site and went to the permanent bunker next to them. Of course, this shell is a practical type, and the barrel is filled with a small amount of gunpowder and earth. The explosion was not very powerful.

Straightening the position and aiming ahead, the real yàn member was slightly nervous. But he stopped his hand and put it on the muzzle of the gun. In the other man's count, the cannonball was dropped. With a clear sound, a cloud of smoke came out of the muzzle, and the shell flew forward steadily, and in the next time, it fell a hundred meters away, and there was another sound, and the shell exploded.

"This!" Li Tie's eyes widened, although the cannon was not far away, that is, about a hundred meters, but it looked like child's play, the cannon like a child playing at home was really a cannon.

The researchers have stepped forward and began to calculate the number jù, similar to the collection of real yàn and number jù, from the beginning of the project, it has been in progress, and Wang Jinming and Li Tie are more concerned about this strange cannon, Li Tie even asked Yang Yuanzhao for consent, stepped forward to test the weight, and the choice is light steel pipe, plus the base and bracket, less than 7 kilograms, one hand, can be easily lifted, than a rifle, not much heavier.

Li Tie's face immediately changed, and he went to Wang Jinming's side and told Wang Jinming about the weight he estimated, Wang Jinming also stepped forward and experienced it personally, and there was no calm expression on his face, replaced by solemnity.

A cannon that can be carried by a single soldier, for a unit, what is the concept, whether it is Makqin or 75 guns, they are all firepower as a town, the strength is strong, but the movement remains the same, for mountain warfare, as well as for bandits, they are almost just a decoration, similar to the time of the red turban thief, in a fixed place, a fixed battlefield, ambush warfare, after all, it is a minority, against the horse bandits, more encounters, can rely on, that is, rifles, Makqin is not reliable, No one will give you time to place Makqin, but this cannon seems to have given him a new idea.

"Yuan Zhao, what is this cannon called, and what are his technical indicators!" Wang Jinming said solemnly to Yang Yuanzhao.

"This!" Yang Yuanzhao smiled slightly, and asked the real yàn member: "What is the index of the real yàn17 mortar!" ”

"12 rounds per minute, the weight of the gun is 7 kilograms, plus the attachments, the total weight will not exceed 12 kilograms, the shell weighs 2.5 kilograms, it can charge 0.35 kilograms, and the maximum range in the real yàn is 500 meters!"

The charge is not much, 0.35 kg, that is, more than 7 taels, but this is loaded with yellow se fried yao, 7 taels of yellow se fried yao, not necessarily much worse than using old-fashioned shells, 12 rounds per minute, this speed, far more than the ordinary 75 heavy guns, 500 meters of range is closer, but as an infantry support firepower, enough, at least in the offensive battle, enough to knock out the front of the firepower, the most important thing is that he is light enough, 12 kg of weight, plus 24 shells, Two or three well-trained soldiers, they can be carried with them, marching and moving with the troops, and this is very useful.

"Yuan Zhao, our patrol battalion and militia must be equipped with it!"

"It's not mature yet, it needs to be improved, so let's do it for half a month at most, and when it's stable and finalized, I will definitely give you the first batch of equipment!"

Coming down from the test site, Yang Yuanzhao's face was full of smiles, not only solved the problem of mortars, the new army in Baotou will have a close range of support firepower, another reason is that the task has finally taken a big step forward, it belongs to the sub-project of artillery, and the monthly output has increased to 3 units, obviously, mortars are also cannons recognized by the mission. (To be continued......) RT