A few days later, seeing that Yang Yifei had successfully integrated into the collective and began to lead the Perak Hall disciples into production and carry out the training of gunpowder workers, Chen Jinnan was also relieved and prepared to leave.

After all, as the chief helmsman, the Heaven and Earth Society still needs to rely on him to take the helm, and it is impossible to stay here forever.

After Yang Yifei sent him to the beach, he pulled him aside and said, "Chief helmsman, now that the Perak Hall has been put into production, a lot of materials and materials are needed in the later stage, and there are also a lot of coal reserves, now is the time to go and come up with another treasure, so as not to have a broken chain of funds in heaven and earth." ”

Chen Jinnan perked up and said happily: "That's right, although the treasure of Emperor Liang Yuan is rich, but in the past half a year, we have purchased all kinds of materials, and the treasure has spent thirty percent. ”

Yang Yifei nodded, leaned close to Chen Jinnan's ear, and said softly: "The treasure hiding place of the Manchu Tartars is in Luding Mountain outside the Guan, at the confluence of the Emur River and the Heilongjiang River. ”

Yang Yifei deliberately avoided the other people in the Thunderbolt Hall, because he was afraid that someone would not be able to resist the temptation of the treasure and do something that he would regret, so he only told Chen Jinnan the location.

At that time, Chen Jinnan will choose a trustworthy brother and go to the gate to raise the treasure, but even if it is a trustworthy person, he will not easily reveal his tone before he arrives at Luding Mountain, and it will be no problem to say it when he arrives at the place.

Chen Jinnanqiang suppressed his joy, and said with his head bowed: "I have made a note, this time I will go back, I will arrange for people to go to the treasure as soon as possible, and you will also step up to take Shenlong Island, the treasure is safer overseas." ”

"As for coal, we have secretly taken over one coal mine in Shanxi, and we are trying to find several others, and there will be no shortage of coal."

Yang Yifei said with satisfaction: "That's good, you can rest assured that Shenlong Island doesn't need much, as long as you can make ten artillery pieces and more than 100 muskets, it is more than enough to take Shenlong Island, half a year to ten months is enough." ”

Chen Jinnan slapped Yang Yifei on the shoulder with high spirits, and said, "Okay, our brothers perform their duties and work together, I believe that it won't be long before we can declare war on the Tartars." ”

Yang Yifei nodded heavily, then hugged his fists and smiled: "Then the little brother wishes the chief helmsman a smooth journey." ”

……

Chen Jinnan left, took most of the boats, and needed boats to carry treasures outside the customs, and he only left four large boats, which were used as Perak Tang's external contacts, and there were many small boats on Diaoyu Island, which were enough.

After half a month of training, the disciples responsible for the manufacture of gunpowder and thunderbolts have profoundly clarified various precautions and taboos, and have begun to officially put them into production.

A total of 120 people made gunpowder and thunderbolts, led by henchmen brought by Xu Tianchuan and others from Aokido, each of whom led a group of five disciples, divided into six workshops, four of which were responsible for synthesizing black powder and two workshops were responsible for making thunderbolts.

These six workshops are very spacious, and the teams are far apart, so that even if there is an accident, the loss can be minimized, Yang Yifei attaches great importance to safety work, and strives to do what can be done to the limit.

It is a matter of their own lives and the great cause of the Heaven and Earth Society, and these disciples are very careful when working, striving to achieve perfection in every step and ensuring that there are no accidents.

In the entire Thunderbolt Hall, and even the entire Heaven and Earth Society, only these more than 100 people knew the perfect formula ratio of black powder, of course, for Xu Tianchuan and the others, Yang Yifei did not hide it, but they were required to keep it strictly secret and not to leak it out.

Xu Tianchuan and the others and their disciples all knew that the perfect formula ratio of black powder was the key to ensuring their transcendent status, so they naturally wouldn't say it, because if everyone understood it, they would be worthless if they didn't have anything special.

Thunderbolt bombs began to be produced in large quantities, and the specifications were all made according to three taels of black powder, and the power was just kept at the appearance of a grenade, but because there was no shell of the grenade, it was much smaller, and after mixing some broken porcelain pieces, the lethality was not much smaller than that of the grenade.

In addition to gunpowder and thunderbolts, fuses must also be made, which are indispensable for artillery.

However, it is much simpler and safer to make a fuse, first put the linen cloth out of boiling vinegar and boil, take it out and dry it, cut it into a uniform width of cloth, then sprinkle gunpowder in the cloth strip, and finally roll it into a rope shape, wrap the gunpowder in the rope, and it becomes a fuse.

There is no danger in this work, both men and women can complete it, and each person can rub out a roll of fuse with a bamboo tube of gunpowder, because there is too little gunpowder, and there will be no accidental explosion.

With the fuse, the flowering bomb can also start to be produced, the so-called flowering bomb is an internal hollow iron ball, filled with black powder, inserted into the fuse, and then sealed the opening.

When firing, a partition needs to be placed in the barrel to separate the gunpowder from the flowering shell, and when the fuse of the projection is ignited, the fuse of the flowering bullet must be ignited at the same time.

For the length of the fuse, it needs to be calculated after several live fire tests to get the most suitable length.

When the first musket was manufactured, Yang Yifei decided on the charge of the paper shell bullet after testing, and then the paper shell bullet also began to be put into production.

Of course, the principle of paper shell shells can be applied not only to muskets, but also to artillery.

Load a certain amount of gunpowder in the flammable material in advance to form a bag or block, and how much gunpowder is needed when firing the gun, you can directly stuff it in, so that the process of pouring gunpowder and then tamping it with a whole strip is saved, and the rate of fire is faster.

After half a month passed, with the excellence of the blacksmiths, the first barrel was successfully cast, and after the installation with the pedestal, Yang Yifei began the test of the artillery charge in the attention of all the disciples.

The blacksmith leader of the Heaven and Earth Society is the inheritance of the craftsmen of the Daming God Machine Battalion, with exquisite craftsmanship, coupled with the alloy formula provided by Yang Yifei, the cannon barrel cast is very dense, and there are no impurities, and there will be no bee eyes on the barrel of the cannon cast by Tartar, which is very easy to explode.

The amount of artillery charge is related to the adjustment of the gun's long-distance range, and the small-range correction can be achieved by adjusting the elevation angle of the gun, and the large-distance range adjustment needs to control the charge to achieve.

After testing and calculation, Yang Yifei divided the charge into five grades, and each additional grade of charge increased the range of the gun by 200 meters.

Therefore, charge No. 1 has a range of 200 meters, charge No. 2 has a range of 400 meters, and charge No. 5, also known as charge full, has a range of up to one kilometer.

So how did Yang Yifei test the approximate distance without a rangefinder or a military telescope with a ranging function?

Very simply, the "jumping eye ranging method" commonly used by artillery during the Anti-Japanese War in later generations, that is, the picture often seen in film and television dramas, where the artillery compares a thumb and squints one eye at the target.

At that time, various ranging tools had not yet been developed, and the artillerymen used this method to measure distance.

By estimating the size of the target, combined with the similarity triangle principle, the approximate distance between the target and our side can be calculated.

In this method, the distance from the standing point to the target is obtained by multiplying the width of the measured object by 10 based on the distance between the two pupils about one-tenth of the length of one's own arm.

The specific method is: raise the right arm horizontally, the thumb is straight up, the upper arm is perpendicular to the body, close the left eye, by rotating the waist, aim (cover) the target with the thumb, at this time, the right eye, thumb, the target is in a line.

Then don't move your body and arms, close your right eye, open your left eye, and then you will see that the target appears on the left side of your thumb, there is a horizontal distance, estimate the size of the target, and judge the lateral distance from the target to the position of the thumb according to the size of the target.

Multiply this lateral distance by ten to get the distance the target is from us.

Although this ranging method is rough and there will be errors, the error is not large, and in the absence of effective equipment, this method can only be used.

When the artillery unit is formed in the future, Yang Yifei will also teach this ranging method.