As we all know, the greatest power of the flowering bomb is the debris attack generated when it explodes, just like the goddess scattering flowers.

Xu Changqing was not too worried about the explosive power of the gunpowder in it, but was very worried about the shell of the bamboo tube.

It must be known that the power of gunpowder at this time is limited after all, there is no standardization, and it is impossible to quantify.

When the gunpowder explodes, destroying the shell of the bamboo tube, how much can the power of the Heavenly Maiden scatter flowers show, and how much lethality can it cause to the enemy? This is the issue that Xu Changqing is most concerned about.

Zhang Jiuye has recovered a lot at this time, and the whole person is a few years younger.

To be honest, being pinned on by Xu Changqing with such high hopes, his pressure is really a bit too big.

Hurriedly smiled: "General, this matter was really difficult at the beginning." The main thing is that the bamboo is thick and pickled, and it is very tough. At first, a lot of gunpowder couldn't blow up the bamboo, and even if it could barely blow up, the effect of the sand and gravel inside was very poor. But if the bamboo is not pickled and dried, I am afraid that there will be more trouble. We've been working hard for the past few days, and finally came up with a solution, which is to polish the inside of the bamboo tube thinner......"

With Zhang Jiuye's narration, Xu Changqing quickly understood what he meant.

People must not have suffocated to death.

Zhang Jiuye: They used the simplest, but also the most practical method.

That is to polish the inside of the bamboo tube smooth, polish it as thin as possible, and then stuff some soft dried leaves into it as filling, and then stuff some sand and gravel to ensure the gathering of gunpowder in the oiled paper, and at the same time attach another layer of lethality.

In this way, once there is an explosion, these gunpowders can exert their power to the fullest.

Even if this does not meet Xu Changqing's most ideal expectations, it is already an excellent effect.

However, the efficiency of producing bamboo tube flowering bullets will be reduced, and more manpower will be required.

Xu Changqing immediately reassured Zhang Jiuye, and immediately mobilized a group of people from Hope Island to come back to specialize in concocting bamboo tubes.

Zhang Jiuye, who also made him, suddenly thanked.

Subsequently, Xu Changqing chatted a lot with Zhang Jiuye, including some ideas for explosives packs.

Zhang Jiuye immediately nodded frequently, indicating that he would enter the research and development process immediately.

For a larger weapon such as an explosives bag, Xu Changqing was not untargeted, but had already planned.

It's a bit like the use of 'mine warfare' in our army in later generations.

Since discovering Zhang Dagong's specialty, Xu Changqing has this thought.

It's still the old saying: "It doesn't matter if it's a white cat or a black cat, the one who can catch a mouse is a good cat!" ”

If it's just Xu Changqing himself, the effectiveness of these things is actually not too good, after all, Xu Changqing is still too thin and lacks positive ability, which makes it difficult for Xu Changqing to really implement even if he has many advanced ideas and weapons that are beyond this era.

However, with the support of Cao Bianjiao and Wang Pu, things are different!

As long as the timing is right, Xu Changqing has the ability to go deep into the hinterland of the battlefield and carry out some sophisticated operations!

The explosives package is much simpler than the flowering bomb, the key is to bury the fuse and gather the power of gunpowder, but this is not very difficult for a veteran like Zhang Jiuye.

The only thing to worry about is that the amount of gunpowder must be reasonably proportioned, after all, Xu Changqing's gunpowder stock at this time is not enough, and only seven or eight thousand catties can really be used.

…

There are many problems on the side of the flowering bomb, and it needs to be further deepened and improved, mainly because it is too heavy, and it may be difficult to throw, but on the catapult side, Li Zhu is exceptionally smooth.

The main reason is that the catapult is simple in principle, with solid cow tendons as support, Li Zhu and they only need to make a little more force step by step.

At this time, in more than two days, more than 50 catapults, or 'projectile vehicles' and 'large slingshots', have been built.

Xu Changqing asked Li Zhu and them to try it with a bamboo tube filled with sand, and the effect was quite gratifying.

This kind of bamboo tube of about seven or eight catties can be projected by catapults for 1780 or 200 meters.

Li Zhu hurriedly explained: "General, the main thing is that the beef tendon has just started to be used, and it is still a little astringent, and when it is really opened, it is not a problem to go farther." ”

Xu Changqing nodded.

This distance, it's almost okay.

If it is said that the pitchers who throw flowering bombs still need time to train, and the flowering bombs still need to be refined, but Li Zhu, these carpenters, can be directly used as 'artillery' to pull onto the battlefield.

In fact, there is still a problem with the design of the fuse of the flowering bomb, and the best result is that it is projected in the air, and at the moment when it is about to land, it will explode directly in the air to form the maximum lethality.

But everything in the world can't be perfect.

If there is a similar chance, Xu Changqing plans to directly use the catapult to throw the flowering bomb!

After all, the strength of the two countries is the crown, and Huaguo is a traditional farming nation, as long as Hong Chengchou does not have water in his head, I am afraid that he will definitely not fight with the Qing army head-on, and positional warfare is still the mainstream!

This makes Xu Changqing have room to give full play!

…

Although he still wanted to stay on Shark Island and continue to discuss some things with Zhang Jiuye, at this time, time was pressing, and Xu Changqing could only leave first.

However, Zhang Jiuye has been completely brainwashed by Xu Changqing, and this old man works hard, so it shouldn't be a big problem.

After all, their families are all in the hands of Xu Changqing, and if they dare to cheat, they will not be able to bear the consequences.

Not to mention, they don't know water at all, they are trapped on this deserted island, and it is basically impossible to leave without Xu Changqing's order.

In the evening, Xu Changqing re-boarded the warship and headed for Hope Island.

Li Zhu originally wanted to leave with Xu Changqing, go back to Hope Island to see his wife and children, and by the way, show off the reward of twenty taels of silver that Xu Changqing gave him.

But Xu Changqing's warship is too small after all, and it is full of supplies, and it can't fit so many catapults, so this guy can only endure it for another day, and wait for Xu Changqing to send a boat to pick them up tomorrow to Hope Island.

rushed back to Hope Island, and it was just over eight o'clock.

At this time, the huge island of hope is no longer desolate as before, it is full of various sheds, simple houses, and fires are burning, shining on the faces full of hope around them.

From afar, it looks like a thriving city.

Xu Zhong, Ma Luan, Zhang Hongqiang, Uncle Hong, Uncle Guang and others got the news, and they hurriedly came over to greet Xu Changqing.

These days, Xu Changqing is already very busy, but they are even busier, almost without touching the ground, working at full load for twelve hours a day.

Looking at the neat continuous camp, everyone has lost a lot of weight, and Xu Changqing is also slightly emotional and a little distressed in his heart.

Lord Zhongtang is worthy of being an expert among experts, and that wise saying is definitely a classic among the classics of management: "Don't use nepotism, do you want to use people to be nepotistic?" ”

The group was about to report to work in a hurry, but Xu Changqing interrupted them and said with a smile: "It's all my own masters, why are you in such a hurry?" Come, let the firemen cook a few dishes first, and let's talk and talk! ”

…

The blazing bonfire crackled, and in the simple official hall in the center of Hope Island, Xu Zhong and the others took turns to report to Xu Changqing.

The main ones are the recent construction of Hope Island, the migration process from Shark Island, as well as the operation of the island, the supply and fishing situation, and the mooring and resettlement of the fleet.

To be honest, with Xu Zhong here to overview these government affairs, it is more organized than Xu Changqing.

After all, Xu Zhong is the second housekeeper of the Xu family, and he has been engaged in this kind of complicated management work for twenty or thirty years, and there is nothing to say about his experience and means.

However, when it comes to the overall situation and future planning, he can't do it.

However, what Xu Changqing needs now is this kind of person with strong execution ability and stable management ability, as for planning and the future, including leadership, why do you need others?

At this time, the side of Hope Island has basically stabilized.

There are also several fishing spots on the island, and the material storage is set up, even if it is not as good as Shark Island to catch sharks, but the auxiliary soldiers who lead the fishing team are all veterans, and there is no big problem.

In the eastern part of the island, on the edge of the gentle reefs, in a small harbor slightly deeper, a pier has also been built.

Although the many warships and bamboo rafts that are moored are a little crowded, as long as there is no major storm, it should not be a big problem.

Seven or eight miles southeast of Hope Island, there is a small group of islands without fresh water, and there is a good harbor in it, even if there is a storm, as long as you go over in advance to avoid it, it is not a big problem.

As for the mooring of the bamboo raft, it is much simpler, it is completely a group of sea 'off-road vehicles', which are parked directly on the reef.

After dinner, the report was almost over, Xu Changqing asked the others to go back to rest first, leaving only Xu Zhong himself.

The gentle smile that Xu Zhong had maintained before soon disappeared, and he looked at Xu Changqing worriedly: "General, Ning Yuan's side, isn't it, has he already gone on the expedition?" ”

Xu Changqing was not surprised that an old Jianghu like Xu Zhong could guess the general trend of Ning Yuan.

If you can't guess, it will disappoint Xu Changqing.

"Whew."

Xu Changqing let out a long breath of turbidity, but looked at Xu Zhong very calmly and said: "Uncle Zhong, the governor swore to go to the army early this morning, and I will leave for the front line in Jinzhou tomorrow morning!" ”

"This ......"

The old dry tobacco pouch in Xu Zhong's hand was almost on the ground, but it took a moment to come back to his senses, and he hurriedly said: "General, this, so urgent, that ......"

Xu Zhong wanted to say something, but Xu Changqing smiled and waved his hand, "Uncle Zhong, I know what you mean." It's a pity. The general trend has been decided, we can only obey the general trend! ”

Saying that, Xu Changqing patted Uncle Zhong's shoulder with a smile: "Uncle Zhong, you don't have to worry too much, this time my Ming power is not small, and it is not yet known who will kill the deer!" Moreover, this is a good opportunity for me and our Xu family! ”

Xu Zhong looked at Xu Changqing, who was calm and calm, as if everything was under control, how could he not understand what Xu Changqing meant?

The heart hanging in my heart is also gradually settling down.

God is pitiful, the ancestors have opened their eyes, and the Xu family has a queen.

However, Xu Zhong was still not at ease, and was busy telling Xu Changqing carefully.

After all, even though Xu Changqing is talented, he is still too young, and Xu Zhong is very afraid that Xu Changqing will do something irrational and out of control because of impulsiveness.

Regarding this, Xu Changqing listened with a smile, giving Xu Zhong enough face and enough trust to him.

…

Xu Zhong left, Zhao Zengjin walked in quickly, and said excitedly: "General, the map is ready!" ”

"Huh?"

Xu Changqing's spirit was also perked up, "Hang up!" ”

"Good come!"

Zhao Zengjin hurriedly beckoned a few relatives and carefully hung the map on the bamboo wall.

The map is very large, seven or eight square meters, from the line of Yongping and Shanhaiguan to Ningjin and Liaohe, including many areas of Mongolia.

Of course, except for Ning Jin's side, which was personally surveyed and redrawn by the Ye Bushu under Xu Changqing's command, the others were still based on the big framework before the Ming Dynasty.

But don't underestimate this simple change.

The line from Ningyuan to Jinzhou, including Juehua Island, many small islands on the sea, famous and unknown, are all standardized, including some reef areas, as well as the topography of the seaside, all of which are clearly marked.

In the afterlife, that has a super strong. In the age of satellites, this is certainly nothing, but at this time, this is definitely a national weapon!

It can save the army a lot of detours!

Xu Changqing had seen some of the maps drawn by Zhao Zengjin, Ergou, Zhang Long, and Zhang Hu before, and to be honest, they were ugly and couldn't look at them directly.

But at this time, with these meticulous depictions of Qin Jun not collecting oil at night, it is completely possible to get on the big stage.

After carefully reviewing it several times, Xu Changqing was also extremely satisfied, and said to Zhao Zengjin: "How many pictures have you drawn now?" ”

"It's almost half of the two, and they're all working overnight, and four tomorrow morning is not a big problem."

"Four?"

Xu Changqing touched his nose, "It's almost enough!" Tell those Qin Jun that they don't collect the night, and after painting four pictures tomorrow morning, I have a heavy reward! ”

"Yes!"