...

They were stunned and then smiled awkwardly.

But when Li Chengqian was angry, it was a little inappropriate to laugh, so he held back his smile.

Li Chengqian continued to exhortation: "We have divided the work and groups for everyone, so we can conduct multiple experimental tests at the same time, and there is no need for so many people to guard one. You can write down the data after each person's experiment, then hand it down, and then discuss it!"

After saying that, he pointed to the flat terrain around him and said, "Dig deep trenches for me here. I just wanted to find a safe trenches and lie down." " Fortunately, you failed to come out. If you make a punctual, you will all become barbecue!"

After scolding, Li Chengqian stopped for three seconds. They felt that Li Chengqian stopped, and then asked: "Your Highness, there are five rockets here, so what should I do to test the fire?"

When Li Chengqian heard this, damn!

If the Rockets really landed just now, it would cause the five-tube rockets here to explode together.

Tsk, these treasures are all gone!

"Safety first, do you know? You can't put all the rockets together here. If it explodes, it will be all over." Li Chengqian cursed again, "Move to the side first, leave only one tube here for test-firing. First dig deep trenches and remove all the heads for me. Only the necessary personnel are left here during the test-firing, and everyone else has stood far away!"

They agreed.

With a wave of his hand, an engineer immediately ran up to dig a trench.

The engineers began to dismantle.

Li Chengqian became the person who stayed unless necessary in his words, so he followed Cheng Laohuo and stood far away.

After they finished, they started to test the shot.

After shooting, they took back all the rocket wreckage and surrounded them together to discuss which type of outer skin is the most suitable.

After they discussed it, they didn't even take care of Li Chengqian. So they carried a tube and ran back to the laboratory. It seemed that they had some inspiration.

Li Chengqian was not angry when he was seen and left his own.

When I came over the next day, I saw them being tested again.

A rocket shot out, one hundred meters, two hundred meters, the height was getting higher and higher. After more than two hundred meters, it slowly slid down, flew out 500 meters, and then inserted into the soil!

Li Chengqian subconsciously covered his face with his hands, but he did not have the explosion as he imagined!

Oh, it seems that I haven't installed any more heads.

"Okay, fly a mile away!" an engineer shouted happily.

Another man said disheartenedly: "It's gone!"

"Oh!" Everyone sighed together.

Li Chengqian walked over and asked, "What's wrong?"

"Your Highness, the fuse has failed, and the small explosion inside has not exploded." said the chief engineer.

Li Chengqian was about to speak. The person who went to check the rockets over there pulled the rocket out of the ground and waved the little red flag here.

Everyone knows that something is happening there.

After a while, they sent it over and said, "The fuse was broken. It may have been broken during flight, or it may have been badly arranged. It was broken."

For a reason, they quickly recorded it.

Then they conducted a test shot of the second tube.

"Cleaning the site!" an engineer shouted.

So a large majority of people left the test launch site.

Li Chengqian also left and went to the small shed in the distance. Seeing them skillfully moving, after igniting the fire, the personnel quickly jumped into the ditch and hid.

The observers and recorders stood behind a built wall and watched the rockets' situation.

The rocket spewed out flames and then flew out.

The flight looks no different from the one I just now.

It seems that they have fixed the outer skin.

The rocket flew higher and higher, and suddenly, in mid-air, the rocket head shone for a moment.

Li Chengqian was stunned, but it didn't look like an explosion, so he waited for a while and asked them what was going on.

The Rockets were inserted into the soil almost a mile away.

Li Chengqian walked over and asked, "What's going on?"

"Your Highness, your head exploded in advance again. That was the fireworks that replaced the head." An engineer said.

On the way of the rocket flying, someone had already run out to check. There were small flags on the road as a sign of distance. Check the small flag. It just exploded over the third small flag, which exploded in advance at 300 meters.

Waving the flag there, and recording it immediately.

Next, the rocket was continuously shot out one by one, and then recorded one by one.

I was ejaculated in more than 30 tubes in one morning.

This production volume is quite high. It can be seen that Lao Li is fully supporting him, and Lao Huo Cheng has also put his efforts into it and let these people do it.

In the afternoon, another group of people came to experiment.

This time, each of the rockets shot out has a different distance.

This is the distance to test the amount and angle of the gunpowder, which determines the distance.

At the same angle, different amounts of gunpowder, and the distance of shot out, are all recorded. This can be used as a parameter in the future. During the battle, you can visually measure how far the two places are and use this angle. Then check the parameter table and use the rocket at which level of rocket should be used as much as possible.

Although the rocket launch requires a parabola to calculate and add accuracy, this thing is too complicated. The data produced by this practice is also quite useful.

When someone else was making fire, Cheng Lao Huo sat in pángbiān and sighed, like a dead wife.

Isn’t his wife the future mother-in-law of Li Chengqian? Bah!

"Haha, Uncle Cheng, what's wrong?" Li Chengqian walked over with a smile and greeted: "Is it because the smoke here smells too strong?"

Could it be that I have bronchitis?

"It's so annoying for people to compare with others!" He sighed.

Li Chengqian couldn't help but become curious. Is he so popular?

“How to say it?”

Today is a sunny day, the sky is very blue, and there are only a few white clouds in the sky. Old Man Cheng looked to the northeast and said, "Yuchi Laohei, you have already left Chang'an!"

Yuchi Laohei?

Li Chengqian was very surprised. What did he do?

Cheng Lao Huo said another stupid thing and said, "After becoming the director of the Gunpowder Bureau, I will always stay here. The mission I originally went to was my husband, but now it was snatched away by Yuchi Laohei. Not only was it snatched away, I also had to watch him go to the northeast to be arrogant, and I am staying here like a nerd, this is a tragic man!"

In the end, Li Chengqian understood.

So that's the case!

The old man is sick and he is unwilling to accept it.

Li Chengqian would not comfort an old man. But the old man came to him and stared at him resentfully.
Chapter completed!